- The Zhaoxin KH-50000 architecture suggests persistent shadows of past ties with AMD
- DDR5 memory channels expand the capacity of 3 TB in server environments
- PCIE 5.0 compatibility offers a remarkable leap in data connectivity
Zhaoxin has presented the Kaisheng KH-50000, his latest server processor that adopts a chiplet-based design that looks a lot like the AMD EPYC line.
This similarity raises doubts about whether architecture reflects independent innovation or is largely based on previous links between Chinese companies and AMD technology.
What makes this launch more intriguing is that Zhaoxin has not yet revealed the power of thermal design, an omission that leaves industry observers wondering how efficient this piece of 96 nuclei will be.
Architecture and design options.
The KH-50000 uses the “Century Avenue” architecture of Zhaoxin, which seems to descend from the previous designs of Centaur Technology.
The chip uses a chiplets arrangement consisting of twelve computing matrices grouped around a large I/O matrix, creating a total of 96 nuclei and 384 MB of L3 cache.
A second model reduces the account to 72 cores but slightly increases the base watch.
Both versions exclude the simultaneous multiprocess, which maintains the number of subprocesses equal to the number of nuclei.
Compared to its predecessor, the KH-40000, the KH-50000 offers compatibility with extended memory and connectivity.
Now admits 12 DDR5-5200 channels, allowing up to 3 TB of memory, a figure that exceeds the maximum of 2 TB of the old DDR4 platform.
The chip also has 128 PCIE 5.0 lanes and 16 PCIE 4.0 lanes, tripling bandwidth opportunities in relation to the previous generation.
Although the SATA and USB ports were cut, the change to USB 3.2 Gen 2 modernizes the remaining connections.
The physical size measures 72 x 76 mm, aligning closely with the Genoa and Bergamo processors of AMD.
It adapts to a LGA Zócalo and can be climbed to 2s and 4S systems, reaching up to 384 nuclei in a single motherboard.
ZPI 5.0 interconnection patented by Zhaoxin provides communication between chips, with the aim of reflecting the scalability offered by AMD Epyc and Intel Xeon platforms.
The KH-50000 is not designed for games or desk work loads because it is strictly positioned for the server segment.
Here, the performance is measured in terms of performance and scalability instead of reference points of consumers.
However, the comparison with the best AMD processor and faster CPUs is inevitable, although China’s internal priorities can import more than compete with Western suppliers.
What remains uncertain is TDP, a critical factor that determines how practical this processor will be for real world implementations.
Through Toms hardware
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