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AMD Ryzen 7 7840U Review | 78 Data compared

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  • Avg. price in UK: ~£840
  • Avg. price in US: ~$840
  • PassMark benchmark result: 24393
  • N. of physical cores: 8
  • CPU boost clock speed: 5.1 GHz

AMD Ryzen 7 7840U review. Compare 78 technical specifications and user reviews to see how it ranks among processors and if it is worth buying.

6.1

Overall score

What it is: An overall evaluation of the processor's quality, based on technical analyses and user reviews.

When it matters: When you need a quick reference to identify the best processors on the market.

Score components:

90.0%

6.1

Technical Score

10.0%

?

User score

Good
6.1

Technical Score

What it is: An assessment of the processor's technical performance, covering key areas such as processing performance, core configuration, efficiency, platform support, integrated features, and thermal behavior.

When it matters: When you want to compare processors based on technical performance and available features.

Score components:

60.0%

5.2

Performance

18.0%

7.3

Cache & Architecture

10.0%

7.6

Memory & PCIe

7.0%

7.1

Power & Thermal

4.0%

8.3

Platform

1.0%

8.7

Integrated Graphics

Good
?

User score

What it is: A rating that combines user reviews and the total number of reviews received by the processor.

When it matters: When you want to know how a processor performs in real workloads and how reliable it is for gaming, productivity, and efficiency according to user feedback.

Score components:

70.0%

?

User reviews

30.0%

?

Popularity

  • 6.0
    Gaming

    Score components:

    30.0%

    6.6

    PassMark single-core benchmark score

    25.0%

    6.6

    Geekbench 6 single-core benchmark score

    20.0%

    7.9

    CPU boost clock speed

    17.0%

    3.3

    L3 cache

    8.0%

    3.5

    N. of physical cores

  • 4.5
    Video editing

    Score components:

    45.0%

    5.0

    Geekbench 6 multi-core benchmark score

    20.0%

    3.5

    N. of physical cores

    20.0%

    5.2

    CPU threads

    15.0%

    3.3

    L3 cache

  • No image
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Best prices in UK

    N/A~ £840

Best rankings

?

Available: ranking among products currently available (including other versions of this product).
All: ranking among all products in the database.

Verdict

The AMD Ryzen 7 7840U is a high-performance, ultra-thin laptop processor based on the 'Phoenix' Zen 4 architecture and manufactured on a 4nm process. It features 8 cores and 16 threads with a base clock of 3.3 GHz and a boost clock of up to 5.1 GHz, supported by 16MB of L3 cache and a configurable TDP of 15–30W. Main characteristics include the integrated Radeon 780M RDNA 3 graphics with 12 compute units and the inclusion of a dedicated Ryzen AI engine (XDNA) capable of up to 10 TOPS. Key pros include exceptional energy efficiency, strong multi-threaded performance that rivals some H-series chips, and class-leading integrated graphics suitable for 1080p gaming. Cons include high idle power consumption in some laptop implementations and the lack of overclocking support due to its soldered BGA design.

Technical Specifications of processor AMD Ryzen 7 7840U

Technical Score

What it is: An assessment of the processor's technical performance, covering key areas such as processing performance, core configuration, efficiency, platform support, integrated features, and thermal behavior.

When it matters: When you want to compare processors based on technical performance and available features.

Score components:

60.0%

?

Performance

18.0%

?

Cache & Architecture

10.0%

?

Memory & PCIe

7.0%

?

Power & Thermal

4.0%

?

Platform

1.0%

?

Integrated Graphics

6.1
AMD Ryzen 7 7840U has a technical score of 6.11 points, which is higher than that of 65.8% of products in this category.
User score

What it is: A rating that combines user reviews and the total number of reviews received by the processor.

When it matters: When you want to know how a processor performs in real workloads and how reliable it is for gaming, productivity, and efficiency according to user feedback.

Score components:

70.0%

0.0

User reviews

30.0%

1.0

Popularity

?
Popularity
What it is: An indicator based on the number of reviews received by the processor.
When it matters: When you prefer to choose a processor reviewed and selected by many other buyers.
1.0
AMD Ryzen 7 7840U has a popularity of 1 points, which is higher than 0% of products in this category.
Ratio quality/price

What it is: An indicator that combines the processor's overall rating with its cost.

When it matters: When you are looking for a processor with a good balance between performance, efficiency, and price.

Score components:

60.0%

6.1

Overall score

40.0%

6.1

Price

6.1
AMD Ryzen 7 7840U has a quality-to-price ratio of 6.1 points, which is lower than 61% of products in this category.
Brand name
What it is: The manufacturer or brand of the product.
When it matters: When you prefer a specific ecosystem, support network, or design philosophy.

Importance: MEDIUM

AMD
Processor type
What it is: The kind of system the processor is built for, such as desktop PCs, laptops, workstations, or servers.
When it matters: When you want a processor meant for the kind of machine you are actually building or buying, rather than a chip aimed at a different class of system.

Importance: HIGH

mobile
AMD Ryzen 7 7840U belongs to the mobile processor class, which is more advanced than that of 7.3% of processors and equal to that of 48.6% of processors.
CPU socket
What it is: The physical socket the processor fits into on the motherboard.
When it matters: When you need to make sure the CPU can actually be installed on a specific motherboard.

Importance: HIGH

FP8
AMD Ryzen 7 7840U uses the FP8 CPU socket, which is newer than that of 51.3% of processors and equal to that of 1.8% of processors.
Chipset
What it is: The motherboard chipset families officially meant to work with the processor.
When it matters: When you are checking whether a CPU will work with the motherboard features and platform you plan to use.

Importance: HIGH

N/A
CPU architecture
What it is: The processor family or design generation behind the chip, such as Zen 4 or Raptor Lake.
When it matters: When you are comparing CPUs across generations and want a clearer sense of their design age, feature level, and expected performance class.

Importance: HIGH

x86-64
AMD Ryzen 7 7840U uses the x86-64 architecture, which is more advanced than that of 1.7% of processors and equal to that of 98.3% of processors.
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N. of physical cores
What it is: The number of physical CPU cores on the processor.
When it matters: When you run workloads that benefit from more real cores.

Importance: HIGH

Good value: 8+

8
AMD Ryzen 7 7840U has 8 CPU cores, which is more than 63.4% of processors and equal to 13.6% of processors.
CPU threads
What it is: The total number of processing threads the CPU can handle at once.
When it matters: When you run heavily threaded workloads or multitask a lot.

Importance: HIGH

Good value: 16+

16
AMD Ryzen 7 7840U offers 16 CPU threads, which is more than 71.1% of processors and equal to 13.9% of processors.
Threads per core
What it is: The number of threads each physical core can handle at once.
When it matters: When you want to understand how much thread-level parallelism each core can provide in multitasking or heavily threaded work.

Importance: MEDIUM

Good value: 2

2
AMD Ryzen 7 7840U offers 2 threads per core, which is more than 30.4% of processors and equal to 69.6% of processors.
CPU boost clock speed
What it is: The highest clock speed the processor can reach under boost conditions.
When it matters: When you care about peak speed in short bursts.

Importance: HIGH

Good value: >4.7 GHz

5.1 GHz
AMD Ryzen 7 7840U reaches a boost clock of 5.1 GHz which is higher than that of 86.1% of processors and equal to that of 4.1% of processors.
CPU base clock speed
What it is: The processor's normal all-core starting frequency before boost behavior raises clocks temporarily.
When it matters: When you care about steadier performance in longer workloads rather than short burst speed alone.

Importance: MEDIUM

8 x 3.3 GHz
AMD Ryzen 7 7840U has a base clock of 8x3.3 GHz which is equal to that of 100% of processors.
Show more
Semiconductor size
What it is: The manufacturing process node used to produce the processor, usually expressed in nanometers.
When it matters: When efficiency, heat, and the relative modernity of the chip-making process matter to your comparison.

Importance: HIGH

Good value: <10 nm

4 nm
AMD Ryzen 7 7840U uses a 4 nm process node, which is more advanced than that of 88.4% of processors and equal to that of 7.5% of processors.
Foundry
What it is: The semiconductor manufacturer that physically fabricates the processor chip.
When it matters: When process source, manufacturing generation, or foundry differences matter to your comparison more than day-to-day performance alone.

Importance: MEDIUM

TSMC 4 nm
AMD Ryzen 7 7840U is built on the TSMC 4 nm foundry process, which is more advanced than that of 87% of processors and equal to that of 7.5% of processors.
L3 cache
What it is: The total amount of L3 cache available on the processor.
When it matters: When you want better performance in cache-sensitive workloads and games.

Importance: MEDIUM

Good value: >=16 MB

16 MB
AMD Ryzen 7 7840U has an L3 cache of 16 MB which is larger than that of 64.2% of processors and equal to that of 12.7% of processors.
L2 cache
What it is: The total amount of L2 cache available across the processor.
When it matters: When you want to compare CPU design efficiency and how much fast intermediate cache the cores have available.

Importance: MEDIUM

Good value: >=6 MB

8 MB
AMD Ryzen 7 7840U has an L2 cache of 8 MB which is larger than that of 73.5% of processors and equal to that of 4.3% of processors.
L1 cache
What it is: The total amount of L1 cache built into the processor, which sits closest to the cores.
When it matters: When you are comparing low-level CPU design details rather than the broader performance picture buyers usually notice first.

Importance: MEDIUM

Good value: >=512 KB

512 KB
AMD Ryzen 7 7840U has an L1 cache of 512 KB which is larger than that of 63.6% of processors and equal to that of 9.5% of processors.
Show more
DDR memory version
What it is: The RAM generation the processor is designed to support, such as DDR4 or DDR5.
When it matters: When you need the CPU to match the kind of memory platform you want to buy or reuse.

Importance: MEDIUM

Good value: DDR5

DDR5
AMD Ryzen 7 7840U supports DDR DDR5, which is newer than that of 66.4% of processors and equal to that of 12.6% of processors.
Maximum memory speed
What it is: The highest official memory speed supported by the processor.
When it matters: When you choose RAM and want to know the supported speed ceiling.

Importance: HIGH

Good value: >=4800 MHz

7,500 MHz
AMD Ryzen 7 7840U supports memory speeds up to 7500 MHz, which is higher than that of 93.3% of processors and equal to 3.7% of processors.
Max memory speed (JEDEC)
What it is: The highest official RAM speed the processor supports under standard JEDEC settings, before any memory overclocking profiles are applied.
When it matters: When officially supported stock RAM speed matters more than XMP, EXPO, or manual memory tuning.

Importance: MEDIUM

Good value: >=5600 MHz

LPDDR5X-7500 MHz
AMD Ryzen 7 7840U supports JEDEC memory speeds up to LPDDR5X-7500 MHz, which is higher than that of 94.2% of processors and equal to 3.1% of processors.
Max memory speed (XMP / EXPO)
What it is: The highest memory speed supported through XMP or EXPO profiles.
When it matters: When you want faster RAM through memory profiles.

Importance: MEDIUM

Good value: >=5200 MHz

N/A
Maximum memory capacity
What it is: The largest total amount of memory officially supported by the processor.
When it matters: When you plan a system with very large RAM capacity.

Importance: HIGH

Good value: >=128 GB

256 GB
AMD Ryzen 7 7840U supports up to 256 GB of memory, which is more than 89.4% of processors and equal to 8.3% of processors.
Show more
Integrated graphics
What it is: Includes built-in graphics, so the system can output video without a separate graphics card.
When it matters: When you want the PC to work without a dedicated GPU, or you are building an office, media, compact, or troubleshooting-friendly system.

Importance: HIGH

yes
AMD Ryzen 7 7840U includes integrated graphics. 87.6% of processors include integrated graphics.
Integrated GPU model
What it is: The model name of the integrated graphics processor, if present.
When it matters: When you plan to use the CPU's built-in graphics.

Importance: MEDIUM

Radeon 780M
AMD Ryzen 7 7840U uses the Radeon 780M integrated GPU, which is more advanced than that in 95.8% of processors and equal to that in 1.9% of processors.
Integrated GPU execution units
What it is: The number of execution units available in the integrated graphics part of the processor.
When it matters: When you plan to rely on built-in graphics and want a better sense of its light gaming, display, or media capability.

Importance: MEDIUM

Good value: >=24

12
AMD Ryzen 7 7840U has 12 GPU execution units, which is fewer than 62.8% of processors and equal to 9.2% of processors.
Integrated GPU base frequency
What it is: The base operating frequency of the integrated GPU.
When it matters: When integrated graphics performance matters to you.

Importance: MEDIUM

Good value: >=350 MHz

800 MHz
AMD Ryzen 7 7840U has an integrated GPU clock of 800 MHz which is higher than that of 90.8% of processors and equal to that of 7% of processors.
Integrated media encoders/decoders
What it is: The hardware media formats the processor can encode or decode directly.
When it matters: When you stream, edit video, or rely on hardware media acceleration.

Importance: LOW

H.264 (HW decode/encode), H.265 (HW decode/encode), VP9 (HW decode/encode), AV1 (HW decode/encode)
AMD Ryzen 7 7840U supports H.264 (HW decode/encode), H.265 (HW decode/encode), VP9 (HW decode/encode), AV1 (HW decode/encode) media codecs, which is broader support than 94.6% of processors and equal to 1.9% of processors.
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TDP (Thermal design power)
What it is: The rated thermal design power, which gives a general idea of cooling and power needs.
When it matters: When you choose a cooler or build in a tighter case.

Importance: HIGH

Good value: <30 W

28 W
AMD Ryzen 7 7840U has a TDP of 28 W which is lower than that of 67.2% of processors and equal to that of 7.2% of processors.
Base power (PL1)
What it is: The sustained power target used for longer CPU loads.
When it matters: When you choose cooling and power delivery for sustained workloads.

Importance: MEDIUM

Good value: <30 W

28 W
AMD Ryzen 7 7840U has a base power of 28 W which is lower than that of 67.2% of processors and equal to that of 6.8% of processors.
Boost power (PL2)
What it is: The short-term boost power limit the processor may draw under heavier turbo loads.
When it matters: When you size cooling and power delivery for peak turbo behavior.

Importance: MEDIUM

Good value: <50 W

?
Tau (power duration limit)
What it is: The time limit the CPU can stay at higher boost power before dropping toward sustained power.
When it matters: When you want to understand turbo behavior under longer loads.

Importance: MEDIUM

Good value: <=28 s

N/A
Configurable TDP
What it is: Allows the processor to run in alternate power modes instead of being fixed to one default TDP target.
When it matters: When you want more control over heat, noise, and power draw in compact systems, quieter builds, or thermally limited machines.

Importance: LOW

yes
AMD Ryzen 7 7840U supports configurable TDP. 52.9% of processors support configurable TDP.
cTDP: 15-30 W
Show more

AMD Ryzen 7 7840U vs the average processor

  • 18.6% higher boost clock
    AMD Ryzen 7 7840U has a higher boost clock speed than the average processor (5.1 GHz vs 4.3 GHz). The average processor reaches boost clock speed of 4.3 GHz.
    What it is: The highest clock speed the processor can reach under boost conditions.
    When it matters: When you care about peak speed in short bursts.

    Importance: HIGH

    Good value: >4.7 GHz

    AMD Ryzen 7 7840U has a higher boost clock speed than the average processor (5.1 GHz vs 4.3 GHz). The average processor reaches boost clock speed of 4.3 GHz.5.1 GHz vs 4.3 GHz
  • 42.4% better single-core performance
    AMD Ryzen 7 7840U has a higher PassMark single-core score than the average processor (3,537 vs 2,483). The average processor scores 2,483 in PassMark single-core.
    What it is: A benchmark score that reflects single-core CPU performance.
    When it matters: When you care about responsiveness in lighter or older software.

    Importance: HIGH

    Good value: >3200

    AMD Ryzen 7 7840U has a higher PassMark single-core score than the average processor (3,537 vs 2,483). The average processor scores 2,483 in PassMark single-core.3,537 vs 2,483
  • 2.21x higher multi-core score
    AMD Ryzen 7 7840U has a higher Geekbench 6 multi-core score than the average processor (10,584 vs 4,793). The average processor scores 4,793 in Geekbench 6 multi-core.
    What it is: A Geekbench 6 score that reflects multi-core CPU performance in mixed modern workloads.
    When it matters: When you want a quick picture of multi-core speed in everyday mixed workloads, multitasking, and broadly optimized software.

    Importance: HIGH

    Good value: >8500

    AMD Ryzen 7 7840U has a higher Geekbench 6 multi-core score than the average processor (10,584 vs 4,793). The average processor scores 4,793 in Geekbench 6 multi-core.10,584 vs 4,793
  • 53.9% higher single-core score
    AMD Ryzen 7 7840U has a higher Geekbench 6 single-core score than the average processor (2,264 vs 1,471). The average processor scores 1,471 in Geekbench 6 single-core.
    What it is: A Geekbench 6 score that reflects single-core CPU performance in mixed modern workloads.
    When it matters: When you care about snappy everyday performance in lighter apps, browsing, office work, or tasks that do not scale well across many cores.

    Importance: HIGH

    Good value: >2000

    AMD Ryzen 7 7840U has a higher Geekbench 6 single-core score than the average processor (2,264 vs 1,471). The average processor scores 1,471 in Geekbench 6 single-core.2,264 vs 1,471
  • More advanced microarchitecture
    AMD Ryzen 7 7840U uses a more advanced microarchitecture than the average processor (Phoenix vs Kaby Lake).
    What it is: The internal core-design codename used for this processor generation.
    When it matters: When you are comparing CPUs at a deeper design level and want to identify the exact architecture behind marketing names.

    Importance: LOW

    AMD Ryzen 7 7840U uses a more advanced microarchitecture than the average processor (Phoenix vs Kaby Lake).Phoenix vs Kaby Lake
  • 2.32x higher PassMark score
    AMD Ryzen 7 7840U has a higher PassMark benchmark score than the average processor (24,393 vs 10,532.5). The average processor scores 10,532.5 in PassMark benchmark.
    What it is: A benchmark score that gives a broad idea of overall processor performance.
    When it matters: When you want a quick overall performance comparison.

    Importance: HIGH

    Good value: >19000

    AMD Ryzen 7 7840U has a higher PassMark benchmark score than the average processor (24,393 vs 10,532.5). The average processor scores 10,532.5 in PassMark benchmark.24,393 vs 10,532.5
  • 4x more memory capacity
    AMD Ryzen 7 7840U has more maximum memory capacity than the average processor (256 GB vs 64 GB). The average processor supports 64 GB of memory.
    What it is: The largest total amount of memory officially supported by the processor.
    When it matters: When you plan a system with very large RAM capacity.

    Importance: HIGH

    Good value: >=128 GB

    AMD Ryzen 7 7840U has more maximum memory capacity than the average processor (256 GB vs 64 GB). The average processor supports 64 GB of memory.256 GB vs 64 GB
  • 2.56x higher memory speed
    AMD Ryzen 7 7840U has a higher maximum memory speed than the average processor (7,500 MHz vs 2,933 MHz). The average processor supports memory speed of 2,933 MHz.
    What it is: The highest official memory speed supported by the processor.
    When it matters: When you choose RAM and want to know the supported speed ceiling.

    Importance: HIGH

    Good value: >=4800 MHz

    AMD Ryzen 7 7840U has a higher maximum memory speed than the average processor (7,500 MHz vs 2,933 MHz). The average processor supports memory speed of 2,933 MHz.7500 MHz vs 2933 MHz
  • 3 year/s newer release date
    AMD Ryzen 7 7840U has a newer release date than the average processor (2,023 vs 2,020).
  • Includes crypto acceleration
    AMD Ryzen 7 7840U includes crypto acceleration, the average processor does not.
  • 18.6% higher boost clock
    AMD Ryzen 7 7840U has a higher boost clock speed than the average processor (5.1 GHz vs 4.3 GHz). The average processor reaches boost clock speed of 4.3 GHz.
  • 42.4% better single-core performance
    AMD Ryzen 7 7840U has a higher PassMark single-core score than the average processor (3,537 vs 2,483). The average processor scores 2,483 in PassMark single-core.
  • 2.21x higher multi-core score
    AMD Ryzen 7 7840U has a higher Geekbench 6 multi-core score than the average processor (10,584 vs 4,793). The average processor scores 4,793 in Geekbench 6 multi-core.
  • 53.9% higher single-core score
    AMD Ryzen 7 7840U has a higher Geekbench 6 single-core score than the average processor (2,264 vs 1,471). The average processor scores 1,471 in Geekbench 6 single-core.
  • 2.32x higher PassMark score
    AMD Ryzen 7 7840U has a higher PassMark benchmark score than the average processor (24,393 vs 10,532.5). The average processor scores 10,532.5 in PassMark benchmark.
  • 8 more CPU threads
    AMD Ryzen 7 7840U has more CPU threads than the average processor (16 vs 8). The average processor has 8 CPU threads.
  • 2 more CPU cores
    AMD Ryzen 7 7840U has more CPU cores than the average processor (8 vs 6). The average processor has 6 CPU cores.
  • More advanced microarchitecture
    AMD Ryzen 7 7840U uses a more advanced microarchitecture than the average processor (Phoenix vs Kaby Lake).
  • 66.7% smaller process node
    AMD Ryzen 7 7840U has a lower process node than the average processor (4 nm vs 12 nm). The average processor uses a process node of 12 nm.
  • 3.2x larger L2 cache
    AMD Ryzen 7 7840U has a higher L2 cache than the average processor (8 MB vs 2.5 MB). The average processor has L2 cache of 2.5 MB.
  • More advanced foundry
    AMD Ryzen 7 7840U uses a more advanced foundry process than the average processor (TSMC 4 nm vs Intel 14 nm).
  • 2x more L2 per core
    AMD Ryzen 7 7840U has more L2 cache per core than the average processor (1 MB/core vs 0.5 MB/core). The average processor provides 0.5 MB/core of L2 cache per core.
  • 5.05x more transistors
    AMD Ryzen 7 7840U has more transistors than the average processor (25 billion vs 4.95 billion). The average processor has 4.95 billion transistors.
  • 2x larger L3 cache
    AMD Ryzen 7 7840U has a higher L3 cache than the average processor (16 MB vs 8 MB). The average processor has L3 cache of 8 MB.
  • 16.7% more L3 per core
    AMD Ryzen 7 7840U has more L3 cache per core than the average processor (2 MB/core vs 1.714 MB/core). The average processor provides 1.714 MB/core of L3 cache per core.
  • 33.3% larger L1 cache
    AMD Ryzen 7 7840U has a higher L1 cache than the average processor (512 KB vs 384 KB). The average processor has L1 cache of 384 KB.
  • 2.56x higher memory speed
    AMD Ryzen 7 7840U has a higher maximum memory speed than the average processor (7,500 MHz vs 2,933 MHz). The average processor supports memory speed of 2,933 MHz.
  • 4x more memory capacity
    AMD Ryzen 7 7840U has more maximum memory capacity than the average processor (256 GB vs 64 GB). The average processor supports 64 GB of memory.
  • 95.6% higher memory bandwidth
    AMD Ryzen 7 7840U has a higher memory bandwidth than the average processor (89.6 GB/s vs 45.8 GB/s). The average processor offers memory bandwidth of 45.8 GB/s.
  • Newer PCIe version
    AMD Ryzen 7 7840U supports a newer PCIe version than the average processor (4 vs 3.0).
  • 4 more PCIe lanes
    AMD Ryzen 7 7840U has more PCIe lanes than the average processor (20 vs 16). The average processor offers 16 PCIe lanes.
  • Newer DDR support
    AMD Ryzen 7 7840U supports a newer DDR generation than the average processor (DDR5 vs DDR4).
  • Better integrated GPU
    AMD Ryzen 7 7840U uses a better integrated GPU than the average processor (Radeon 780M vs Intel UHD Graphics 630).
  • 2.29x higher GPU clock speed
    AMD Ryzen 7 7840U has a higher integrated GPU frequency than the average processor (800 MHz vs 350 MHz). The average processor has integrated GPU frequency of 350 MHz.
  • 1 more supported displays
    AMD Ryzen 7 7840U has more supported displays than the average processor (4 vs 3). The average processor supports 3 displays.
  • 37.8% lower base power
    AMD Ryzen 7 7840U has a lower base power draw than the average processor (28 W vs 45 W). The average processor has a base power draw of 45 W.
  • 37.8% lower TDP
    AMD Ryzen 7 7840U has a lower TDP than the average processor (28 W vs 45 W). The average processor has a TDP of 45 W.

Total
Platform
Performance
Cache & Architecture
Memory & PCIe
Integrated Graphics
Power & Thermal
  • Older TPM support
    AMD Ryzen 7 7840U supports an older TPM version than the average processor (fTPM 2.0 vs PTT 2.0).
  • 73.8% weaker multi-core performance
    AMD Ryzen 7 7840U has a lower multi-core performance than the average processor (728 vs 2,783). The average processor scores 2,783 in Cinebench R20 multi-core.
  • Limited PCIe bifurcation
    AMD Ryzen 7 7840U supports less flexible PCIe bifurcation than the average processor (x4 vs x16, x8/x8).
  • 50% fewer GPU execution units
    AMD Ryzen 7 7840U has fewer GPU execution units than the average processor (12 vs 24). The average processor has 24 GPU execution units.
  • 73.8% weaker multi-core performance
    AMD Ryzen 7 7840U has a lower multi-core performance than the average processor (728 vs 2,783). The average processor scores 2,783 in Cinebench R20 multi-core.
    What it is: A Cinebench R20 score that reflects how well the processor handles long, heavy rendering workloads across many cores.
    When it matters: When you care about sustained multi-core performance in rendering, compiling, heavy creation work, or productivity workloads that use many threads.

    Importance: HIGH

    Good value: >4700

    AMD Ryzen 7 7840U has a lower multi-core performance than the average processor (728 vs 2,783). The average processor scores 2,783 in Cinebench R20 multi-core.728 vs 2,783
  • 3.36x more expensive
    AMD Ryzen 7 7840U is more expensive than the average processor (£840 vs £250).
    AMD Ryzen 7 7840U is more expensive than the average processor (£840 vs £250).£840 vs £250
  • Limited PCIe bifurcation
    AMD Ryzen 7 7840U supports less flexible PCIe bifurcation than the average processor (x4 vs x16, x8/x8).
    What it is: The supported ways PCIe lanes can be split across multiple slots or devices.
    When it matters: When you plan multiple expansion cards or NVMe adapters.

    Importance: LOW

    AMD Ryzen 7 7840U supports less flexible PCIe bifurcation than the average processor (x4 vs x16, x8/x8).x4 vs x16, x8/x8
  • Older TPM support
    AMD Ryzen 7 7840U supports an older TPM version than the average processor (fTPM 2.0 vs PTT 2.0).
    What it is: The kind of TPM security support associated with the processor or its platform.
    When it matters: When operating-system requirements, device encryption, enterprise security, or platform trust features matter.

    Importance: LOW

    AMD Ryzen 7 7840U supports an older TPM version than the average processor (fTPM 2.0 vs PTT 2.0).fTPM 2.0 vs PTT 2.0
  • 50% fewer GPU execution units
    AMD Ryzen 7 7840U has fewer GPU execution units than the average processor (12 vs 24). The average processor has 24 GPU execution units.
    What it is: The number of execution units available in the integrated graphics part of the processor.
    When it matters: When you plan to rely on built-in graphics and want a better sense of its light gaming, display, or media capability.

    Importance: MEDIUM

    Good value: >=24

    AMD Ryzen 7 7840U has fewer GPU execution units than the average processor (12 vs 24). The average processor has 24 GPU execution units.12 vs 24
  • 4.4% worse value for money
    AMD Ryzen 7 7840U has worse value for money than the average processor (6.10 vs 6.367).
    What it is: An indicator that combines the processor's overall rating with its cost.
    When it matters: When you are looking for a processor with a good balance between performance, efficiency, and price.
    AMD Ryzen 7 7840U has worse value for money than the average processor (6.10 vs 6.367).6.1 vs 6.37
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Performance
Memory & PCIe
Integrated Graphics

Graphic comparison of AMD Ryzen 7 7840U and other processors

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Third-party reviews

What customers like about AMD Ryzen 7 7840U?

  • Excellent multi-threaded performance, significantly outperforming previous generations and many Intel competitors.
  • Integrated Radeon 780M graphics provide solid entry-level 1080p gaming performance.
  • High power efficiency under load, offering a strong performance-per-watt ratio.
  • Native support for AVX-512 instructions, which provides a major boost for scientific and heavy workloads.
  • Superior Linux compatibility and performance compared to Intel hybrid architectures.
  • Includes dedicated Ryzen AI hardware for accelerating artificial intelligence tasks.

What customers dislike about AMD Ryzen 7 7840U?

  • Reports of higher-than-expected idle power consumption in some laptop models, which can impact standby battery life.
  • Variable battery life results across different manufacturers, with some users reporting less endurance than expected.
  • Generates significant heat and fan noise when fully utilized or during intense gaming sessions.
  • Integrated graphics performance is highly dependent on system RAM speed and cooling solutions.
  • Limited availability in some regions compared to more common Intel-based alternatives.

Expert reviews

P
phoronix.com
18/08/2023
AMD Ryzen 7 7840U Windows 11 vs. Linux CPU Performance

Testing of the AMD Ryzen 7 7840U on an Acer Swift Edge 16 shows Linux (Ubuntu 22.04 LTS) generally outperforming Windows 11 by roughly 13% across 75 benchmarks. While Linux holds a significant lead, this gap narrows to about 4% when using the Linux 6.5 kernel due to the default AMD Inception security mitigation, which imposes a performance penalty. Key advantages for the 7840U...Read more

P
phoronix.com
06/07/2023
AMD Ryzen 7 7840U Performance Benchmarks On Linux: Great Uplift For Zen 4 Laptops(arstechnica.com) | October 03, 2023 | Review: Framework Laptop final...

The Phoronix review of the AMD Ryzen 7 7840U highlights the 4nm Zen 4 processor's exceptional performance-per-watt and significant generational leap on Linux, outperforming previous Ryzen 7 PRO 6850U and Intel Core i7-1280P chips. Key advantages include massive speed-ups in heavy workloads like TensorFlow due to AVX-512 support, without a power penalty at 28W, avoiding the hybrid...Read more

N
notebookcheck.net
03/10/2023
Framework Laptop 13.5 Ryzen 7 7840U review: So much better than the Intel version

The Framework Laptop 13 with the AMD Ryzen 7 7840U offers superior efficiency, battery life, and graphics performance compared to its Intel-based predecessors, making it the superior choice for users. The notebook highlights the Radeon 780M iGPU, excellent 3:2 matte display, and improved hinge, though it notes persistent issues with high fan noise under load and weak speakers. While...Read more

S
servethehome.com
12/12/2023
ASRock Industrial 4x4 BOX-7840U Review AMD Powered NUC Form Factor

The ASRock Industrial 4x4 BOX-7840U is a high-performance, compact mini PC featuring an AMD Ryzen 7 7840U "Phoenix" processor, offering strong 8-core, 16-thread performance, Radeon 780M integrated graphics, and dual USB4 ports. Key pros include excellent multi-threaded performance for tasks like Linux compiles, extensive connectivity supporting four 4K displays, and the reliability...Read more

S
servethehome.com
12/12/2023
ASRock Industrial 4x4 BOX-7840U Review AMD Powered NUC Form Factor

The ServeTheHome review of the ASRock Industrial 4X4 BOX-7840U highlights a high-performance mini PC featuring the AMD Ryzen 7 7840U "Phoenix" APU and Radeon 780M graphics, offering excellent efficiency and capable entry-level gaming. Key pros include dual USB4 ports, support for up to four 4K displays, and easy internal access, while cons focus on the scratch-prone glossy chassis,...Read more

N
notebookcheck.biz
23/09/2023
HP EliteBook 845 G10 Review: Professional Laptop with AMD Ryzen 7 7840U

The HP EliteBook 845 G10 with the AMD Ryzen 7 7840U is lauded as a top-tier business laptop, featuring a robust 14-inch aluminum chassis and a efficient 400-nit display. The 7840U processor provides strong performance while operating quietly and efficiently, with 16GB of DDR5-5600 RAM and an excellent, quiet keyboard enhancing the user experience. Key advantages include extensive...Read more

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clubic.com
27/10/2023
Framework Laptop: Zen 4 and away we go? We installed an AMD chip in our unit

The Clubic review of the Framework Laptop 13 (AMD Ryzen 7040 edition) highlights a significant performance leap, with the Ryzen 7 7840U and Radeon 780M graphics offering exceptional power efficiency and capable gaming performance. Key pros include the successful modular upgrade, a high-quality 3:2 screen, and a superior keyboard, though battery life remains behind competitors, and...Read more

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notebookcheck.biz
10/03/2026
Framework 13.5 Ryzen 7 7840U Review: Far Superior to the Intel Version", "Framework 13.5 Ryzen 7 7840U Test: Much Better Than the Intel Model

The Framework Laptop 13.5 with AMD Ryzen 7 7840U significantly outperforms previous Intel models, offering superior multi-thread performance and roughly double the graphics power via the Radeon 780M GPU. Key advantages include vastly improved power efficiency, with web browsing lasting over three hours longer than the Core i7-1360P version, making it a better option for sustained,...Read more

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notebookcheck.biz
20/03/2024
Minisforum Mercury EM780 Review: Ultra-Compact Mini-PC with Ryzen 7 7840U

The Minisforum Mercury EM780 is an ultra-compact 0.25-liter mini PC featuring an AMD Ryzen 7 7840U processor, 32GB LPDDR5 RAM, and a 1TB PCIe 4.0 SSD, offering high performance in a palm-sized chassis. Its "Cold Wave 2.0" cooling system enables stable operation, while integrated Radeon 780M graphics allow for competent 1080p gaming and efficient productivity tasks. However, the...Read more

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noticias3d.com
20/09/2023
AMD Ryzen 7840U in the Acer Swift Edge 16 Review: Performance Benchmarks

The Acer Swift Edge 16, reviewed by Noticias3D, is a 16-inch ultraportable lauded for combining a lightweight magnesium-aluminum chassis (1.23 kg) with a vibrant 3.2K 120Hz OLED display. It features the AMD Ryzen 7 7840U processor and Radeon 780M graphics, making it highly capable for productivity. Notable pros include excellent connectivity (USB4, Wi-Fi 7) and strong multi-core...Read more

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tweakers.net
03/10/2023
Framework Laptop Comparison - Review: What the Latest Ryzen 7 7840U Version Has to Offer

The Framework Laptop is a pioneer in modular design, focusing heavily on repairability, user customization, and sustainability through an "Expansion Card" system for hot-swappable ports and easily replaceable components. The device is highly regarded for its 3:2 display, tactile keyboard, and strong Linux support, which are major pros for power users and DIY enthusiasts. However,...Read more

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tweakers.net
17/04/2025
Framework Laptop 13 Zen 5 Upgrade: The Ryzen 7 isn't what it used to be (Tested against Ryzen 7 7840U)

The Framework Laptop 13 with AMD Ryzen AI 7 350 ("Kraken Point") offers improved thermals, acoustic performance, and a new 50 TOPS NPU for AI capabilities. However, the upgrade presents limited CPU gains over Zen 4 and actually features a slightly slower integrated GPU, resulting in a minor "sidegrade" for existing users. Key cons include lack of substantial performance improvement,...Read more

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notebookcheck.nl
03/10/2023
Framework Laptop 13 Ryzen 7 7840U review: So much better than the Intel version

The Notebookcheck review of the Framework Laptop 13.5 (Ryzen 7 7840U) highlights it as a superior alternative to previous Intel models, driven by the AMD Zen 4 platform's exceptional efficiency and performance. Key advantages include nearly double the graphics performance, improved battery life, a sturdy 3:2 display, and maintained modular repairability. However, the device faces...Read more

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tweakers.net
24/06/2024
Framework Laptop 16 - Now you can truly customize everything (Including 7840U benchmarks)

The Tweakers review of the Framework Laptop 16 hails the device as a major step in modularity, offering high-performance AMD Ryzen processors (7840HS/7940HS) and a vibrant 165Hz QHD+ display. Key innovations include a swappable Expansion Bay for discrete GPU upgrades and a modular input deck, allowing users to customize ports and peripherals easily. The laptop earns high praise for...Read more

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N
notebookcheck.nl
11/08/2023
Acer Swift Edge SFE16-43 Review

The Acer Swift Edge SFE16-43 is a remarkably lightweight 16-inch ultrabook that prioritises portability and display quality, featuring a 16-inch 3.2K 120Hz OLED display. Weighing approximately 1.23 kg and measuring just 12.9 mm thick, it stands out for its form factor. The device offers solid performance with the AMD Ryzen 7 7840U processor, though the thin chassis leads to thermal...Read more

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T
tweakers.net
06/03/2024
Minisforum Mercury EM780 - Teeny-tiny PC gets Zen 4

The Minisforum Mercury EM780 is an ultra-compact 0.25-liter PC featuring the AMD Ryzen 7 7840U (Zen 4) processor and Radeon 780M graphics, offering significant performance boosts for its size. The device features robust connectivity, including dual USB4 ports and active cooling, though it faces a high price point and uses soldered, non-upgradeable LPDDR5-6400 RAM. While the SSD is...Read more

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