The AMD Milan-X EPYC 7773X 3D V-Cache is a 64-core, 128-thread server processor with 804 MB of cache that is currently shipping to global data centers. These processors are not yet officially available in retail channels but Chinese content creator kenaide has managed to acquire and test two qualification sample chips on a SuperMicro dual-socket motherboard. The AMD EPYC 7773X is detected as 100-000000504-04 CPU by CPU-Z confirming that it's an engineering sample with clock speeds 100 MHz below the 2.2 GHz and 3.5 GHz base and boost speeds of the official processor.

The processors each feature 32 MB L2, 256 MB L3, and 512 MB of 3D V-Cache for a total of 1608 MB cache in the configuration that was benchmarked with Cinebench R23 and 3DMark. The processors were also "overclocked" to 4.8 GHz using the EPYC Milan/Rome ES/QS Overclocking tool by increasing their power limit to 1500 W from 280 W and boosting the voltage to 1.55 V. This 4.8 GHz clock speed is only a target with the actual speed reached not reported and no benchmarks for the overclocked processors shared.