CPU comparison with benchmarks
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-VS- |
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CPU lineage |
HiSilicon Kirin 955 or HiSilicon Kirin 955 – which processor offers superior performance? In this comparison, we examine disparities and assess which of these two CPUs outperforms the other. We delve into technical specifications and benchmark outcomes. The HiSilicon Kirin 955 features 8 processor cores and has the capability to manage 8 threads concurrently. It was released in Q2/2016 and belongs to the 4 generation of the HiSilicon Kirin series. The AMD EPYC 7742 features 64 processor cores and has the capability to manage 128 threads concurrently. It was released in Q3/2019 and belongs to the 2 generation of the AMD EPYC series. To use the AMD EPYC 7742, you'll need a motherboard with a SP3 socket.
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| HiSilicon Kirin 950 |
Group |
AMD EPYC 7002 |
| 4 |
Generation |
2 |
| HiSilicon Kirin 955 |
Name |
AMD EPYC 7742 |
| Mobile |
Segment |
Desktop / Server |
| HiSilicon Kirin |
Family |
AMD EPYC |
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CPU Cores and Base Frequency |
The HiSilicon Kirin 955 has 8 CPU cores and can calculate 8 threads in parallel. The clock frequency of the A-Core is 2.5 GHz. The number of CPU cores greatly affects the speed of the processor and is an important performance indicator. Processors with hybrid (big.LITTLE) architecture strike a balance between performance and power efficiency, making them ideal for mobile devices. The AMD EPYC 7742 has 64 CPU cores and can calculate 128 threads in parallel. The clock frequency of the AMD EPYC 7742 is 2.25 GHz and turbo frequency for one core is 3.4 GHz.
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| 1.8 GHz |
B-Core Frequency |
None |
| None |
None |
3.4 GHz |
| None |
None |
64x |
| hybrid (big.LITTLE) |
Core architecture |
normal |
| 4x Cortex-A72 |
Cores A |
None |
| 8 |
CPU Cores |
64 |
| No |
Overclocking |
No |
| None |
None |
2.25 GHz |
| No |
Hyperthreading |
Yes |
| 2.5 GHz |
A-Core Frequency |
None |
| 4x Cortex-A53 |
Cores B |
None |
| 8 |
Threads |
128 |
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Internal Graphics |
The HiSilicon Kirin 955 has integrated graphics, called iGPU for short. Specifically, the HiSilicon Kirin 955 uses the ARM Mali-T880 MP4, which has 64 texture shaders and 4 execution units. The iGPU uses the system's main memory as graphics memory and sits on the processor's die. The AMD EPYC 7742 does not have integrated graphics.
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| 0.9 GHz |
GPU (Turbo) |
-- |
| 16 nm |
Technology |
-- |
| 11 |
Direct X |
-- |
| 0 bytes |
Max. GPU Memory |
0 bytes |
| 4 |
Execution units |
-- |
| Q2/2016 |
Release date |
-- |
| ARM Mali-T880 MP4 |
GPU name |
|
| 64 |
Shaders |
-- |
| 0.9 GHz |
GPU frequency |
-- |
| Midgard 4 |
Generation |
-- |
| -- |
Max. displays |
-- |
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| |
Artificial Intelligence and Machine Learning |
| -- |
AI specifications |
-- |
| -- |
AI hardware |
-- |
| |
| |
Hardware codec support |
A 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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| Decode / Encode |
h265 / HEVC (8 bit) |
-- |
| No |
VP9 |
-- |
| Decode / Encode |
VP8 |
-- |
| No |
VC-1 |
-- |
| Decode / Encode |
JPEG |
-- |
| Decode / Encode |
h264 |
-- |
| Decode |
h265 / HEVC (10 bit) |
-- |
| No |
AVC |
-- |
| No |
AV1 |
-- |
| |
| |
Memory & PCIe |
| LPDDR3, LPDDR4 |
Memory type |
DDR4-3200 |
| -- |
Bandwidth |
204.8 GB/s |
| No |
AES-NI |
Yes |
| No |
ECC |
Yes |
| pci |
PCIe |
pci |
| 0 bytes |
Max. Memory |
0 bytes |
| 2 |
Memory channels |
8 |
| |
| |
Thermal Management |
TDP indicates the cooling solution needed to effectively manage the processor's heat. It generally provides an approximate indication of the actual power consumption of the CPU itself. The processor has a thermal design power (TDP) of 225 W watts.
|
| None |
TDP (PL1 / PBP) |
225 W |
| -- |
Tjunction max |
-- |
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| |
Technical details |
The HiSilicon Kirin 955 is manufactured using a 16 nm process. A smaller manufacturing process indicates a more contemporary and energy-efficient CPU. A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming. The AMD EPYC 7742 is manufactured using a 7 nm process. In total, this processor boasts a generous 256.0 MB cache.
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| None |
Virtualization |
AMD-V, SVM |
| 16 nm |
Technology |
7 nm |
| ARMv8-A64 (64 bit) |
Instruction set (ISA) |
x86-64 (64 bit) |
|
ISA extensions |
SSE4a, SSE4.1, SSE4.2, FMA3, AVX2 |
| -- |
Part Number |
-- |
| Chiplet |
Chip design |
Chiplet |
| Q2/2016 |
Release date |
Q3/2019 |
| -- |
Release price |
9000 $ |
| 0 bytes |
L2-Cache |
0 bytes |
| Technical data sheet |
Documents |
Technical data sheet |
| 0 bytes |
L3-Cache |
256.0 MB |
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Socket |
SP3 |
| Android |
Operating systems |
Windows 10, Linux |
| Cortex-A72 / Cortex-A53 |
Architecture |
Rome (Zen 2) |
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