Zhaoxin has finally launched its KH-50000 CPUs for servers, offering up to 96 cores and a chiplet design for the domestic Chinese markets.
Zhaoxin Embeds Multiple Chiplets On Its KH-50000 Server CPUs, 12 Compute Chiplets With 96 Cores
Back in July, Zhaoxin unveiled its KH-50000 Server CPUs, taking the domestic Chinese segment to a new level with up to 96 cores and a great set of IO capabilities. Today, Zhaoxin is finally launching these chips, and also gave a glimpse of the full-die, which packs 12 Compute chiplets and a massive IO chiplet.
Starting with the specifications, the Zhaoxin KH-50000 Server CPUs will feature up to 96 cores. It is not confirmed if these chips will feature SMT or retain the Non-SMT design of the KH-4000 series, but they will improve the IPC by 30% versus their latest architecture. The top SKU will pack up to 384 MB of cache and feature clock speeds of 2.0 GHz base and 3.0 GHz boost. The CPUs will also adopt the new ZPI 5.0 interconnect, which enables dual and quad-socket systems, so four of these CPUs can offer up to 384 cores on a single motherboard. The new interconnect further bolsters the data bandwidth while offering lower latencies and power consumption.
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
As for IO, Zhaoxin is making a big upgrade with support for 12-Channel DDR5 (ECC) memory, 128 PCIe 5.0 lanes (ZPI/CXL compliant), and 16 PCIe 4.0/SATA/USB lanes. The package and IHS look very similar to the AMD EPYC "Bergamo" lineup. Even the previous KH-4000 CPUs had an IHS and package that looked very similar to AMD's previous EPYC offerings. Their KX-7000 consumer lineup also features an IHS that is very similar to Intel's 12th Gen CPU family.
The Zhaoxin KH-50000 server CPUs will offer a major leap in server performance to China's domestic market. In addition to this, Zhaoxin also unveiled its KX-7000N CPU, which is a follow-up to the KX-7000. This new offering comes packed with a dedicated NPU for faster AI processing.
While KX-7000N simply integrates an NPU within the same SKUs, there are also talks about a next-generation consumer "KX" offering which will be aimed at the "AI PC" segment, offering more CPU cores, stronger computing capabilities, support for PCIe 5.0, a new heterogeneous & high-performance NPU architecture, and much more. Expect more updates from Zhaoxin in the coming quarters.
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