HiSilicon Kirin 955 vs Intel Pentium Gold 6405U

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CPU comparison with benchmarks


HiSilicon Kirin 955 CPU1 vs CPU2 Intel Pentium Gold 6405U
HiSilicon Kirin 955 Intel Pentium Gold 6405U

CPU comparison

HiSilicon Kirin 955 or Intel Pentium Gold 6405U - 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 955 has 8 cores with 8 threads and clocks with a maximum frequency of 2.50 GHz. Up to GB of memory is supported in 2 memory channels. The HiSilicon Kirin 955 was released in Q2/2016.

The Intel Pentium Gold 6405U has 2 cores with 4 threads and clocks with a maximum frequency of 2.40 GHz. The CPU supports up to 64 GB of memory in 2 memory channels. The Intel Pentium Gold 6405U was released in Q4/2019.
HiSilicon Kirin (29) Family Intel Pentium (150)
HiSilicon Kirin 950 (2) CPU group Intel Pentium 6000 (1)
4 Generation 10
Cortex-A72 / Cortex-A53 Architecture Comet Lake U
Mobile Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The HiSilicon Kirin 955 is a 8 core processor with a clock frequency of 2.50 GHz. The Intel Pentium Gold 6405U has 2 CPU cores with a clock frequency of 2.40 GHz.

HiSilicon Kirin 955 Characteristic Intel Pentium Gold 6405U
8 Cores 2
8 Threads 4
hybrid (big.LITTLE) Core architecture normal
No Hyperthreading Yes
No Overclocking ? No
2.50 GHz
4x Cortex-A72
A-Core 2.40 GHz
1.80 GHz
4x Cortex-A53
B-Core --

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

HiSilicon Kirin 955 Characteristic Intel Pentium Gold 6405U
-- AI hardware --
-- AI specifications --

Internal Graphics

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.

ARM Mali-T880 MP4 GPU Intel UHD Graphics 610
0.90 GHz GPU frequency 0.30 GHz
0.90 GHz GPU (Turbo) 0.95 GHz
Midgard 4 GPU Generation 9.5
16 nm Technology 14 nm
2 Max. displays 3
4 Compute units 12
64 Shader 96
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory 32 GB
11 DirectX Version 12

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-T880 MP4 GPU Intel UHD Graphics 610
Decode / Encode Codec h265 / HEVC (8 bit) Decode / Encode
Decode Codec h265 / HEVC (10 bit) Decode / Encode
Decode / Encode Codec h264 Decode / Encode
No Codec VP9 Decode / Encode
Decode / Encode Codec VP8 Decode / Encode
No Codec AV1 No
No Codec AVC Decode / Encode
No Codec VC-1 Decode
Decode / Encode Codec JPEG Decode / Encode

Memory & PCIe

The HiSilicon Kirin 955 supports a maximum of GB of memory in 2 memory channels. The Intel Pentium Gold 6405U can connect up to 64 GB of memory in 2 memory channels.

HiSilicon Kirin 955 Characteristic Intel Pentium Gold 6405U
LPDDR4, LPDDR3 Memory LPDDR3-2133, DDR4-2400
Max. Memory 64 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
-- Max. Bandwidth 38.4 GB/s
No ECC No
-- L2 Cache --
-- L3 Cache 2.00 MB
-- PCIe version 2.0
-- PCIe lanes 12
-- PCIe Bandwidth 6.0 GB/s

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The HiSilicon Kirin 955 has a TDP of --, that of the Intel Pentium Gold 6405U is 15 W.

HiSilicon Kirin 955 Characteristic Intel Pentium Gold 6405U
-- TDP (PL1 / PBP) 15 W
-- TDP (PL2) --
-- TDP up --
-- TDP down 12.5 W
-- Tjunction max. 100 °C

Technical details

The HiSilicon Kirin 955 has a 0.00 MB cache, while the Intel Pentium Gold 6405U cache has a total of 2.00 MB.

HiSilicon Kirin 955 Characteristic Intel Pentium Gold 6405U
16 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
-- Socket BGA 1528
None Virtualization VT-x, VT-x EPT, VT-d
No AES-NI Yes
Android Operating systems Windows 10, Windows 11, Linux
Q2/2016 Release date Q4/2019
-- Release price 193 $
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Rate these processors

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Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
HiSilicon Kirin 955 (56%)
Intel Pentium Gold 6405U (100%)
⌀ Multi core performance in 1 CPU benchmarks
HiSilicon Kirin 955 (74%)
Intel Pentium Gold 6405U (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 955 HiSilicon Kirin 955
8C 8T @ 2.50 GHz
330 (56%)
Intel Pentium Gold 6405U Intel Pentium Gold 6405U
2C 4T @ 2.40 GHz
592 (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 955 HiSilicon Kirin 955
8C 8T @ 2.50 GHz
989 (74%)
Intel Pentium Gold 6405U Intel Pentium Gold 6405U
2C 4T @ 2.40 GHz
1340 (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 955 HiSilicon Kirin 955
ARM Mali-T880 MP4 @ 0.90 GHz
122 (67%)
Intel Pentium Gold 6405U Intel Pentium Gold 6405U
Intel UHD Graphics 610 @ 0.95 GHz
182 (100%)

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 955 HiSilicon Kirin 955
8C 8T @ 2.50 GHz
0 (0%)
Intel Pentium Gold 6405U Intel Pentium Gold 6405U
2C 4T @ 2.40 GHz
2329 (100%)

Devices using this processor

HiSilicon Kirin 955 Intel Pentium Gold 6405U
Unknown Lenovo Ideapad 3 17IML05

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