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AMD A9 9420E Review | 78 Data compared

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  • Avg. price in UK: ~£260
  • Avg. price in US: ~$290
  • PassMark benchmark result: 1096
  • N. of physical cores: 2
  • CPU boost clock speed: 2.7 GHz

AMD A9 9420E review. Compare 78 technical specifications and user reviews to see how it ranks among processors and if it is worth buying.

3.3

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%

3.3

Technical Score

10.0%

?

User score

Poor
3.3

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%

2.7

Performance

18.0%

3.1

Cache & Architecture

10.0%

3.4

Memory & PCIe

7.0%

6.2

Power & Thermal

4.0%

7.8

Platform

1.0%

6.5

Integrated Graphics

Poor
?

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

  • 1.0
    Gaming

    Score components:

    30.0%

    1.0

    PassMark single-core benchmark score

    25.0%

    1.1

    Geekbench 6 single-core benchmark score

    20.0%

    1.0

    CPU boost clock speed

    17.0%

    1.0

    L3 cache

    8.0%

    1.0

    N. of physical cores

  • 1.0
    Video editing

    Score components:

    45.0%

    1.0

    Geekbench 6 multi-core benchmark score

    20.0%

    1.0

    N. of physical cores

    20.0%

    1.0

    CPU threads

    15.0%

    1.0

    L3 cache

  • No image
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Best prices in UK

    N/A~ £260

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 A9-9420e is an entry-level mobile APU from the Stoney Ridge architecture (7th generation), featuring 2 CPU cores and 2 threads with a base clock speed of 1.8 GHz and a turbo boost up to 2.7 GHz. Built on a 28nm process, it integrates Radeon R5 graphics with 192 shader units and supports single-channel DDR4-2133 memory. Its primary advantages are an exceptionally low 6W Thermal Design Power (TDP) and low heat output, which enable completely fanless and silent laptop designs suitable for basic office productivity and web browsing. However, it faces significant drawbacks, including very limited multi-core performance for demanding tasks, a single-channel memory controller that can bottle neck the integrated GPU, and an overall performance level that struggles with modern gaming or complex multitasking.

Technical Specifications of processor AMD A9 9420E

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

3.3
AMD A9 9420E has a technical score of 3.3 points, which is lower than that of 97.6% 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 A9 9420E 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%

3.3

Overall score

40.0%

9.2

Price

5.1
AMD A9 9420E has a quality-to-price ratio of 5.1 points, which is lower than 95.1% 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 A9 9420E 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

?
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 A9 9420E 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+

2
AMD A9 9420E has 2 CPU cores, which is fewer than 79.3% of processors and equal to 20.6% 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+

2
AMD A9 9420E offers 2 CPU threads, which is fewer than 93.9% of processors and equal to 6% 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

1
AMD A9 9420E offers 1 threads per core, which is fewer than 69.7% of processors and equal to 30.3% 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

2.7 GHz
AMD A9 9420E reaches a boost clock of 2.7 GHz which is lower than that of 96.1% of processors and equal to that of 0.8% 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

2 x 1.8 GHz
AMD A9 9420E has a base clock of 2x1.8 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

28 nm
AMD A9 9420E uses a 28 nm process node, which is older than that of 94.8% of processors and equal to that of 2.9% 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

GlobalFoundries 28 nm
AMD A9 9420E is built on the GlobalFoundries 28 nm foundry process, which is less advanced than that of 94.8% of processors and equal to that of 2.9% 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

0 MB
AMD A9 9420E has an L3 cache of 0 MB which is smaller than that of 93.6% of processors and equal to that of 6.4% 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

1 MB
AMD A9 9420E has an L2 cache of 1 MB which is smaller than that of 67.1% of processors and equal to that of 17.6% 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

160 KB
AMD A9 9420E has an L1 cache of 160 KB which is smaller than that of 81.4% of processors and equal to that of 1.7% 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

DDR4
AMD A9 9420E supports DDR DDR4, which is newer than that of 26.3% of processors and equal to that of 31.7% 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

2,133 MHz
AMD A9 9420E supports memory speeds up to 2133 MHz, which is lower than that of 75.6% of processors and equal to 8.8% 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

DDR4-2133 MHz
AMD A9 9420E supports JEDEC memory speeds up to DDR4-2133 MHz, which is lower than that of 75.9% of processors and equal to 5.3% 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

32 GB
AMD A9 9420E supports up to 32 GB of memory, which is less than 71.9% of processors and equal to 19.5% 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 A9 9420E 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 R5
AMD A9 9420E uses the Radeon R5 integrated GPU, which is less advanced than that in 84.2% of processors and equal to that in 0.9% 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

3
AMD A9 9420E has 3 GPU execution units, which is fewer than 93% of processors and equal to 2.5% 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

720 MHz
AMD A9 9420E has an integrated GPU clock of 720 MHz which is higher than that of 89.3% of processors and equal to that of 0.4% 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)
AMD A9 9420E supports H.264 (HW decode/encode), H.265 (HW decode/encode), VP9 (HW decode) media codecs, which is broader support than 56.2% of processors and equal to 9.5% 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

6 W
AMD A9 9420E has a TDP of 6 W which is lower than that of 96.9% of processors and equal to that of 1.7% 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

6 W
AMD A9 9420E has a base power of 6 W which is lower than that of 96.8% of processors and equal to that of 1.7% 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

6 W
AMD A9 9420E has a boost power of 6 W which is lower than that of 98.5% of processors and equal to that of 1.2% 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

no
AMD A9 9420E does not support configurable TDP. 52.9% of processors support configurable TDP.
Show more

AMD A9 9420E vs the average processor

  • 86.7% lower base power
    AMD A9 9420E has a lower base power draw than the average processor (6 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 A9 9420E has a lower base power draw than the average processor (6 W vs 45 W). The average processor has a base power draw of 45 W.6 W vs 45 W
  • 90.6% lower boost power
    AMD A9 9420E has a lower boost power draw than the average processor (6 W vs 64 W). The average processor has a boost power draw of 64 W.
    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

    AMD A9 9420E has a lower boost power draw than the average processor (6 W vs 64 W). The average processor has a boost power draw of 64 W.6 W vs 64 W
  • 10 °C lower CPU temperature
    AMD A9 9420E has a lower CPU temperature than the average processor (90 °C vs 100 °C). The average processor runs at a CPU temperature of 100 °C.
    What it is: The reported operating temperature of the processor.
    When it matters: When you monitor thermals, cooling, or system stability.

    Importance: LOW

    Good value: <100 °C

    AMD A9 9420E has a lower CPU temperature than the average processor (90 °C vs 100 °C). The average processor runs at a CPU temperature of 100 °C.90 °C vs 100 °C
  • 86.7% lower TDP
    AMD A9 9420E has a lower TDP than the average processor (6 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 A9 9420E has a lower TDP than the average processor (6 W vs 45 W). The average processor has a TDP of 45 W.6 W vs 45 W
  • Broader instruction support
    AMD A9 9420E supports a broader instruction set than the average processor (MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, F16C, FMA3, FMA4, AES, BMI1, BMI2, XOP, TBM vs MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, F16C, FMA3, AES, SHA).
    What it is: The supported CPU instruction sets and extensions.
    When it matters: When you run software that depends on specific CPU instructions.

    Importance: MEDIUM

    AMD A9 9420E supports a broader instruction set than the average processor (MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, F16C, FMA3, FMA4, AES, BMI1, BMI2, XOP, TBM vs MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, F16C, FMA3, AES, SHA).MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, F16C, FMA3, FMA4, AES, BMI1, BMI2, XOP, TBM vs MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, F16C, FMA3, AES, SHA
  • 30.1% smaller die size
    AMD A9 9420E has a lower die size than the average processor (124.5 mm² vs 178 mm²). The average processor has a die size of 178 mm².
    What it is: The physical area of the processor die, usually measured in square millimeters.
    When it matters: When you are comparing chip scale, packaging density, or broader design differences rather than direct user-visible performance.

    Importance: LOW

    Good value: <150 mm²

    AMD A9 9420E has a lower die size than the average processor (124.5 mm² vs 178 mm²). The average processor has a die size of 178 mm².124.5 mm² vs 178 mm²
  • 2.06x higher GPU clock speed
    AMD A9 9420E has a higher integrated GPU frequency than the average processor (720 MHz vs 350 MHz). The average processor has integrated GPU frequency of 350 MHz.
    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

    AMD A9 9420E has a higher integrated GPU frequency than the average processor (720 MHz vs 350 MHz). The average processor has integrated GPU frequency of 350 MHz.720 MHz vs 350 MHz
  • Broader instruction support
    AMD A9 9420E supports a broader instruction set than the average processor (MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, F16C, FMA3, FMA4, AES, BMI1, BMI2, XOP, TBM vs MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, F16C, FMA3, AES, SHA).
  • 30.1% smaller die size
    AMD A9 9420E has a lower die size than the average processor (124.5 mm² vs 178 mm²). The average processor has a die size of 178 mm².
  • 2.06x higher GPU clock speed
    AMD A9 9420E has a higher integrated GPU frequency than the average processor (720 MHz vs 350 MHz). The average processor has integrated GPU frequency of 350 MHz.
  • 86.7% lower base power
    AMD A9 9420E has a lower base power draw than the average processor (6 W vs 45 W). The average processor has a base power draw of 45 W.
  • 90.6% lower boost power
    AMD A9 9420E has a lower boost power draw than the average processor (6 W vs 64 W). The average processor has a boost power draw of 64 W.
  • 10 °C lower CPU temperature
    AMD A9 9420E has a lower CPU temperature than the average processor (90 °C vs 100 °C). The average processor runs at a CPU temperature of 100 °C.
  • 86.7% lower TDP
    AMD A9 9420E has a lower TDP than the average processor (6 W vs 45 W). The average processor has a TDP of 45 W.

Total
Platform
Cache & Architecture
Integrated Graphics
Power & Thermal
  • 4 year/s older release date
    AMD A9 9420E has an older release date than the average processor (2,016 vs 2,020).
    May 2016
  • Older TPM support
    AMD A9 9420E supports an older TPM version than the average processor (fTPM 2.0 vs PTT 2.0).
  • 61.9% weaker single-core performance
    AMD A9 9420E has a lower PassMark single-core score than the average processor (945 vs 2,483). The average processor scores 2,483 in PassMark single-core.
  • 70% lower single-core score
    AMD A9 9420E has a lower Geekbench 6 single-core score than the average processor (442 vs 1,471). The average processor scores 1,471 in Geekbench 6 single-core.
  • 37.2% lower boost clock
    AMD A9 9420E has a lower boost clock speed than the average processor (2.7 GHz vs 4.3 GHz). The average processor reaches boost clock speed of 4.3 GHz.
  • 4 fewer CPU cores
    AMD A9 9420E has fewer CPU cores than the average processor (2 vs 6). The average processor has 6 CPU cores.
  • 93.5% lower multi-core score
    AMD A9 9420E has a lower Geekbench 6 multi-core score than the average processor (310 vs 4,793). The average processor scores 4,793 in Geekbench 6 multi-core.
  • 89.6% lower PassMark score
    AMD A9 9420E has a lower PassMark benchmark score than the average processor (1,096 vs 10,532.5). The average processor scores 10,532.5 in PassMark benchmark.
  • 6 fewer CPU threads
    AMD A9 9420E has fewer CPU threads than the average processor (2 vs 8). The average processor has 8 CPU threads.
  • No multithreading support
    AMD A9 9420E does not support multithreading, the average processor does.
  • 1 fewer threads per core
    AMD A9 9420E has fewer threads per core than the average processor (1 vs 2). The average processor offers 2 threads per core.
  • 10 lower clock multiplier
    AMD A9 9420E has a lower clock multiplier than the average processor (18 vs 28). The average processor has a clock multiplier of 28.
  • 2.33x larger process node
    AMD A9 9420E has a higher process node than the average processor (28 nm vs 12 nm). The average processor uses a process node of 12 nm.
  • Less advanced microarchitecture
    AMD A9 9420E uses a less advanced microarchitecture than the average processor (Stoney Ridge vs Kaby Lake).
  • 60% smaller L2 cache
    AMD A9 9420E has a lower L2 cache than the average processor (1 MB vs 2.5 MB). The average processor has L2 cache of 2.5 MB.
  • 58.3% smaller L1 cache
    AMD A9 9420E has a lower L1 cache than the average processor (160 KB vs 384 KB). The average processor has L1 cache of 384 KB.
  • 75.8% fewer transistors
    AMD A9 9420E has fewer transistors than the average processor (1.2 billion vs 4.95 billion). The average processor has 4.95 billion transistors.
  • Less advanced foundry
    AMD A9 9420E uses a less advanced foundry process than the average processor (GlobalFoundries 28 nm vs Intel 14 nm).
  • 62.7% lower memory bandwidth
    AMD A9 9420E has a lower memory bandwidth than the average processor (17.1 GB/s vs 45.8 GB/s). The average processor offers memory bandwidth of 45.8 GB/s.
  • 8 fewer PCIe lanes
    AMD A9 9420E has fewer PCIe lanes than the average processor (8 vs 16). The average processor offers 16 PCIe lanes.
  • 27.3% lower memory speed
    AMD A9 9420E has a lower maximum memory speed than the average processor (2,133 MHz vs 2,933 MHz). The average processor supports memory speed of 2,933 MHz.
  • 50% less memory capacity
    AMD A9 9420E has fewer maximum memory capacity than the average processor (32 GB vs 64 GB). The average processor supports 64 GB of memory.
  • 1 fewer memory channels
    AMD A9 9420E has fewer memory channels than the average processor (1 vs 2). The average processor supports 2 memory channels.
  • 87.5% fewer GPU execution units
    AMD A9 9420E has fewer GPU execution units than the average processor (3 vs 24). The average processor has 24 GPU execution units.
  • Inferior integrated GPU
    AMD A9 9420E uses an inferior integrated GPU to the average processor (Radeon R5 vs Intel UHD Graphics 630).
  • Narrower media codec support
    AMD A9 9420E supports fewer media codecs than the average processor (H.264 (HW decode/encode), H.265 (HW decode/encode), VP9 (HW decode) vs H.264 (HW decode/encode), H.265 (HW decode/encode), VP9 (HW decode/encode), AV1 (HW decode)).
  • 10 °C lower TJ Max
    AMD A9 9420E has a lower TJ Max than the average processor (90 °C vs 100 °C). The average processor has a TJ Max of 100 °C.
  • No configurable TDP
    AMD A9 9420E does not support configurable TDP, the average processor does.
  • 61.9% weaker single-core performance
    AMD A9 9420E has a lower PassMark single-core score than the average processor (945 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 A9 9420E has a lower PassMark single-core score than the average processor (945 vs 2,483). The average processor scores 2,483 in PassMark single-core.945 vs 2,483
  • 70% lower single-core score
    AMD A9 9420E has a lower Geekbench 6 single-core score than the average processor (442 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 A9 9420E has a lower Geekbench 6 single-core score than the average processor (442 vs 1,471). The average processor scores 1,471 in Geekbench 6 single-core.442 vs 1,471
  • 37.2% lower boost clock
    AMD A9 9420E has a lower boost clock speed than the average processor (2.7 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 A9 9420E has a lower boost clock speed than the average processor (2.7 GHz vs 4.3 GHz). The average processor reaches boost clock speed of 4.3 GHz.2.7 GHz vs 4.3 GHz
  • 4 fewer CPU cores
    AMD A9 9420E has fewer CPU cores than the average processor (2 vs 6). The average processor has 6 CPU 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+

    AMD A9 9420E has fewer CPU cores than the average processor (2 vs 6). The average processor has 6 CPU cores.2 vs 6
  • 93.5% lower multi-core score
    AMD A9 9420E has a lower Geekbench 6 multi-core score than the average processor (310 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 A9 9420E has a lower Geekbench 6 multi-core score than the average processor (310 vs 4,793). The average processor scores 4,793 in Geekbench 6 multi-core.310 vs 4,793
  • 89.6% lower PassMark score
    AMD A9 9420E has a lower PassMark benchmark score than the average processor (1,096 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 A9 9420E has a lower PassMark benchmark score than the average processor (1,096 vs 10,532.5). The average processor scores 10,532.5 in PassMark benchmark.1,096 vs 10,532.5
  • 2.33x larger process node
    AMD A9 9420E has a higher process node than the average processor (28 nm vs 12 nm). The average processor uses a process node of 12 nm.
    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

    AMD A9 9420E has a higher process node than the average processor (28 nm vs 12 nm). The average processor uses a process node of 12 nm.28 nm vs 12 nm
  • 6 fewer CPU threads
    AMD A9 9420E has fewer CPU threads than the average processor (2 vs 8). The average processor has 8 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+

    AMD A9 9420E has fewer CPU threads than the average processor (2 vs 8). The average processor has 8 CPU threads.2 vs 8
Total
Overall
Platform
Performance
Cache & Architecture
Memory & PCIe
Integrated Graphics
Power & Thermal

Graphic comparison of AMD A9 9420E and other processors

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Third-party reviews

What customers like about AMD A9 9420E?

  • Extremely low power consumption (6W TDP), which aids battery life and allows for fanless, silent designs.
  • Capable of handling basic productivity tasks like web browsing, checking email, and using office software.
  • Suitable for media consumption, such as watching movies, provided hardware decoding is supported.
  • Can run older or very light games (e.g., Minecraft, Counter-Strike: Source) at low-to-medium settings.
  • Includes integrated Radeon R5 graphics, which is adequate for simple graphical needs without a dedicated GPU.

What customers dislike about AMD A9 9420E?

  • Very poor multi-core performance due to having only two weak CPU cores.
  • Frequent 100% CPU usage even during light background tasks like Windows updates or antivirus scans, causing system lag.
  • Struggles significantly with modern gaming; most recent titles will not run or will have unplayable frame rates.
  • Single-channel memory support limits potential performance gains from RAM upgrades.
  • General system responsiveness is often reported as 'choppy' or 'slow,' especially when paired with a traditional hard drive instead of an SSD.

Expert reviews

C
cpubenchmark.net
29/03/2026
AMD A9-9420e - CPU Benchmarks (PassMark)

The AMD A9-9420e is a 2018 "Stoney Ridge" APU featuring two cores and a 6W TDP, optimized for fanless, budget-friendly laptops. A key advantage is its exceptional energy efficiency and silent, passive cooling, while its integrated Radeon R5 GPU handles basic media consumption well. However, the CPU's limited performance, with only two threads, results in 100% usage during common...Read more

V
valid.x86.fr
14/02/2019
CPU-Z Benchmark for AMD A9-9420e Radeon R5 (2T)

The CPU-Z validation for the AMD Ryzen 7 7800X3D highlights an 8-core, 16-thread processor utilizing Zen 4 architecture on the AM5 socket, operating with a 96MB L3 cache and a 5.0GHz boost clock at 120W TDP. This technical data confirms the chip's ability to maintain high, stable frequencies under load, positioning it as a top-tier gaming processor. Pros include unmatched gaming...Read more

(Translated)Show original
V
valid.x86.fr
12/10/2018
CPU-Z Benchmark for AMD A9-9420e RADEON R5 (1T)

The CPU-Z validation for the AMD Ryzen 7 9800X3D (Zen 5) shows a single-thread score of 792 and a multi-thread score of 8,631, utilizing an MSI MAG X870E TOMAHAWK WIFI motherboard and DDR5-6400 memory at 5.2 GHz. The processor, with a 120W TDP, boasts improved thermal conductivity via a revamped 3D V-Cache design, resulting in a 17.5% single-thread and 29% multi-thread performance...Read more

(Translated)Show original
N
notebookcheck.nl
19/03/2026
Intel Gemini Lake Celeron J4125 Laptop Processor (Benchmark Review with A9-9420e Scores)

5 sitesHere are top web results for exploring this topic:Notebookcheck· Celeron J4125 Processor - Benchmarks and SpecsThe Intel Celeron J4125 is a quad-core SoC primarily for inexpensive mini PCs and was announced late 2019. It runs at 2-2.7 GHz (Single Core Burst)Notebookcheck· Celeron N4020 vs vs Intel Celeron J4125 - NotebookcheckThe Intel Celeron J4125 is a quad-core SoC...Read more

(Translated)Show original

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