HiSilicon Kirin 955 | AMD EPYC Embedded 3251 | |
CPU comparisonHiSilicon Kirin 955 or AMD EPYC Embedded 3251 - 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 955 has 8 cores with 8 threads and clocks with a maximum frequency of 2.50 GHz. Up to GB of memory is supported in 2 memory channels. The HiSilicon Kirin 955 was released in Q2/2016. The AMD EPYC Embedded 3251 has 8 cores with 16 threads and clocks with a maximum frequency of 3.10 GHz. The CPU supports up to GB of memory in 2 memory channels. The AMD EPYC Embedded 3251 was released in Q1/2018. |
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HiSilicon Kirin (29) | Family | AMD EPYC (129) |
HiSilicon Kirin 950 (2) | CPU group | AMD EPYC Embedded 3000 (7) |
4 | Generation | 1 |
Cortex-A72 / Cortex-A53 | Architecture | Snowy Owl (Zen) |
Mobile | Segment | Desktop / Server |
-- | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe HiSilicon Kirin 955 is a 8 core processor with a clock frequency of 2.50 GHz. The AMD EPYC Embedded 3251 has 8 CPU cores with a clock frequency of 2.50 GHz (3.10 GHz). |
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HiSilicon Kirin 955 | Characteristic | AMD EPYC Embedded 3251 |
8 | Cores | 8 |
8 | Threads | 16 |
hybrid (big.LITTLE) | Core architecture | normal |
No | Hyperthreading | Yes |
No | Overclocking ? | Yes |
2.50 GHz 4x Cortex-A72 |
A-Core | 2.50 GHz (3.10 GHz) |
1.80 GHz 4x Cortex-A53 |
B-Core | -- |
Integrated graphics (iGPU)The 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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ARM Mali-T880 MP4 | GPU | no iGPU |
0.90 GHz | GPU frequency | -- |
0.90 GHz | GPU (Turbo) | -- |
Midgard 4 | GPU Generation | -- |
16 nm | Technology | |
2 | 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-T880 MP4 | GPU | no iGPU |
Decode / Encode | Codec h265 / HEVC (8 bit) | No |
Decode | 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 |
Decode / Encode | Codec JPEG | No |
Memory & PCIeThe HiSilicon Kirin 955 supports a maximum of GB of memory in 2 memory channels. The AMD EPYC Embedded 3251 can connect up to GB of memory in 2 memory channels. |
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HiSilicon Kirin 955 | Characteristic | AMD EPYC Embedded 3251 |
LPDDR4, LPDDR3 | Memory | DDR4-2666 |
Max. Memory | ||
2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
-- | Max. Bandwidth | 42.7 GB/s |
No | ECC | Yes |
-- | L2 Cache | 4.00 MB |
-- | L3 Cache | 16.00 MB |
-- | PCIe version | 3.0 |
-- | PCIe lanes | 32 |
-- | PCIe Bandwidth | 31.5 GB/s |
Thermal ManagementThe TDP (Thermal Design Power) of a processor specifies the required cooling solution. The HiSilicon Kirin 955 has a TDP of --, that of the AMD EPYC Embedded 3251 is 55 W. |
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HiSilicon Kirin 955 | Characteristic | AMD EPYC Embedded 3251 |
-- | TDP (PL1 / PBP) | 55 W |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | -- |
-- | Tjunction max. | 105 °C |
Technical detailsThe HiSilicon Kirin 955 has a 0.00 MB cache, while the AMD EPYC Embedded 3251 cache has a total of 20.00 MB. |
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HiSilicon Kirin 955 | Characteristic | AMD EPYC Embedded 3251 |
16 nm | Technology | 14 nm |
Chiplet | Chip design | Chiplet |
Armv8-A (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
-- | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 |
-- | Socket | SP4r2 |
None | Virtualization | AMD-V, SVM |
No | AES-NI | Yes |
Android | Operating systems | Windows 10, Linux |
Q2/2016 | Release date | Q1/2018 |
-- | Release price | -- |
show more data | show more data | |
HiSilicon Kirin 955
8C 8T @ 2.50 GHz |
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AMD EPYC Embedded 3251
8C 16T @ 3.10 GHz |
HiSilicon Kirin 955
8C 8T @ 2.50 GHz |
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AMD EPYC Embedded 3251
8C 16T @ 2.50 GHz |
HiSilicon Kirin 955
ARM Mali-T880 MP4 @ 0.90 GHz |
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AMD EPYC Embedded 3251
@ 0.00 GHz |
HiSilicon Kirin 955
8C 8T @ 2.50 GHz |
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AMD EPYC Embedded 3251
8C 16T @ 2.50 GHz |
Devices using this processor |
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HiSilicon Kirin 955 | AMD EPYC Embedded 3251 |
Unknown | Unknown |