HiSilicon Kirin 928 vs AMD EPYC 7251
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CPU comparison with benchmarks
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| HiSilicon Kirin 928 | AMD EPYC 7251 | |
CPU comparisonHiSilicon Kirin 928 or AMD EPYC 7251 - 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 HiSilicon Kirin 928 has 8 cores with 8 threads and clocks with a maximum frequency of 2.00 GHz. Up to GB of memory is supported in 2 memory channels. The HiSilicon Kirin 928 was released in Q3/2014. The AMD EPYC 7251 has 8 cores with 16 threads and clocks with a maximum frequency of 2.90 GHz. The CPU supports up to GB of memory in 8 memory channels. The AMD EPYC 7251 was released in Q3/2017. |
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| HiSilicon Kirin (29) | Family | AMD EPYC (129) |
| HiSilicon Kirin 920 (3) | CPU group | AMD EPYC 7001 (12) |
| 2 | Generation | 1 |
| Cortex-A15 / Cortex-A7 | Architecture | Naples (Zen) |
| Mobile | Segment | Desktop / Server |
| -- | Predecessor | -- |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe HiSilicon Kirin 928 has 8 CPU cores and can calculate 8 threads in parallel. The clock frequency of the HiSilicon Kirin 928 is 2.00 GHz while the AMD EPYC 7251 has 8 CPU cores and 16 threads can calculate simultaneously. The clock frequency of the AMD EPYC 7251 is at 2.10 GHz (2.90 GHz). |
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| HiSilicon Kirin 928 | Characteristic | AMD EPYC 7251 |
| 8 | Cores | 8 |
| 8 | Threads | 16 |
| hybrid (big.LITTLE) | Core architecture | normal |
| No | Hyperthreading | Yes |
| No | Overclocking ? | No |
| 2.00 GHz 4x Cortex-A15 |
A-Core | 2.10 GHz (2.90 GHz) |
| 1.30 GHz 4x Cortex-A7 |
B-Core | -- |
Internal GraphicsThe HiSilicon Kirin 928 or AMD EPYC 7251 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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| ARM Mali-T628 MP4 | GPU | no iGPU |
| 0.60 GHz | GPU frequency | -- |
| 0.60 GHz | GPU (Turbo) | -- |
| Midgard 2 | GPU Generation | -- |
| 32nm | Technology | |
| 1 | Max. displays | |
| 4 | Compute units | -- |
| 64 | Shader | -- |
| No | Hardware Raytracing | No |
| No | Frame Generation | No |
| -- | 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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| ARM Mali-T628 MP4 | GPU | no iGPU |
| No | Codec h265 / HEVC (8 bit) | No |
| No | Codec h265 / HEVC (10 bit) | No |
| Decode / Encode | Codec h264 | No |
| No | Codec VP9 | No |
| Decode / Encode | Codec VP8 | No |
| No | Codec AV1 | No |
| No | Codec AVC | No |
| No | Codec VC-1 | No |
| No | Codec JPEG | No |
Memory & PCIeThe HiSilicon Kirin 928 can use up to GB of memory in 2 memory channels. The maximum memory bandwidth is --. The AMD EPYC 7251 supports up to GB of memory in 8 memory channels and achieves a memory bandwidth of up to 153.6 GB/s. |
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| HiSilicon Kirin 928 | Characteristic | AMD EPYC 7251 |
| LPDDR3-1600 | Memory | DDR4-2666 |
| Max. Memory | ||
| 2 (Dual Channel) | Memory channels | 8 (Octa Channel) |
| -- | Max. Bandwidth | 153.6 GB/s |
| No | ECC | Yes |
| -- | L2 Cache | -- |
| -- | L3 Cache | 32.00 MB |
| -- | PCIe version | 3.0 |
| -- | PCIe lanes | 128 |
| -- | PCIe Bandwidth | 126.1 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the HiSilicon Kirin 928 is --, while the AMD EPYC 7251 has a TDP of 120 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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| HiSilicon Kirin 928 | Characteristic | AMD EPYC 7251 |
| -- | TDP (PL1 / PBP) | 120 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | -- |
| -- | Tjunction max. | -- |
Technical detailsThe HiSilicon Kirin 928 is manufactured in 28 nm and has 0.00 MB cache. The AMD EPYC 7251 is manufactured in 14 nm and has a 32.00 MB cache. |
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| HiSilicon Kirin 928 | Characteristic | AMD EPYC 7251 |
| 28 nm | Technology | 14 nm |
| Chiplet | Chip design | Chiplet |
| Armv7-A (32 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| -- | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 |
| -- | Socket | SP3 |
| None | Virtualization | AMD-V, SVM |
| No | AES-NI | Yes |
| Android | Operating systems | Windows 10, Linux |
| Q3/2014 | Release date | Q3/2017 |
| -- | Release price | 450 $ |
| show more data | show more data | |
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Rate these processors
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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HiSilicon Kirin 928
8C 8T @ 2.00 GHz |
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AMD EPYC 7251
8C 16T @ 2.90 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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HiSilicon Kirin 928
8C 8T @ 2.00 GHz |
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AMD EPYC 7251
8C 16T @ 2.90 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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HiSilicon Kirin 928
ARM Mali-T628 MP4 @ 0.60 GHz |
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AMD EPYC 7251
@ 0.00 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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HiSilicon Kirin 928
8C 8T @ 2.00 GHz |
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AMD EPYC 7251
8C 16T @ 2.90 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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HiSilicon Kirin 928
8C 8T @ 2.00 GHz |
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AMD EPYC 7251
8C 16T @ 2.90 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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HiSilicon Kirin 928
8C 8T @ 2.00 GHz |
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AMD EPYC 7251
8C 16T @ 2.90 GHz |
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Devices using this processor |
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| HiSilicon Kirin 928 | AMD EPYC 7251 |
| Unknown | Unknown |
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