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Kunpeng 920-6426
General Info
Designer	HiSilicon, ARM Holdings
Manufacturer	TSMC
Model Number	920-6426
Market	Server
Introduction	September, 2018 (announced) January 7, 2019 (launched)
General Specs
Family	Hi16xx
Series	Kunpeng 920
Frequency	2,600 MHz
Microarchitecture
ISA	ARMv8.2 (ARM)
Microarchitecture	TaiShan v110
Transistors	20,000,000,000
Technology	CMOS
MCP	Yes (3 dies)
Word Size	64 bit
Cores	64
Threads	64
Max Memory	1 TiB
Multiprocessing
Max SMP	4-Way (Multiprocessor)
Electrical
TDP	180 W

Hi1620 on exhibit.

Kunpeng 920-6426 is a octatetraconta-core 64-bit ARM server microprocessor introduced by HiSilicon in early 2019. Fabricated by TSMC on a 7nm HPC process based on the TaiSHan v110 microarchitecture, this chip incorporates 64 cores operating at 2.6 GHz with a TDP of 180 W. This chip supports up to 1 TiB of octa-channel DDR4-2933 memory.

Cache

Main article: Ares § Cache

[Edit/Modify Cache Info]

Cache Organization Cache is a hardware component containing a relatively small and extremely fast memory designed to speed up the performance of a CPU by preparing ahead of time the data it needs to read from a relatively slower medium such as main memory. The organization and amount of cache can have a large impact on the performance, power consumption, die size, and consequently cost of the IC. Cache is specified by its size, number of sets, associativity, block size, sub-block size, and fetch and write-back policies. Note: All units are in kibibytes and mebibytes.

L1$ 8 MiB 8,192 KiB 8,388,608 B L1I$ 4 MiB 4,096 KiB 4,194,304 B 64x64 KiB     L1D$ 4 MiB 4,096 KiB 4,194,304 B 64x64 KiB     L2$ 32 MiB 32,768 KiB 33,554,432 B 0.0313 GiB     64x512 KiB     L3$ 64 MiB 65,536 KiB 67,108,864 B 0.0625 GiB     64x1 MiB

Memory controller

[Edit/Modify Memory Info]

	Integrated Memory Controller
	Max Type DDR4-2933 Supports ECC Yes Max Mem 1 TiB Controllers 1 Channels 8 Width 64 bit Max Bandwidth 190.7 GiB/s 195,276.8 MiB/s 204.763 GB/s 204,762.566 MB/s 0.186 TiB/s 0.205 TB/s Bandwidth Single 23.84 GiB/s Double 47.68 GiB/s Quad 95.37 GiB/s Octa 190.7 GiB/s

Expansions

[Edit/Modify Expansions Info]

	Expansion Options
PCIe Revision: 4.0 Max Lanes: 40 Configuration: x16, x8, x4 USB Revision: 3.0 Max Ports: 4 SATA Revision: 3.0 Max Ports: 2

Features

[Edit/Modify Supported Features]

	Supported ARM Extensions & Processor Features
	NEON Advanced SIMD extension CRC32 CRC-32 checksum Extension

Utilizing devices

• HiSilicon D06
• TaiShan 5280
• TaiShan 5290
• TaiShan X6000

This list is incomplete; you can help by expanding it.

Bibliography

• Huawei, Supercomputing 2018
• Huawei. (January 7, 2018). [press release] "Huawei Unveils Industry's Highest-Performance ARM-based CPU Bringing Global Computing Power to Next Level".