AMD EPYC 7773X "Milan-X" Performance Continues To Impress With Tremendous Opportunity For Large-Cache Server CPUs

As a reminder, the AMD EPYC 7773X boasts an incredible 768MB of L3 cache per CPU... So 1.5GB in the 2P configuration. The EPYC 7773X is the flagship 64-core / 128-thread part that has a base clock of 2.2GHz and maximum boost clock of 3.5GHz.

The EPYC 7773X still fits within the 225-280W range like the EPYC 7763. So in workloads able to make use of the large L3 cache, even on a performance-per-Watt basis Milan-X is able to charge ahead.

The EPYC 7763 does have a slightly higher base clock of 2.45GHz compared to 2.2GHz on the 7773X, but for most workloads I continue to find the larger cache more than makes up for that difference while keeping to the same TDP.

Over the span of hundreds of benchmarks on Milan-X over the past few months, seldom does the Xeon Platinum 8380 even come close to the 7773X performance and even more rare for the Ice Lake SKU to come out ahead.