Top 7 China Server CPU Companies 2025
China's server CPU market is undergoing rapid domestic substitution, with Kunpeng (ARM) and Loongson (LoongArch) processors gaining significant market share in government and telecom data centers. The domestic server CPU market exceeds 30 billion RMB. Domestic server processor development, ARM and x86 alternative CPUs for data centers in China
TL;DR: China server cpu market is led by companies like ARM server CPU leader and LoongArch architecture, with x86-compatible CPU driving innovation. Domestic players are rapidly closing gaps across the supply chain.
Top Companies
Kunpeng (鲲鹏) - Huawei
ARM server CPU leaderHuawei's ARM-based server processor family using custom TaiShan cores, offering up to 128 cores in the Kunpeng 920 series. Kunpeng processors power a significant portion of China's government, finance and telecom cloud infrastructure, with over 2 million units deployed in Chinese data centers.
Loongson (龙芯)
LoongArch architectureChina's pioneer in domestically designed CPU architecture with its proprietary LoongArch instruction set. Loongson's 3C5000 series server CPUs offer 16-core performance targeting government desktop and server applications, with completely independent intellectual property free from x86 and ARM licensing restrictions.
Hygon (海光信息)
x86-compatible CPUDevelops x86-compatible server processors based on AMD's Zen architecture through a technology licensing agreement. Hygon's HaiGuang series CPUs offer up to 64 cores and are widely deployed in domestic data centers, providing a migration path for existing x86 software ecosystems without recompilation.
Zhaoxin (兆芯)
x86 desktop/server CPUJoint venture producing x86-compatible CPUs for desktop and entry-level server applications. Zhaoxin's KaiXian processors provide compatibility with existing x86 software while offering improved security features and domestic supply chain assurance for government office automation and enterprise IT systems.
Alibaba T-Head (平头哥) - Yitian 710
Cloud-native CPUAlibaba's custom ARM-based server processor designed specifically for cloud workloads. The Yitian 710 features 128 cores with DDR5 and PCIe 5.0 support, optimized for Alibaba Cloud's internal infrastructure and offered through its ECS instances for e-commerce and AI inference workloads.
Phytium (飞腾)
ARM server CPUDevelops ARM-based server and desktop processors derived from ARMv8 architecture with domestic security extensions. Phytium's S2500 series server CPUs are deployed in Chinese government and military systems, offering 64-core configurations with trusted computing capabilities meeting national security standards.
Rockchip (瑞芯微) - Server initiatives
Primarily known for consumer SoCs, Rockchip is expanding into entry-level server and edge computing processors. Its RK3588 platform is widely used in Chinese edge servers, NAS devices and AI inference appliances, bridging the gap between consumer electronics and data center infrastructure.
Comparison Table
| Company | Cores | Architecture | Deployed |
|---|---|---|---|
| Kunpeng (Huawei) | Up to 128 | ARM TaiShan | 2M+ units |
| Loongson | Up to 16 | LoongArch | Government |
| Hygon | Up to 64 | x86 (Zen-based) | 1M+ units |
| Phytium | Up to 64 | ARMv8+ | Government, military |
| Zhaoxin | x86 desktop/server CPU | Growing | Joint venture producing x86-compatible CPUs for de |
| Alibaba T | Cloud-native CPU | Growing | Alibaba's custom ARM-based server processor design |
| Rockchip | Key player | Growing | Primarily known for consumer SoCs, Rockchip is exp |
Frequently Asked Questions
What is driving China's server CPU domestic substitution?
Government procurement policies requiring domestic CPUs for new data center infrastructure are the primary driver. The US export restrictions on Intel Xeon and AMD EPYC processors to certain Chinese entities accelerated substitution timelines. Huawei's Kunpeng ecosystem has been the most successful, leveraging existing ARM software compatibility while the Kylin and openEuler operating systems provide platform support.
How does Kunpeng performance compare to Intel and AMD server processors?
Kunpeng 920 delivers competitive multi-core performance for cloud and web serving workloads, achieving 80-90% of Intel Cascade Lake performance in SPECrate benchmarks. However, single-thread performance remains 30-40% below current Intel Xeon Scalable and AMD EPYC processors. The gap is narrowing with each generation, and Huawei's next-generation Kunpeng processors are expected to close the single-thread gap significantly.
What software ecosystem challenges do domestic server CPUs face?
The primary challenge is software compatibility across different CPU architectures. Applications optimized for x86 require recompilation and testing on ARM (Kunpeng/Phytium) and LoongArch (Loongson) platforms. Major Chinese cloud providers have invested in compatibility layers and cross-compilation toolchains. The Kylin operating system supports ARM and LoongArch, while openEuler focuses on ARM-based server workloads.
What is the LoongArch architecture and why is it important?
LoongArch is a completely proprietary CPU instruction set developed by Loongson, independent from x86, ARM and RISC-V. It provides China with full architectural sovereignty over its processor designs, eliminating licensing dependency on foreign instruction set architectures. Loongson has released binary translation tools enabling x86 and ARM software to run on LoongArch with acceptable performance for compatibility during transition periods.
How is China addressing the advanced manufacturing bottleneck for server CPUs?
SMIC is producing domestic CPUs at 14nm and 7nm-equivalent nodes using DUV lithography. Kunpeng and Loongson processors are manufactured at SMIC, though volume and yield at advanced nodes remain limited. China is investing heavily in domestic lithography equipment through SMEE and advanced packaging technologies to bridge the manufacturing gap with TSMC and Samsung.