AMD EPYC 9634 vs AMD A4-9120
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CPU comparison with benchmarks
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| AMD EPYC 9634 | AMD A4-9120 | |
CPU comparisonAMD EPYC 9634 or AMD A4-9120 - 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 9634 has 84 cores with 168 threads and clocks with a maximum frequency of 3.70 GHz. Up to 6144 GB of memory is supported in 12 memory channels. The AMD EPYC 9634 was released in Q4/2022. The AMD A4-9120 has 2 cores with 2 threads and clocks with a maximum frequency of 2.50 GHz. The CPU supports up to 8 GB of memory in 1 memory channels. The AMD A4-9120 was released in Q2/2017. |
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| AMD EPYC (129) | Family | AMD A (112) |
| AMD EPYC 9004 (21) | CPU group | AMD A4-9000 (2) |
| 4 | Generation | 6 |
| 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 9634 is a 84 core processor with a clock frequency of 2.25 GHz (3.70 GHz). The AMD A4-9120 has 2 CPU cores with a clock frequency of 2.20 GHz (2.50 GHz). |
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| AMD EPYC 9634 | Characteristic | AMD A4-9120 |
| 84 | Cores | 2 |
| 168 | Threads | 2 |
| normal | Core architecture | normal |
| Yes | Hyperthreading | No |
| No | Overclocking ? | No |
| 2.25 GHz | Frequency | 2.20 GHz |
| 3.70 GHz | Turbo Frequency (1 Core) | 2.50 GHz |
| 3.10 GHz | Turbo Frequency (All Cores) | 2.20 GHz |
Internal GraphicsThe integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs. |
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| no iGPU | GPU | AMD Radeon R3 (Stoney Ridge) |
| GPU frequency | 0.66 GHz | |
| -- | GPU (Turbo) | -- |
| -- | GPU Generation | 7 |
| Technology | 28 nm | |
| Max. displays | 3 | |
| -- | Compute units | 2 |
| -- | Shader | 128 |
| 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 R3 (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 9634 supports a maximum of 6144 GB of memory in 12 memory channels. The AMD A4-9120 can connect up to 8 GB of memory in 1 memory channels. |
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| AMD EPYC 9634 | Characteristic | AMD A4-9120 |
| 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 |
| 84.00 MB | L2 Cache | -- |
| 384.00 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 TDP (Thermal Design Power) of a processor specifies the required cooling solution. The AMD EPYC 9634 has a TDP of 290 W, that of the AMD A4-9120 is 15 W. |
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| AMD EPYC 9634 | Characteristic | AMD A4-9120 |
| 290 W | TDP (PL1 / PBP) | 15 W |
| -- | TDP (PL2) | -- |
| 300 W | TDP up | -- |
| 240 W | TDP down | 10 W |
| 100 °C | Tjunction max. | 90 °C |
Technical detailsThe AMD EPYC 9634 has a 468.00 MB cache, while the AMD A4-9120 cache has a total of 2.00 MB. |
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| AMD EPYC 9634 | Characteristic | AMD A4-9120 |
| 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 |
| 10304 $ | Release price | -- |
| show more data | show more data | |
84C 168T @ 2.25 GHz (3.70 GHz) buy now on Amazon and save!
2C 2T @ 2.20 GHz (2.50 GHz) buy now on Amazon and save!
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Rate these processors
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 9634
@ 0.00 GHz |
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AMD A4-9120
AMD Radeon R3 (Stoney Ridge) @ 0.66 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 9634
84C 168T @ 3.10 GHz |
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AMD A4-9120
2C 2T @ 2.20 GHz |
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CPU-Z Benchmark 17 (Multi-Core)
The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
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AMD EPYC 9634
84C 168T @ 2.25 GHz |
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AMD A4-9120
2C 2T @ 2.20 GHz |
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Devices using this processor |
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| AMD EPYC 9634 | AMD A4-9120 |
| Unknown | Unknown |
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