China's Hygon Details C86-5G: A 128-Core X86 CPU with Advanced Features and Four-Way SMT
Mojibake Tengu writes:
The TECHPOWERUP reports:
Chinese server CPU maker Hygon, which owns a Zen core IP from AMD, has put a roadmap for C86-5G, its most powerful server processor to date, featuring up to 128 cores and an astonishing 512 threads. Thanks to a complete microarchitectural redesign, the new chip delivers more than 17 percent higher instructions per cycle (IPC) than its predecessor. It also supports the AVX-512 vector instruction set and four-way simultaneous multithreading, making it a strong contender for highly parallel workloads. Sixteen channels of DDR5-5600 memory feed data-intensive tasks, while CXL 2.0 interconnect support enables seamless scaling across multiple sockets. Built on an unknown semiconductor node, the C86-5G includes advanced power management and a hardened security engine. With 128 lanes of PCIe 5.0, it offers ample bandwidth for accelerators, NVMe storage, and high-speed networking. Hygon positions this flagship CPU as ideal for artificial intelligence training clusters, large-scale analytics platforms, and virtualized enterprise environments.
It is not clear to me where Hygon CPUs are actually made, but since the processor features instructions optimized for Chinese government obligatory encryption algorithms, it's most probably SMIC, not TSMC, for trust reason. 4-way SMT is very interesting, not even AMD can pull that just now.
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