AMD EPYC 9554 vs AMD A9-9420e
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CPU comparison with benchmarks
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| AMD EPYC 9554 | AMD A9-9420e | |
CPU comparisonAMD EPYC 9554 or AMD A9-9420e - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.
The AMD EPYC 9554 has 64 cores with 128 threads and clocks with a maximum frequency of 3.75 GHz. Up to 6144 GB of memory is supported in 12 memory channels. The AMD EPYC 9554 was released in Q4/2022. The AMD A9-9420e has 2 cores with 2 threads and clocks with a maximum frequency of 2.70 GHz. The CPU supports up to 8 GB of memory in 1 memory channels. The AMD A9-9420e was released in Q2/2017. |
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| AMD EPYC (129) | Family | AMD A (112) |
| AMD EPYC 9004 (21) | CPU group | AMD A9-9000 (4) |
| 4 | Generation | 4 |
| Genoa / Genoa-X (Zen 4) | Architecture | Stoney Ridge (Excavator) |
| Desktop / Server | Segment | Mobile |
| -- | Predecessor | -- |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD EPYC 9554 has 64 CPU cores and can calculate 128 threads in parallel. The clock frequency of the AMD EPYC 9554 is 3.10 GHz (3.75 GHz) while the AMD A9-9420e has 2 CPU cores and 2 threads can calculate simultaneously. The clock frequency of the AMD A9-9420e is at 1.80 GHz (2.70 GHz). |
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| AMD EPYC 9554 | Characteristic | AMD A9-9420e |
| 64 | Cores | 2 |
| 128 | Threads | 2 |
| normal | Core architecture | normal |
| Yes | Hyperthreading | No |
| No | Overclocking ? | No |
| 3.10 GHz | Frequency | 1.80 GHz |
| 3.75 GHz | Turbo Frequency (1 Core) | 2.70 GHz |
| 3.75 GHz | Turbo Frequency (All Cores) | 2.40 GHz |
Internal GraphicsThe AMD EPYC 9554 or AMD A9-9420e has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die. |
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| no iGPU | GPU | AMD Radeon R5 (Stoney Ridge) |
| GPU frequency | 0.72 GHz | |
| -- | GPU (Turbo) | -- |
| -- | GPU Generation | 7 |
| Technology | 28 nm | |
| Max. displays | 3 | |
| -- | Compute units | 3 |
| -- | Shader | 192 |
| No | Hardware Raytracing | No |
| No | Frame Generation | No |
| -- | Max. GPU Memory | 2 GB |
| -- | DirectX Version | 12 |
Hardware codec supportA photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos. |
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| no iGPU | GPU | AMD Radeon R5 (Stoney Ridge) |
| No | Codec h265 / HEVC (8 bit) | Decode |
| No | Codec h265 / HEVC (10 bit) | Decode |
| No | Codec h264 | Decode |
| No | Codec VP9 | Decode |
| No | Codec VP8 | Decode |
| No | Codec AV1 | No |
| No | Codec AVC | Decode / Encode |
| No | Codec VC-1 | Decode |
| No | Codec JPEG | Decode / Encode |
Memory & PCIeThe AMD EPYC 9554 can use up to 6144 GB of memory in 12 memory channels. The maximum memory bandwidth is 460.8 GB/s. The AMD A9-9420e supports up to 8 GB of memory in 1 memory channels and achieves a memory bandwidth of up to 17.1 GB/s. |
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| AMD EPYC 9554 | Characteristic | AMD A9-9420e |
| DDR5-4800 | Memory | DDR4-2133 |
| 6144 GB | Max. Memory | 8 GB |
| 12 | Memory channels | 1 (Single Channel) |
| 460.8 GB/s | Max. Bandwidth | 17.1 GB/s |
| Yes | ECC | No |
| 64.00 MB | L2 Cache | -- |
| 256.00 MB | L3 Cache | 2.00 MB |
| 5.0 | PCIe version | 3.0 |
| 128 | PCIe lanes | 8 |
| 504.1 GB/s | PCIe Bandwidth | 7.9 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the AMD EPYC 9554 is 360 W, while the AMD A9-9420e has a TDP of 6 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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| AMD EPYC 9554 | Characteristic | AMD A9-9420e |
| 360 W | TDP (PL1 / PBP) | 6 W |
| -- | TDP (PL2) | -- |
| 400 W | TDP up | -- |
| 320 W | TDP down | -- |
| 100 °C | Tjunction max. | 90 °C |
Technical detailsThe AMD EPYC 9554 is manufactured in 5 nm and has 320.00 MB cache. The AMD A9-9420e is manufactured in 28 nm and has a 2.00 MB cache. |
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| AMD EPYC 9554 | Characteristic | AMD A9-9420e |
| 5 nm | Technology | 28 nm |
| Chiplet | Chip design | Unknown |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE4.2, AVX2, AVX-512, BFLOAT16, VNNI | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4 |
| SP5 | Socket | FP4 |
| AMD-V, SVM | Virtualization | AMD-V |
| Yes | AES-NI | Yes |
| Windows Server 2022, Linux, Windows 11 | Operating systems | |
| Q4/2022 | Release date | Q2/2017 |
| 9087 $ | Release price | -- |
| show more data | show more data | |
64C 128T @ 3.10 GHz (3.75 GHz) buy now on Amazon and save!
2C 2T @ 1.80 GHz (2.70 GHz) buy now on Amazon and save!
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Rate these processors
Average performance in benchmarks
⌀ Single core performance in 1 CPU benchmarks
⌀ Multi core performance in 1 CPU benchmarks
Geekbench 5, 64bit (Single-Core)
Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
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AMD EPYC 9554
64C 128T @ 3.75 GHz |
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AMD A9-9420e
2C 2T @ 2.70 GHz |
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Geekbench 5, 64bit (Multi-Core)
Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
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AMD EPYC 9554
64C 128T @ 3.75 GHz |
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AMD A9-9420e
2C 2T @ 2.40 GHz |
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Geekbench 6 (Single-Core)
Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
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AMD EPYC 9554
64C 128T @ 3.75 GHz |
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AMD A9-9420e
2C 2T @ 2.70 GHz |
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Geekbench 6 (Multi-Core)
Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
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AMD EPYC 9554
64C 128T @ 3.75 GHz |
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AMD A9-9420e
2C 2T @ 2.40 GHz |
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iGPU - FP32 Performance (Single-precision GFLOPS)
The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
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AMD EPYC 9554
@ 0.00 GHz |
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AMD A9-9420e
AMD Radeon R5 (Stoney Ridge) @ 0.72 GHz |
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Estimated results for PassMark CPU Mark
Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
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AMD EPYC 9554
64C 128T @ 3.75 GHz |
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AMD A9-9420e
2C 2T @ 2.40 GHz |
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Devices using this processor |
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| AMD EPYC 9554 | AMD A9-9420e |
| Unknown | Unknown |
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