- Zhaoxin KH-50000 structure suggests lingering shadows of previous AMD ties
- DDR5 reminiscence channels increase capability to 3TB in server environments
- PCIe 5.0 help delivers a notable leap in information connectivity
Zhaoxin has launched the Kaisheng KH-50000, its newest server processor which adopts a chiplet-based design intently resembling AMD’s EPYC line.
This similarity raises questions on whether or not the structure displays unbiased innovation or builds closely on earlier hyperlinks between Chinese language corporations and AMD know-how.
What makes this launch extra intriguing is that Zhaoxin has but to reveal the thermal design energy, an omission which leaves business watchers questioning how environment friendly this 96-core half shall be.
Structure and design selections
The KH-50000 makes use of Zhaoxin’s “Century Avenue” structure, which seems to descend from Centaur Know-how’s earlier designs.
The chip makes use of a chiplet association consisting of twelve compute dies grouped round a big I/O die, creating a complete of 96 cores and 384MB of L3 cache.
A second mannequin cuts the rely right down to 72 cores however raises the bottom clock barely.
Each variations exclude simultaneous multithreading, which retains the thread rely equal to the core rely.
In comparison with its predecessor, the KH-40000, the KH-50000 gives expanded reminiscence help and connectivity.
It now accommodates 12 channels of DDR5-5200, permitting as much as 3TB of reminiscence, a determine that surpasses the 2TB most of the older DDR4 platform.
The chip additionally introduces 128 PCIe 5.0 lanes and 16 PCIe 4.0 lanes, tripling bandwidth alternatives relative to the earlier technology.
Whereas SATA and USB ports had been trimmed, the shift to USB 3.2 Gen 2 modernizes the remaining connections.
The bodily footprint measures 72 x 76 mm, aligning intently with AMD’s Genoa and Bergamo processors.
It matches an LGA socket and might scale into 2S and 4S techniques, reaching as much as 384 cores on a single motherboard.
Zhaoxin’s proprietary ZPI 5.0 interconnect offers communication between chips, aiming to reflect the scalability provided by AMD EPYC and Intel Xeon platforms.
The KH-50000 will not be designed for gaming or desktop workloads as a result of it’s strictly positioned for the server phase.
Right here, efficiency is measured in throughput and scalability relatively than shopper benchmarks.
Nevertheless, comparability to the perfect AMD processor and the quickest CPUs is inevitable, though China’s home priorities could matter greater than competing with Western distributors.
What stays unsure is the TDP, a vital issue that determines how sensible this processor shall be for real-world deployments.
Through Toms {Hardware}
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