HiSilicon Kirin 620 vs Intel Xeon D-1531

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CPU comparison with benchmarks


HiSilicon Kirin 620 CPU1 vs CPU2 Intel Xeon D-1531
HiSilicon Kirin 620 Intel Xeon D-1531

CPU comparison

HiSilicon Kirin 620 or Intel Xeon D-1531 - 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 Intel Xeon D-1531 has 6 cores with 12 threads and clocks with a maximum frequency of 2.70 GHz. The CPU supports up to 128 GB of memory in 2 memory channels. The Intel Xeon D-1531 was released in Q4/2015.
HiSilicon Kirin (29) Family Intel Xeon D (79)
HiSilicon Kirin 620 (1) CPU group Intel Xeon D-1500 (22)
3 Generation 1
Cortex-A53 Architecture Broadwell
Mobile Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The 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 Intel Xeon D-1531 has 6 CPU cores and 12 threads can calculate simultaneously. The clock frequency of the Intel Xeon D-1531 is at 2.20 GHz (2.70 GHz).

HiSilicon Kirin 620 Characteristic Intel Xeon D-1531
4 Cores 6
4 Threads 12
normal Core architecture normal
No Hyperthreading Yes
No Overclocking ? No
1.20 GHz Frequency 2.20 GHz
-- Turbo Frequency (1 Core) 2.70 GHz
-- Turbo Frequency (All Cores) 2.20 GHz

NPU AI performance

The 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.

HiSilicon Kirin 620 Characteristic Intel Xeon D-1531
-- AI hardware --
-- AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

The HiSilicon Kirin 620 or Intel Xeon D-1531 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.

ARM Mali-450 MP4 GPU no iGPU
0.53 GHz GPU frequency --
0.53 GHz GPU (Turbo) --
Utgard GPU Generation --
28nm Technology
1 Max. displays
4 Compute units --
64 Shader --
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory --
0 DirectX Version --

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.

ARM Mali-450 MP4 GPU no iGPU
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
No Codec h264 No
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
No Codec AVC No
No Codec VC-1 No
No Codec JPEG No

Memory & PCIe

The HiSilicon Kirin 620 can use up to GB of memory in 1 memory channels. The maximum memory bandwidth is --. The Intel Xeon D-1531 supports up to 128 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 34.1 GB/s.

HiSilicon Kirin 620 Characteristic Intel Xeon D-1531
LPDDR3 Memory DDR4-2133
Max. Memory 128 GB
1 (Single Channel) Memory channels 2 (Dual Channel)
-- Max. Bandwidth 34.1 GB/s
No ECC Yes
-- L2 Cache 9.00 MB
-- L3 Cache --
-- PCIe version 3.0
-- PCIe lanes 32
-- PCIe Bandwidth 31.5 GB/s

Thermal Management

The thermal design power (TDP for short) of the HiSilicon Kirin 620 is --, while the Intel Xeon D-1531 has a TDP of 45 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

HiSilicon Kirin 620 Characteristic Intel Xeon D-1531
-- TDP (PL1 / PBP) 45 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The HiSilicon Kirin 620 is manufactured in 28 nm and has 0.00 MB cache. The Intel Xeon D-1531 is manufactured in 14 nm and has a 9.00 MB cache.

HiSilicon Kirin 620 Characteristic Intel Xeon D-1531
28 nm Technology 14 nm
Chiplet Chip design Monolithic
Armv8-A (64 bit) Instruction set (ISA) x86-64 (64 bit)
-- ISA extensions SSE4.1, SSE4.2, AVX2
-- Socket BGA 1667
None Virtualization VT-x, VT-x EPT, VT-d
No AES-NI Yes
Android Operating systems Windows 10, Linux
Q1/2015 Release date Q4/2015
-- Release price 356 $
show more data show more data


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Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
HiSilicon Kirin 620 (13%)
Intel Xeon D-1531 (100%)
⌀ Multi core performance in 1 CPU benchmarks
HiSilicon Kirin 620 (12%)
Intel Xeon D-1531 (100%)

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
HiSilicon Kirin 620 HiSilicon Kirin 620
4C 4T @ 1.20 GHz
102 (13%)
Intel Xeon D-1531 Intel Xeon D-1531
6C 12T @ 2.70 GHz
766 (100%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
HiSilicon Kirin 620 HiSilicon Kirin 620
4C 4T @ 1.20 GHz
505 (12%)
Intel Xeon D-1531 Intel Xeon D-1531
6C 12T @ 2.20 GHz
4255 (100%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
HiSilicon Kirin 620 HiSilicon Kirin 620
4C 4T @ 1.20 GHz
0 (0%)
Intel Xeon D-1531 Intel Xeon D-1531
6C 12T @ 2.70 GHz
898 (100%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
HiSilicon Kirin 620 HiSilicon Kirin 620
4C 4T @ 1.20 GHz
0 (0%)
Intel Xeon D-1531 Intel Xeon D-1531
6C 12T @ 2.20 GHz
4088 (100%)

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
HiSilicon Kirin 620 HiSilicon Kirin 620
ARM Mali-450 MP4 @ 0.53 GHz
32 (100%)
Intel Xeon D-1531 Intel Xeon D-1531
@ 0.00 GHz
0 (0%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
HiSilicon Kirin 620 HiSilicon Kirin 620
4C 4T @ 1.20 GHz
0 (0%)
Intel Xeon D-1531 Intel Xeon D-1531
6C 12T @ 2.20 GHz
7493 (100%)

Devices using this processor

HiSilicon Kirin 620 Intel Xeon D-1531
Unknown Unknown

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