Phytium, a Chinese semiconductor company that faced U.S. government sanctions from 2021, has introduced its latest data center processor, the 64-core Feiteng Tengyun S2500. Designed for cloud and high-performance computing applications, this processor features a large-capacity shared L3 cache, enhanced security capabilities for cloud servers, and improved memory subsystem reliability. The Feiteng Tengyun S2500 features 64 FTC661 cores developed by Phytium, which are based on Armv8 ISA. Reportedly, the CPU features 64 MB of L3 cache and 512 KB of L2 per core, bringing the total to 96 MB of processor cache. Compared to the previous generation line, the S2500 brings an L3 cache and TDP of 150 Watts, up from 90 Watts of previous generation.

This is Phytium's first new CPU in several years, raising questions about its production capacity and access to foundries, given its sanctions-related restrictions. It is currently unknown which foundry will manufacture the Feiteng Tengyun S2500, and we expect to hear more about it as (if) units get shipped. So far only display units have made appearance. Nonetheless, the company has continued its hardware development efforts and garnered interest in collaborating with Huawei to unify hardware and software ecosystems, which has yet to come to fruition.