The AMD EPYC 4005 “Grado”” processors launched by AMD in May for entry-level servers offer downright amazing value, performance, and power efficiency over the Intel Xeon 6300 / Xeon E-2400 series competition. Intel’s top-of-stack Xeon 6300 (Xeon 6369P) / Xeon E processors fail to compete with even the mid-tier EPYC 4005 series processors in either performance, power, or cost effectiveness. Among the many advantages to these budget-friendly EPYC processors is having AVX-512 support with a full 512-bit data path compared to the Xeon 6300 series only having AVX2. For providing more insight into the AVX-512 performance impact with the AMD EPYC 4005 series, here are some enabled/disabled comparison benchmarks and how they are positioned relative to the Xeon 6369P server processor.
With the AMD EPYC 4005 series there is up to 16 cores / 32 threads unlike the Xeon 6300 series with its 8 core / 16 thread max, DDR5-5600 ECC memory support compared to DDR5-4800, the “PX” SKUs for 3D V-Cache, and then AVX-512 being one of the significant architectural advantages with these lower-cost Zen 5 server processors.
For today’s article are benchmarks of the EPYC 4345P 8-core / 16-thread server processor at its defaults and then with AVX-512 disabled. The EPYC 4345P matches the core/thread count of the Intel Xeon 6369P top-end processor model. And then similarly at the top-end of the AMD EPYC 4005 series line-up is the AMD EPYC 4585PX with 16-cores / 32-threads with 3D V-Cache. The EPYC 4585PX was also tested with AVX-512 enabled/disabled for showing its impact on performance and power efficiency relative to the Xeon 6300 series.
All of these tests were carried out using Supermicro server platforms and running Ubuntu 25.04 with the Linux 6.14 kernel and GCC 14.2 compiler. No other changes were made during the AMD EPYC 4005 runs besides toggling AVX-512 support on/off via the clearcpuid=304 boot parameter. The Xeon 6369P was tested with its default AVX2 support without any AVX-512 being available to compare. The CPU power consumption was also monitored for each test to assess the AVX-512 impact on power/thermals.
