China's new Zhaoxin KH-50000 chiplet CPU: up to 96 cores, 12-channel DDR5, 128 PCIe 5.0 lanes

Chinese server CPU manufacturer, Zhaoxin, has just unveiled its next-gen KH-50000 chiplet CPUs for servers boasting up to 96 cores.

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The new Zhaoxin KH-50000 chiplet CPUs are a serious upgrade over the current KH-40000 offerings, with KH-40000 offerings featuring up to 32 cores, 32 threads, 64MB cache, 8-channel DDR4 memory support, and 128 PCIe 4.0 lanes. The chips feature a chiplet CPU architecture, meaning they come in various SKUs with 16-core and 12-core offerings with CPU clocks of up to 2.5GHz.

Zhaoxin's next-gen KH-50000 chiplet CPUs boast a considerable upgrade in CPU power, unveiled at the Shanghai World Expo 2025 event, based on a chiplet architecture and feature support for an LGA socketed platform. The new Zhaoxin KH-50000 chips feature up to 96 cores (no confirmation on SMT, but we could see 96C/192T like AMD's new EPYC processors).

Alongside the huge 96 cores, we've got the flagship SKU boasting 384MB of cache with CPU clock speeds of between 2.0GHz base and 3.0GHz boost, with the adoption of the new ZPI 5.0 interconnect, enabling dual and quad-socket systems. This means Chinese server companies can use a quad-socket Zhaoxin KH-50000 system with up to 384 cores... all on a single motherboard. The new ZPI 5.0 interconnect also helps out with higher bandwidth, as well as lower latencies and power consumption.

Zhaoxin's new KH-50000 chiplet CPUs also support 12-channel DDR5 (ECC) memory support, 128 PCIe 5.0 lanes, and 16 PCIe 4.0 / SATA / USB lanes. The package and IHS look almost identical to AMD's new EPYC "Bergamo" CPUs which feature 96C/192T of Zen 5 processing power, too.

Zhaoxin KH-50000 vs KH-40000 CPUs:

• 96 Cores vs 32 Cores
• 3.0 GHz vs 2.5 GHz Peak Clocks
• 384 MB Cache vs 64 MB Cache
• 12-Channel DDR5 vs 8-Channel DDR4
• 128 PCIe 5.0 Lanes vs 128 PCIe 4.0 Lanes
• ZPI 5.0 Interconnect vs ZPI 3.0 Interconnect

We don't know when Zhaoxin will unleash its new KH-50000 chiplet server CPUs, but when they do, they're going to offer Chinese companies a serious upgrade in power.