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HiSilicon Kirin 650 | AMD EPYC 7742 | |
CPU comparisonHiSilicon Kirin 650 or AMD EPYC 7742 - 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 650 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 650 was released in Q2/2016. The AMD EPYC 7742 has 64 cores with 128 threads and clocks with a maximum frequency of 3.40 GHz. The CPU supports up to GB of memory in 8 memory channels. The AMD EPYC 7742 was released in Q3/2019. |
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HiSilicon Kirin (29) | Family | AMD EPYC (129) |
HiSilicon Kirin 650 (4) | CPU group | AMD EPYC 7002 (24) |
4 | Generation | 2 |
Cortex-A53 / Cortex-A53 | Architecture | Rome (Zen 2) |
Mobile | Segment | Desktop / Server |
-- | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe HiSilicon Kirin 650 has 8 CPU cores and can calculate 8 threads in parallel. The clock frequency of the HiSilicon Kirin 650 is 2.00 GHz while the AMD EPYC 7742 has 64 CPU cores and 128 threads can calculate simultaneously. The clock frequency of the AMD EPYC 7742 is at 2.25 GHz (3.40 GHz). |
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HiSilicon Kirin 650 | Characteristic | AMD EPYC 7742 |
8 | Cores | 64 |
8 | Threads | 128 |
hybrid (big.LITTLE) | Core architecture | normal |
No | Hyperthreading | Yes |
No | Overclocking ? | No |
2.00 GHz 4x Cortex-A53 |
A-Core | 2.25 GHz (3.40 GHz) |
1.70 GHz 4x Cortex-A53 |
B-Core | -- |
Integrated graphics (iGPU)The HiSilicon Kirin 650 or AMD EPYC 7742 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-T830 MP2 | GPU | no iGPU |
0.90 GHz | GPU frequency | -- |
-- | GPU (Turbo) | -- |
Midgard 4 | GPU Generation | -- |
28nm | Technology | |
2 | Max. displays | |
2 | Compute units | -- |
32 | 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-T830 MP2 | 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 650 can use up to GB of memory in 2 memory channels. The maximum memory bandwidth is --. The AMD EPYC 7742 supports up to GB of memory in 8 memory channels and achieves a memory bandwidth of up to 51.2 GB/s. |
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HiSilicon Kirin 650 | Characteristic | AMD EPYC 7742 |
LPDDR3-933 | Memory | DDR4-3200 |
Max. Memory | ||
2 (Dual Channel) | Memory channels | 8 (Octa Channel) |
-- | Max. Bandwidth | 51.2 GB/s |
No | ECC | Yes |
-- | L2 Cache | -- |
-- | L3 Cache | 256.00 MB |
-- | PCIe version | 4.0 |
-- | PCIe lanes | 128 |
-- | PCIe Bandwidth | 252.0 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the HiSilicon Kirin 650 is --, while the AMD EPYC 7742 has a TDP of 225 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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HiSilicon Kirin 650 | Characteristic | AMD EPYC 7742 |
-- | TDP (PL1 / PBP) | 225 W |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | -- |
-- | Tjunction max. | -- |
Technical detailsThe HiSilicon Kirin 650 is manufactured in 16 nm and has 0.00 MB cache. The AMD EPYC 7742 is manufactured in 7 nm and has a 256.00 MB cache. |
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HiSilicon Kirin 650 | Characteristic | AMD EPYC 7742 |
16 nm | Technology | 7 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 | SP3 |
None | Virtualization | AMD-V, SVM |
No | AES-NI | Yes |
Android | Operating systems | Windows 10, Linux |
Q2/2016 | Release date | Q3/2019 |
-- | Release price | 9000 $ |
show more data | show more data | |
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HiSilicon Kirin 650
8C 8T @ 2.00 GHz |
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AMD EPYC 7742
64C 128T @ 3.40 GHz |
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HiSilicon Kirin 650
8C 8T @ 2.00 GHz |
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AMD EPYC 7742
64C 128T @ 2.80 GHz |
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HiSilicon Kirin 650
8C 8T @ 2.00 GHz |
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AMD EPYC 7742
64C 128T @ 3.40 GHz |
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HiSilicon Kirin 650
8C 8T @ 2.00 GHz |
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AMD EPYC 7742
64C 128T @ 2.80 GHz |
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HiSilicon Kirin 650
8C 8T @ 2.00 GHz |
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AMD EPYC 7742
64C 128T @ 3.40 GHz |
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HiSilicon Kirin 650
8C 8T @ 2.00 GHz |
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AMD EPYC 7742
64C 128T @ 2.80 GHz |
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HiSilicon Kirin 650
ARM Mali-T830 MP2 @ 0.90 GHz |
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AMD EPYC 7742
@ 0.00 GHz |
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HiSilicon Kirin 650
8C 8T @ 2.00 GHz |
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AMD EPYC 7742
64C 128T @ 2.80 GHz |
Devices using this processor |
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HiSilicon Kirin 650 | AMD EPYC 7742 |
Unknown | Unknown |