Zhaoxin
CPUServerReleased Nov 1, 2022

Zhaoxin KH-40000/16

16C/16T

The KaiSheng KH-40000/16 is the 16-core model of Zhaoxin's KH-40000 server processor series, announced in November 2022 alongside the 12- and 32-core versions. It has 32 MB of L3 cache, half that of the 32-core flagship. It uses Zhaoxin's in-house Yongfeng core microarchitecture and the ZPI 3.0 interconnect, which enables dual-socket systems. The series supports DDR4 RDIMM, UDIMM and 3DS RDIMM memory, PCIe 3.0, server-class RAS features, secure boot and hardware acceleration for the Chinese SM2, SM3 and SM4 cryptographic algorithms, and targets cloud computing, databases, storage and hyperconverged systems.

General

Manufacturer
Zhaoxin
Model
Zhaoxin KH-40000/16
Segment
Server
Generation
KH-40000
Codename
Yongfeng
Architecture
x86_64
Microarchitecture
Yongfeng
Release date
Nov 1, 2022

Cores & clocks

Cores / threads
16 cores / 16 threads
Base clock
—
Boost clock
—
TDP (design W)
—
Unlocked
✕ No
L2 cache
—
L3 cache
32 MB
Technology (nm)
16 nm
16 nm

Platform

Socket
—
2-CPU (multi-socket)
✓ Yes
Up to 2 sockets
Integrated GPU
None
Memory type
DDR4
Memory size
—
ECC memory
—
PCIe
PCIe 3.0

Instructions & AI

Instruction extensions
x86-64SSE4.2AVXAVX2SM2SM3SM4VT-x
NPU
None

OS support

Notes
Zhaoxin processors do not appear on Microsoft's Windows 11 supported-processor lists, which cover only AMD, Intel and Qualcomm. macOS is not supported.
All Zhaoxin CPUs →

Server cpus from Zhaoxin announced around the same time as the Zhaoxin KH-40000/16. Add any of them to your compare list to see the specs side by side.