HiSilicon Kirin 620 | AMD Ryzen 7 PRO 7745 | |
CPU comparisonHiSilicon Kirin 620 or AMD Ryzen 7 PRO 7745 - 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 620 has 4 cores with 4 threads and clocks with a maximum frequency of 1.20 GHz. Up to GB of memory is supported in 1 memory channels. The HiSilicon Kirin 620 was released in Q1/2015. The AMD Ryzen 7 PRO 7745 has 8 cores with 16 threads and clocks with a maximum frequency of 5.30 GHz. The CPU supports up to 128 GB of memory in 2 memory channels. The AMD Ryzen 7 PRO 7745 was released in Q2/2023. |
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HiSilicon Kirin (29) | Family | AMD Ryzen 7 PRO (21) |
HiSilicon Kirin 620 (1) | CPU group | AMD Ryzen 7000 (14) |
3 | Generation | 6 |
Cortex-A53 | Architecture | Raphael (Zen 4) |
Mobile | Segment | Desktop / Server |
-- | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe HiSilicon Kirin 620 has 4 CPU cores and can calculate 4 threads in parallel. The clock frequency of the HiSilicon Kirin 620 is 1.20 GHz while the AMD Ryzen 7 PRO 7745 has 8 CPU cores and 16 threads can calculate simultaneously. The clock frequency of the AMD Ryzen 7 PRO 7745 is at 3.80 GHz (5.30 GHz). |
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HiSilicon Kirin 620 | Characteristic | AMD Ryzen 7 PRO 7745 |
4 | Cores | 8 |
4 | Threads | 16 |
normal | Core architecture | normal |
No | Hyperthreading | Yes |
No | Overclocking ? | Yes |
1.20 GHz | Frequency | 3.80 GHz |
-- | Turbo Frequency (1 Core) | 5.30 GHz |
-- | Turbo Frequency (All Cores) | 4.60 GHz |
Integrated graphics (iGPU)The HiSilicon Kirin 620 or AMD Ryzen 7 PRO 7745 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-450 MP4 | GPU | AMD Radeon Graphics (Raphael) |
0.53 GHz | GPU frequency | 0.40 GHz |
0.53 GHz | GPU (Turbo) | 2.20 GHz |
Utgard | GPU Generation | 9 |
28nm | Technology | 5 nm |
1 | Max. displays | 3 |
4 | Compute units | 2 |
64 | Shader | 128 |
No | Hardware Raytracing | No |
No | Frame Generation | No |
-- | Max. GPU Memory | 8 GB |
0 | DirectX Version | 12 |
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-450 MP4 | GPU | AMD Radeon Graphics (Raphael) |
No | Codec h265 / HEVC (8 bit) | Decode / Encode |
No | Codec h265 / HEVC (10 bit) | Decode / Encode |
No | Codec h264 | Decode / Encode |
No | Codec VP9 | Decode / Encode |
No | Codec VP8 | Decode / Encode |
No | Codec AV1 | Decode |
No | Codec AVC | Decode / Encode |
No | Codec VC-1 | Decode |
No | Codec JPEG | Decode / Encode |
Memory & PCIeThe HiSilicon Kirin 620 can use up to GB of memory in 1 memory channels. The maximum memory bandwidth is --. The AMD Ryzen 7 PRO 7745 supports up to 128 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 83.2 GB/s. |
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HiSilicon Kirin 620 | Characteristic | AMD Ryzen 7 PRO 7745 |
LPDDR3 | Memory | DDR5-5200 |
Max. Memory | 128 GB | |
1 (Single Channel) | Memory channels | 2 (Dual Channel) |
-- | Max. Bandwidth | 83.2 GB/s |
No | ECC | Yes |
-- | L2 Cache | 8.00 MB |
-- | L3 Cache | 32.00 MB |
-- | PCIe version | 5.0 |
-- | PCIe lanes | 24 |
-- | PCIe Bandwidth | 94.5 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the HiSilicon Kirin 620 is --, while the AMD Ryzen 7 PRO 7745 has a TDP of 65 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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HiSilicon Kirin 620 | Characteristic | AMD Ryzen 7 PRO 7745 |
-- | TDP (PL1 / PBP) | 65 W |
-- | TDP (PL2) | 88 W |
-- | TDP up | 170 W |
-- | TDP down | -- |
-- | Tjunction max. | 95 °C |
Technical detailsThe HiSilicon Kirin 620 is manufactured in 28 nm and has 0.00 MB cache. The AMD Ryzen 7 PRO 7745 is manufactured in 5 nm and has a 40.00 MB cache. |
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HiSilicon Kirin 620 | Characteristic | AMD Ryzen 7 PRO 7745 |
28 nm | Technology | 5 nm |
Chiplet | Chip design | Chiplet |
Armv8-A (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
-- | ISA extensions | SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512 |
-- | Socket | AM5 (LGA 1718) |
None | Virtualization | AMD-V, SVM |
No | AES-NI | Yes |
Android | Operating systems | Windows 10, Windows 11, Linux |
Q1/2015 | Release date | Q2/2023 |
-- | Release price | -- |
show more data | show more data | |
HiSilicon Kirin 620
4C 4T @ 1.20 GHz |
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AMD Ryzen 7 PRO 7745
8C 16T @ 5.30 GHz |
HiSilicon Kirin 620
4C 4T @ 1.20 GHz |
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AMD Ryzen 7 PRO 7745
8C 16T @ 4.60 GHz |
HiSilicon Kirin 620
ARM Mali-450 MP4 @ 0.53 GHz |
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AMD Ryzen 7 PRO 7745
AMD Radeon Graphics (Raphael) @ 2.20 GHz |
HiSilicon Kirin 620
4C 4T @ 1.20 GHz |
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AMD Ryzen 7 PRO 7745
8C 16T @ 5.30 GHz |
HiSilicon Kirin 620
4C 4T @ 1.20 GHz |
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AMD Ryzen 7 PRO 7745
8C 16T @ 4.60 GHz |
HiSilicon Kirin 620
4C 4T @ 1.20 GHz |
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AMD Ryzen 7 PRO 7745
8C 16T @ 5.30 GHz |
HiSilicon Kirin 620
4C 4T @ 1.20 GHz |
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AMD Ryzen 7 PRO 7745
8C 16T @ 4.60 GHz |
HiSilicon Kirin 620
4C 4T @ 1.20 GHz |
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AMD Ryzen 7 PRO 7745
8C 16T @ 5.30 GHz |
HiSilicon Kirin 620
4C 4T @ 1.20 GHz |
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AMD Ryzen 7 PRO 7745
8C 16T @ 4.60 GHz |
HiSilicon Kirin 620
4C 4T @ 1.20 GHz |
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AMD Ryzen 7 PRO 7745
8C 16T @ 4.60 GHz |
Devices using this processor |
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HiSilicon Kirin 620 | AMD Ryzen 7 PRO 7745 |
Unknown | Unknown |