AMD A8-3820 vs AMD EPYC 7551
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CPU comparison with benchmarks
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| AMD A8-3820 | AMD EPYC 7551 | |
CPU comparisonIn this CPU comparison, we compare the AMD A8-3820 and the AMD EPYC 7551 and use benchmarks to check which processor is faster.
We compare the AMD A8-3820 4 core processor released in Q4/2011 with the AMD EPYC 7551 which has 32 CPU cores and was introduced in Q3/2017. |
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| AMD A (112) | Family | AMD EPYC (129) |
| AMD A8-3000 (4) | CPU group | AMD EPYC 7001 (12) |
| 1 | Generation | 1 |
| Llano (K10) | Architecture | Naples (Zen) |
| Desktop / Server | Segment | Desktop / Server |
| -- | Predecessor | -- |
| -- | Successor | AMD EPYC 7552 |
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CPU Cores and Base FrequencyThe AMD A8-3820 is a 4 core processor with a clock frequency of 2.50 GHz (2.80 GHz). The processor can compute 4 threads at the same time. The AMD EPYC 7551 clocks with 2.00 GHz (3.00 GHz), has 32 CPU cores and can calculate 64 threads in parallel. |
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| AMD A8-3820 | Characteristic | AMD EPYC 7551 |
| 4 | Cores | 32 |
| 4 | Threads | 64 |
| normal | Core architecture | normal |
| No | Hyperthreading | Yes |
| Yes | Overclocking ? | No |
| 2.50 GHz | Frequency | 2.00 GHz |
| 2.80 GHz | Turbo Frequency (1 Core) | 3.00 GHz |
| 2.80 GHz | Turbo Frequency (All Cores) | 2.55 GHz |
Integrated graphics (iGPU)Graphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback. |
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| AMD Radeon HD 6550D | GPU | no iGPU |
| 0.60 GHz | GPU frequency | -- |
| -- | GPU (Turbo) | -- |
| 3 | GPU Generation | -- |
| 32 nm | Technology | |
| 2 | Max. displays | |
| 5 | Compute units | -- |
| 400 | Shader | -- |
| No | Hardware Raytracing | No |
| No | Frame Generation | No |
| 1 GB | Max. GPU Memory | -- |
| 11 | DirectX Version | -- |
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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| AMD Radeon HD 6550D | GPU | no iGPU |
| No | Codec h265 / HEVC (8 bit) | No |
| No | Codec h265 / HEVC (10 bit) | No |
| Decode | Codec h264 | No |
| No | Codec VP9 | No |
| No | Codec VP8 | No |
| No | Codec AV1 | No |
| Decode | Codec AVC | No |
| Decode | Codec VC-1 | No |
| Decode / Encode | Codec JPEG | No |
Memory & PCIeUp to GB of memory in a maximum of 2 memory channels is supported by the AMD A8-3820, while the AMD EPYC 7551 supports a maximum of GB of memory with a maximum memory bandwidth of 170.6 GB/s enabled. |
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| AMD A8-3820 | Characteristic | AMD EPYC 7551 |
| DDR3-1600 | Memory | DDR4-2666 |
| Max. Memory | ||
| 2 (Dual Channel) | Memory channels | 8 (Octa Channel) |
| 25.6 GB/s | Max. Bandwidth | 170.6 GB/s |
| No | ECC | Yes |
| -- | L2 Cache | -- |
| 4.00 MB | L3 Cache | 64.00 MB |
| -- | PCIe version | 3.0 |
| -- | PCIe lanes | 128 |
| -- | PCIe Bandwidth | 126.1 GB/s |
Thermal ManagementThe AMD A8-3820 has a TDP of 65 W. The TDP of the AMD EPYC 7551 is 180 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution. |
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| AMD A8-3820 | Characteristic | AMD EPYC 7551 |
| 65 W | TDP (PL1 / PBP) | 180 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | -- |
| -- | Tjunction max. | -- |
Technical detailsThe AMD A8-3820 has 4.00 MB cache and is manufactured in 32 nm. The cache of AMD EPYC 7551 is at 64.00 MB. The processor is manufactured in 14 nm. |
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| AMD A8-3820 | Characteristic | AMD EPYC 7551 |
| 32 nm | Technology | 14 nm |
| Unknown | Chip design | Chiplet |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE3, SSE4a | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 |
| FM1 | Socket | SP3 |
| AMD-V | Virtualization | AMD-V, SVM |
| No | AES-NI | Yes |
| Windows 10, Linux | Operating systems | Windows 10, Linux |
| Q4/2011 | Release date | Q3/2017 |
| 85 $ | Release price | 3200 $ |
| show more data | show more data | |
4C 4T @ 2.50 GHz (2.80 GHz) buy now on Amazon and save!
32C 64T @ 2.00 GHz (3.00 GHz) buy now on Amazon and save!
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Rate these processors
Average performance in benchmarks
⌀ Single core performance in 0 CPU benchmarks
⌀ Multi core performance in 1 CPU benchmarks
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 A8-3820
4C 4T @ 2.80 GHz |
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AMD EPYC 7551
32C 64T @ 2.55 GHz |
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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 A8-3820
4C 4T @ 2.80 GHz |
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AMD EPYC 7551
32C 64T @ 3.00 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 A8-3820
4C 4T @ 2.80 GHz |
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AMD EPYC 7551
32C 64T @ 2.55 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 A8-3820
AMD Radeon HD 6550D @ 0.60 GHz |
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AMD EPYC 7551
@ 0.00 GHz |
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Cinebench R15 (Single-Core)
Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
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AMD A8-3820
4C 4T @ 2.80 GHz |
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AMD EPYC 7551
32C 64T @ 3.00 GHz |
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Cinebench R15 (Multi-Core)
Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
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AMD A8-3820
4C 4T @ 2.80 GHz |
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AMD EPYC 7551
32C 64T @ 2.55 GHz |
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Devices using this processor |
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| AMD A8-3820 | AMD EPYC 7551 |
| Unknown | Unknown |
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