HiSilicon Kirin 990 5G | AMD EPYC 9254 | |
CPU comparisonHiSilicon Kirin 990 5G or AMD EPYC 9254 - 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 990 5G has 8 cores with 8 threads and clocks with a maximum frequency of 2.86 GHz. Up to 8 GB of memory is supported in 4 memory channels. The HiSilicon Kirin 990 5G was released in Q3/2019. The AMD EPYC 9254 has 24 cores with 48 threads and clocks with a maximum frequency of 4.15 GHz. The CPU supports up to 6144 GB of memory in 12 memory channels. The AMD EPYC 9254 was released in Q4/2022. |
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HiSilicon Kirin (29) | Family | AMD EPYC (129) |
HiSilicon Kirin 990 (3) | CPU group | AMD EPYC 9004 (21) |
8 | Generation | 4 |
Cortex-A76 / Cortex-A55 | Architecture | Genoa / Genoa-X (Zen 4) |
Mobile | Segment | Desktop / Server |
-- | Predecessor | -- |
-- | Successor | AMD EPYC 9255 |
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CPU Cores and Base FrequencyThe HiSilicon Kirin 990 5G is a 8 core processor with a clock frequency of 2.86 GHz. The AMD EPYC 9254 has 24 CPU cores with a clock frequency of 2.90 GHz (4.15 GHz). |
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HiSilicon Kirin 990 5G | Characteristic | AMD EPYC 9254 |
8 | Cores | 24 |
8 | Threads | 48 |
hybrid (Prime / big.LITTLE) | Core architecture | normal |
No | Hyperthreading | Yes |
No | Overclocking ? | No |
2.86 GHz 2x Cortex-A76 |
A-Core | 2.90 GHz (4.15 GHz) 24x Zen 4 |
2.36 GHz 2x Cortex-A76 |
B-Core | -- |
1.95 GHz 4x Cortex-A55 |
C-Core | -- |
NPU AI performanceThe performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. |
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HiSilicon Kirin 990 5G | Characteristic | AMD EPYC 9254 |
HUAWEI HiAI 2.0 | AI hardware | -- |
Da Vinci Architecture. 1x Ascend Lite + 1x Ascend Tiny | AI specifications | -- |
-- | NPU + CPU + iGPU | -- |
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-G76 MP16 | GPU | no iGPU |
0.60 GHz | GPU frequency | -- |
-- | GPU (Turbo) | -- |
Bifrost 3 | GPU Generation | -- |
7 nm | Technology | |
2 | Max. displays | |
16 | Compute units | -- |
256 | Shader | -- |
No | Hardware Raytracing | No |
No | Frame Generation | No |
4 GB | Max. GPU Memory | -- |
12 | 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-G76 MP16 | GPU | no iGPU |
Decode / Encode | Codec h265 / HEVC (8 bit) | No |
Decode / Encode | Codec h265 / HEVC (10 bit) | No |
Decode / Encode | Codec h264 | No |
Decode / Encode | Codec VP9 | No |
Decode / Encode | Codec VP8 | No |
No | Codec AV1 | No |
Decode / Encode | Codec AVC | No |
Decode / Encode | Codec VC-1 | No |
Decode / Encode | Codec JPEG | No |
Memory & PCIeThe HiSilicon Kirin 990 5G supports a maximum of 8 GB of memory in 4 memory channels. The AMD EPYC 9254 can connect up to 6144 GB of memory in 12 memory channels. |
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HiSilicon Kirin 990 5G | Characteristic | AMD EPYC 9254 |
LPDDR4X-4266 | Memory | DDR5-4800 |
8 GB | Max. Memory | 6144 GB |
4 (Quad Channel) | Memory channels | 12 |
-- | Max. Bandwidth | 460.8 GB/s |
No | ECC | Yes |
-- | L2 Cache | 24.00 MB |
2.00 MB | L3 Cache | 128.00 MB |
-- | PCIe version | 5.0 |
-- | PCIe lanes | 128 |
-- | PCIe Bandwidth | 504.1 GB/s |
Thermal ManagementThe TDP (Thermal Design Power) of a processor specifies the required cooling solution. The HiSilicon Kirin 990 5G has a TDP of 6 W, that of the AMD EPYC 9254 is 200 W. |
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HiSilicon Kirin 990 5G | Characteristic | AMD EPYC 9254 |
6 W | TDP (PL1 / PBP) | 200 W |
-- | TDP (PL2) | -- |
-- | TDP up | 240 W |
-- | TDP down | -- |
-- | Tjunction max. | 100 °C |
Technical detailsThe HiSilicon Kirin 990 5G has a 2.00 MB cache, while the AMD EPYC 9254 cache has a total of 152.00 MB. |
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HiSilicon Kirin 990 5G | Characteristic | AMD EPYC 9254 |
7 nm | Technology | 5 nm |
Chiplet | Chip design | Chiplet |
Armv8-A (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
-- | ISA extensions | SSE4.2, AVX2, AVX-512, BFLOAT16, VNNI |
-- | Socket | SP5 |
None | Virtualization | AMD-V, SVM |
No | AES-NI | Yes |
Android | Operating systems | Windows Server 2022, Linux, Windows 11 |
Q3/2019 | Release date | Q4/2022 |
-- | Release price | 2299 $ |
show more data | show more data | |
HiSilicon Kirin 990 5G
8C 8T @ 2.86 GHz |
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AMD EPYC 9254
24C 48T @ 4.15 GHz |
HiSilicon Kirin 990 5G
8C 8T @ 2.86 GHz |
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AMD EPYC 9254
24C 48T @ 3.90 GHz |
HiSilicon Kirin 990 5G
8C 8T @ 2.86 GHz |
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AMD EPYC 9254
24C 48T @ 4.15 GHz |
HiSilicon Kirin 990 5G
8C 8T @ 2.86 GHz |
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AMD EPYC 9254
24C 48T @ 3.90 GHz |
HiSilicon Kirin 990 5G
ARM Mali-G76 MP16 @ 0.60 GHz |
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AMD EPYC 9254
@ 0.00 GHz |
HiSilicon Kirin 990 5G
8C 8T @ 2.86 GHz |
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AMD EPYC 9254
24C 48T @ 2.90 GHz |
HiSilicon Kirin 990 5G
8C 8T @ 2.86 GHz |
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AMD EPYC 9254
24C 48T @ 2.90 GHz |
Devices using this processor |
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HiSilicon Kirin 990 5G | AMD EPYC 9254 |
Unknown | Unknown |