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AMD Ryzen 5 7645HX Review | 78 Data compared

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  • Avg. price in UK: ~£180
  • Avg. price in US: ~$180
  • PassMark benchmark result: 26149
  • N. of physical cores: 6
  • CPU boost clock speed: 5.0 GHz

AMD Ryzen 5 7645HX review. Compare 78 technical specifications and user reviews to see how it ranks among processors and if it is worth buying.

6.8

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%

6.8

Technical Score

10.0%

?

User score

Good
6.8

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%

6.3

Performance

18.0%

7.7

Cache & Architecture

10.0%

8.1

Memory & PCIe

7.0%

6.2

Power & Thermal

4.0%

9.0

Platform

1.0%

7.9

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

  • 6.8
    Gaming

    Score components:

    30.0%

    7.4

    PassMark single-core benchmark score

    25.0%

    7.6

    Geekbench 6 single-core benchmark score

    20.0%

    7.6

    CPU boost clock speed

    17.0%

    5.5

    L3 cache

    8.0%

    2.6

    N. of physical cores

  • 4.5
    Video editing

    Score components:

    45.0%

    5.3

    Geekbench 6 multi-core benchmark score

    20.0%

    2.6

    N. of physical cores

    20.0%

    4.0

    CPU threads

    15.0%

    5.5

    L3 cache

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Best prices in UK

    N/A~ £180

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 5 7645HX is a high-performance 'Dragon Range' laptop processor based on the Zen 4 architecture, featuring 6 cores and 12 threads with a base clock of 4.0 GHz and a boost clock of up to 5.0 GHz. Manufactured on a 5nm process, it includes 32MB of L3 cache, supports DDR5-5200 memory, and provides 28 PCIe 5.0 lanes for high-speed connectivity. Its main advantages include exceptional single-threaded performance for gaming and professional workloads, alongside a flexible TDP of 55W that can be configured up to 75W for increased power. However, it lacks USB4 support and features a basic Radeon 610M integrated GPU, which may require a dedicated graphics card for demanding visual tasks.

Technical Specifications of processor AMD Ryzen 5 7645HX

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

6.8
AMD Ryzen 5 7645HX has a technical score of 6.81 points, which is higher than that of 80.7% 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 5 7645HX 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%

6.8

Overall score

40.0%

9.6

Price

7.6
AMD Ryzen 5 7645HX has a quality-to-price ratio of 7.6 points, which is higher than 87.7% 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 5 7645HX 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.
laptop
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

FL1
AMD Ryzen 5 7645HX uses the FL1 CPU socket, which is older than that of 60.9% of processors and equal to that of 1.1% 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

X870E, X870, B850, B840, X670E, X670, B650E, B650, A620
AMD Ryzen 5 7645HX supports X870E, X870, B850, B840, X670E, X670, B650E, B650, A620 chipsets, which is broader compatibility than 91.8% of processors and equal to that of 3.4% of processors.
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 5 7645HX 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+

6
AMD Ryzen 5 7645HX has 6 CPU cores, which is more than 49.9% of processors and equal to 13.4% 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+

12
AMD Ryzen 5 7645HX offers 12 CPU threads, which is more than 55.1% of processors and equal to 14.1% 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 5 7645HX 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

5.0 GHz
AMD Ryzen 5 7645HX reaches a boost clock of 5.0 GHz which is higher than that of 80.3% of processors and equal to that of 5.7% 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

6 x 4.0 GHz
AMD Ryzen 5 7645HX has a base clock of 6x4.0 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

5 nm
AMD Ryzen 5 7645HX uses a 5 nm process node, which is more advanced than that of 85.1% of processors and equal to that of 3.2% 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 5 nm
AMD Ryzen 5 7645HX is built on the TSMC 5 nm foundry process, which is more advanced than that of 83.7% of processors and equal to that of 3.2% 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

32 MB
AMD Ryzen 5 7645HX has an L3 cache of 32 MB which is larger than that of 89.6% of processors and equal to that of 2.6% 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

6 MB
AMD Ryzen 5 7645HX has an L2 cache of 6 MB which is larger than that of 67% of processors and equal to that of 4% 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

384 KB
AMD Ryzen 5 7645HX has an L1 cache of 384 KB which is larger than that of 45% of processors and equal to that of 15.8% of processors.
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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 5 7645HX 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

5,200 MHz
AMD Ryzen 5 7645HX supports memory speeds up to 5200 MHz, which is higher than that of 72.1% of processors and equal to 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

DDR5-5200 MHz
AMD Ryzen 5 7645HX supports JEDEC memory speeds up to DDR5-5200 MHz, which is higher than that of 74.1% of processors and equal to 5.2% 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

5,200 MHz
AMD Ryzen 5 7645HX supports XMP/EXPO memory speeds up to 5200 MHz, which is higher than that of 94.5% of processors and equal to 1.5% of processors.
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

64 GB
AMD Ryzen 5 7645HX supports up to 64 GB of memory, which is more than 28.4% of processors and equal to 27.6% 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 5 7645HX 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 610M
AMD Ryzen 5 7645HX uses the Radeon 610M integrated GPU, which is more advanced than that in 89.3% 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

2
AMD Ryzen 5 7645HX has 2 GPU execution units, which is fewer than 95.6% of processors and equal to 4.4% 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

400 MHz
AMD Ryzen 5 7645HX has an integrated GPU clock of 400 MHz which is higher than that of 73.3% of processors and equal to that of 8% 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), AV1 (HW decode)
AMD Ryzen 5 7645HX supports H.264 (HW decode/encode), H.265 (HW decode/encode), VP9 (HW decode), AV1 (HW decode) media codecs, which is broader support than 81.6% of processors and equal to 3.2% of processors.
Show more
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

55 W
AMD Ryzen 5 7645HX has a TDP of 55 W which is higher than that of 63.9% of processors and equal to that of 4.2% 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

55 W
AMD Ryzen 5 7645HX has a base power of 55 W which is higher than that of 64.1% of processors and equal to that of 4.1% 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

75 W
AMD Ryzen 5 7645HX has a boost power of 75 W which is higher than that of 53.7% of processors and equal to that of 0.8% of processors.
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 5 7645HX supports configurable TDP. 52.9% of processors support configurable TDP.
cTDP: 45-75 W
Show more

AMD Ryzen 5 7645HX vs the average processor

  • 55.9% better single-core performance
    AMD Ryzen 5 7645HX has a higher PassMark single-core score than the average processor (3,871 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 5 7645HX has a higher PassMark single-core score than the average processor (3,871 vs 2,483). The average processor scores 2,483 in PassMark single-core.3,871 vs 2,483
  • 76.3% higher single-core score
    AMD Ryzen 5 7645HX has a higher Geekbench 6 single-core score than the average processor (2,593 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 5 7645HX has a higher Geekbench 6 single-core score than the average processor (2,593 vs 1,471). The average processor scores 1,471 in Geekbench 6 single-core.2,593 vs 1,471
  • More advanced microarchitecture
    AMD Ryzen 5 7645HX uses a more advanced microarchitecture than the average processor (Dragon Range 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 5 7645HX uses a more advanced microarchitecture than the average processor (Dragon Range vs Kaby Lake).Dragon Range vs Kaby Lake
  • 12 more PCIe lanes
    AMD Ryzen 5 7645HX has more PCIe lanes than the average processor (28 vs 16). The average processor offers 16 PCIe lanes.
    What it is: The number of PCIe lanes provided directly by the processor.
    When it matters: When you connect fast GPUs, SSDs, or expansion cards.

    Importance: HIGH

    Good value: >=20

    AMD Ryzen 5 7645HX has more PCIe lanes than the average processor (28 vs 16). The average processor offers 16 PCIe lanes.28 vs 16
  • 2.34x higher multi-core score
    AMD Ryzen 5 7645HX has a higher Geekbench 6 multi-core score than the average processor (11,216 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 5 7645HX has a higher Geekbench 6 multi-core score than the average processor (11,216 vs 4,793). The average processor scores 4,793 in Geekbench 6 multi-core.11,216 vs 4,793
  • Newer PCIe version
    AMD Ryzen 5 7645HX supports a newer PCIe version than the average processor (5 vs 3.0).
    What it is: The newest PCIe generation the processor can use directly for graphics cards, SSDs, and other high-speed expansion devices.
    When it matters: When you want support for newer GPUs or SSDs, or more bandwidth for high-speed expansion hardware.

    Importance: HIGH

    Good value: 4.0

    AMD Ryzen 5 7645HX supports a newer PCIe version than the average processor (5 vs 3.0).5.0 vs 3.0
  • 2.48x higher PassMark score
    AMD Ryzen 5 7645HX has a higher PassMark benchmark score than the average processor (26,149 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 5 7645HX has a higher PassMark benchmark score than the average processor (26,149 vs 10,532.5). The average processor scores 10,532.5 in PassMark benchmark.26,149 vs 10,532.5
  • Unlocked for overclocking
    AMD Ryzen 5 7645HX has an unlocked multiplier, the average processor does not.
    What it is: Has an unlocked CPU multiplier, which makes manual CPU overclocking much easier on supported platforms.
    When it matters: When you plan to push clock speeds beyond stock settings instead of leaving the processor completely at default behavior.

    Importance: MEDIUM

    AMD Ryzen 5 7645HX has an unlocked multiplier, the average processor does not.
  • 3 year/s newer release date
    AMD Ryzen 5 7645HX has a newer release date than the average processor (2,023 vs 2,020).
  • 55.9% better single-core performance
    AMD Ryzen 5 7645HX has a higher PassMark single-core score than the average processor (3,871 vs 2,483). The average processor scores 2,483 in PassMark single-core.
  • 76.3% higher single-core score
    AMD Ryzen 5 7645HX has a higher Geekbench 6 single-core score than the average processor (2,593 vs 1,471). The average processor scores 1,471 in Geekbench 6 single-core.
  • 2.34x higher multi-core score
    AMD Ryzen 5 7645HX has a higher Geekbench 6 multi-core score than the average processor (11,216 vs 4,793). The average processor scores 4,793 in Geekbench 6 multi-core.
  • 2.48x higher PassMark score
    AMD Ryzen 5 7645HX has a higher PassMark benchmark score than the average processor (26,149 vs 10,532.5). The average processor scores 10,532.5 in PassMark benchmark.
  • Unlocked for overclocking
    AMD Ryzen 5 7645HX has an unlocked multiplier, the average processor does not.
  • 16.3% higher boost clock
    AMD Ryzen 5 7645HX has a higher boost clock speed than the average processor (5 GHz vs 4.3 GHz). The average processor reaches boost clock speed of 4.3 GHz.
  • 4 more CPU threads
    AMD Ryzen 5 7645HX has more CPU threads than the average processor (12 vs 8). The average processor has 8 CPU threads.
  • 12 higher clock multiplier
    AMD Ryzen 5 7645HX has a higher clock multiplier than the average processor (40 vs 28). The average processor has a clock multiplier of 28.
  • More advanced microarchitecture
    AMD Ryzen 5 7645HX uses a more advanced microarchitecture than the average processor (Dragon Range vs Kaby Lake).
  • 4x larger L3 cache
    AMD Ryzen 5 7645HX has a higher L3 cache than the average processor (32 MB vs 8 MB). The average processor has L3 cache of 8 MB.
  • 3.11x more L3 per core
    AMD Ryzen 5 7645HX has more L3 cache per core than the average processor (5.3 MB/core vs 1.714 MB/core). The average processor provides 1.714 MB/core of L3 cache per core.
  • 58.3% smaller process node
    AMD Ryzen 5 7645HX has a lower process node than the average processor (5 nm vs 12 nm). The average processor uses a process node of 12 nm.
  • More advanced foundry
    AMD Ryzen 5 7645HX uses a more advanced foundry process than the average processor (TSMC 5 nm vs Intel 14 nm).
  • 2x more L2 per core
    AMD Ryzen 5 7645HX 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.
  • 2.4x larger L2 cache
    AMD Ryzen 5 7645HX has a higher L2 cache than the average processor (6 MB vs 2.5 MB). The average processor has L2 cache of 2.5 MB.
  • 12 more PCIe lanes
    AMD Ryzen 5 7645HX has more PCIe lanes than the average processor (28 vs 16). The average processor offers 16 PCIe lanes.
  • Newer PCIe version
    AMD Ryzen 5 7645HX supports a newer PCIe version than the average processor (5 vs 3.0).
  • Supports memory overclocking
    AMD Ryzen 5 7645HX supports memory overclocking, the average processor does not.
  • 81.7% higher memory bandwidth
    AMD Ryzen 5 7645HX has a higher memory bandwidth than the average processor (83.2 GB/s vs 45.8 GB/s). The average processor offers memory bandwidth of 45.8 GB/s.
  • 77.3% higher memory speed
    AMD Ryzen 5 7645HX has a higher maximum memory speed than the average processor (5,200 MHz vs 2,933 MHz). The average processor supports memory speed of 2,933 MHz.
  • Newer DDR support
    AMD Ryzen 5 7645HX supports a newer DDR generation than the average processor (DDR5 vs DDR4).
  • Better integrated GPU
    AMD Ryzen 5 7645HX uses a better integrated GPU than the average processor (Radeon 610M vs Intel UHD Graphics 630).
  • 1 more supported displays
    AMD Ryzen 5 7645HX has more supported displays than the average processor (4 vs 3). The average processor supports 3 displays.

Total
Overall
Platform
Performance
Cache & Architecture
Memory & PCIe
Integrated Graphics
  • Older TPM support
    AMD Ryzen 5 7645HX supports an older TPM version than the average processor (fTPM 2.0 vs PTT 2.0).
  • 91.7% fewer GPU execution units
    AMD Ryzen 5 7645HX has fewer GPU execution units than the average processor (2 vs 24). The average processor has 24 GPU execution units.
  • 22.2% higher base power
    AMD Ryzen 5 7645HX has a higher base power draw than the average processor (55 W vs 45 W). The average processor has a base power draw of 45 W.
  • 22.2% higher TDP
    AMD Ryzen 5 7645HX has a higher TDP than the average processor (55 W vs 45 W). The average processor has a TDP of 45 W.
  • 91.7% fewer GPU execution units
    AMD Ryzen 5 7645HX has fewer GPU execution units than the average processor (2 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 5 7645HX has fewer GPU execution units than the average processor (2 vs 24). The average processor has 24 GPU execution units.2 vs 24
  • 22.2% higher base power
    AMD Ryzen 5 7645HX has a higher base power draw than the average processor (55 W vs 45 W). The average processor has a base power draw of 45 W.
    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

    AMD Ryzen 5 7645HX has a higher base power draw than the average processor (55 W vs 45 W). The average processor has a base power draw of 45 W.55 W vs 45 W
  • Older TPM support
    AMD Ryzen 5 7645HX 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 5 7645HX supports an older TPM version than the average processor (fTPM 2.0 vs PTT 2.0).fTPM 2.0 vs PTT 2.0
  • 22.2% higher TDP
    AMD Ryzen 5 7645HX has a higher TDP than the average processor (55 W vs 45 W). The average processor has a TDP of 45 W.
    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

    AMD Ryzen 5 7645HX has a higher TDP than the average processor (55 W vs 45 W). The average processor has a TDP of 45 W.55 W vs 45 W
Total
Platform
Integrated Graphics
Power & Thermal

Graphic comparison of AMD Ryzen 5 7645HX and other processors

Attribute category
Attribute
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Third-party reviews

What customers like about AMD Ryzen 5 7645HX?

  • Excellent single-threaded performance due to high boost clocks (up to 5.0 GHz) and Zen 4 architecture.
  • Significant performance leap over previous generation 6-core chips like the Ryzen 5 6600H.
  • Support for modern connectivity standards including PCIe 5.0 and DDR5-5200 memory.
  • Ideal for gaming laptops as it provides sufficient core counts while leaving more thermal headroom for the GPU.
  • Efficient 5nm manufacturing process helps maintain high performance-per-watt compared to some competitors.

What customers dislike about AMD Ryzen 5 7645HX?

  • Higher power consumption at idle compared to predecessors and lower-tier mobile chips.
  • Poor battery life, as 'HX' series processors are essentially desktop parts adapted for laptops and consume significant power.
  • Thermal management can be challenging; users report the need for high-quality cooling to avoid reaching the 100°C limit.
  • Integrated graphics (Radeon 610M) are very basic and only intended for simple tasks, not gaming.
  • Lacks support for USB4 on most implementations, being limited to USB 3.2 Gen 2.

Expert reviews

L
laptopmedia.com
01/03/2026
AMD Ryzen 5 7645HX - LaptopMedia Versus

The AMD Ryzen 5 7645HX is a high-performance 6-core/12-thread "Dragon Range" laptop processor based on the 5nm Zen 4 architecture, offering a 4.0 GHz base clock and 5.0 GHz boost. It delivers strong, mid-to-high-end performance with a 13,985 Cinebench R23 score for heavy gaming and rendering tasks. Key pros include exceptional single-core speed, support for DDR5-5200 memory, and 28...Read more

C
cpubenchmark.net
01/03/2026
AMD Ryzen 5 7645HX - CPU Benchmarks

The AMD Ryzen 5 7645HX is a high-end 6-core "Dragon Range" laptop processor based on the 5nm Zen 4 architecture, designed for 55W+ TDP gaming laptops. It features a 4.0 GHz base clock, boosting up to 5.0 GHz, and a large 32MB L3 cache that delivers strong single-core performance suitable for gaming. The chip supports modern standards, including DDR5-5200 memory and PCIe 5.0. In...Read more

N
notebookcheck.biz
25/05/2023
Notebookcheck: Lenovo Legion Pro 5 16 Gen 8 Review – The Ryzen 7 7745HX Debuts (Analysis of variants including the 7645HX)

The Notebookcheck review of the Lenovo Legion Pro 5 16 Gen 8 highlights the AMD Ryzen 7 7745HX and RTX 4070 (140W) combination as a highly competitive, high-performance mid-range gaming laptop. Featuring a sturdy build, a 16-inch 165Hz display with 100% sRGB coverage, and efficient cooling, the system handles heavy loads at around 75°C. Notable drawbacks include poor battery life, a...Read more

(Translated)Show original
L
laptopmedia.com
01/01/2023
AMD Ryzen 5 7645HX - LaptopMedia

The AMD Ryzen 5 7645HX is a high-performance 6-core/12-thread "Dragon Range" laptop processor (Zen 4, 5nm) featuring a 4.0 GHz base clock, 5.0 GHz boost, and a massive 32MB L3 cache. According to LaptopMedia, this configuration delivers strong single-core performance, evidenced by a 2,717 score in Geekbench 6, alongside support for PCIe 5.0 and DDR5-5200 memory. While it offers...Read more

(Translated)Show original
L
laptopmedia.com
01/07/2026
AMD Ryzen 5 7645HX - LaptopMedia

The AMD Ryzen 5 7645HX is a high-performance, 6-core/12-thread "Dragon Range" mobile processor (Zen 4, 5nm) with a 32MB L3 cache and 5.0 GHz boost, designed for 55W+ TDP laptops. It delivers strong, competitive performance—ranking near the Intel Core i7-13700HX and surpassing the Ryzen 9 6980HX—with support for DDR5-5200 and PCIe Gen 5. Key disadvantages include a weak Radeon 610M...Read more

(Translated)Show original
N
notebookcheck.nl
04/08/2023
Lenovo Legion Pro 5 16ARX8 review: Gaming laptop with RTX 4050 in top form

The Lenovo Legion Pro 5 16ARX8 (82WM00A5MH) is a robust mid-range gaming laptop featuring an AMD Ryzen 5 7645HX and RTX 4050, delivering excellent performance through a high-end cooling system, though it lacks Thunderbolt support and is relatively heavy. The 16-inch QHD display is a standout with 500+ nits brightness and 240 Hz refresh, although the RTX 4050 sometimes struggles with...Read more

(Translated)Show original

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