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7nm+ and Zen3 architecture AMD Milan EPYC Xiaolong processor exposure

AMDZen3 architecture processor will be launched on the new generation EPYC Xiaolong processor code-named Milan. Foreign media have dug into the Linux system to identify "AMDEngSample: 100-000000114-07_22/15_N", this processor is suspected of AMDZen3EPYC Xiaolong.

The Milan processor that appeared on Linux is obviously an early ES engineering piece, with a 1.5GHz base frequency, which can be accelerated to 2.2GHz. But the core number information did not appear in the identification. As a comparison, the frequency of the ES chip of the previous generation EPYCRome is very similar, but the latter's highest acceleration frequency is 3.4GHz.
According to AMD's latest slide, EPYCMilan is based on 7nm+ technology, uses SP3 interface, provides up to 64 cores and 128 threads, thermal design power consumption is between 120~225W, supports DDR4 memory and PCIe4.0. Because Zen3 focuses on improving performance per watt, AMD believes its performance is definitely better than Intel's IceLake-SP with 10nm process.
Unlike the patching of the Zen2 architecture, AMD has reconstructed the CCX/CCD of Zen3, the cache system has changed a lot, and its performance has been greatly improved compared to Zen2. The average IPC (co-frequency performance) of the AMDZen3 architecture processor is increased by about 15% (rumors are currently optimized to 17%), and it is said that floating-point arithmetic is increased by 50%....
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