Subject: Systems | September 19, 2017 - 06:57 PM | Jeremy Hellstrom
Tagged: 7351P, amd, EPYC
Patrick Kennedy of Serve The Home has just published his server-centric test EPYC test results and in his own words, "while AMD is very competitive at the high-end, its mainstream offerings are competing with de-featured Xeon Silver CPUs and absolutely obliterate what Intel is offering."
The EPYC 7351P, which should sell for roughly $750 was tested against Intel's Xeon Silver 4108 which runs about $440 in various server applications such as GROMACS, OpenSSL and even a chess benchmark. The tests were done with single socket EPYCs, the "P" series, which are offered at a significant discount when compared to AMD's dual socket family; benchmarked against Intel's Xeon Silver in both single and dual socket configurations. The only time that the Xeon's performance came close to the single socket 7351P were when they were configured in dual socket systems, even then AMD's EPYC chip came out on top, often by a significant margin.
Raw performance is not the only advantage AMD offers on EPYC, the feature sest also far outstrips the somewhat watered down Xeon Silver family. The single socket 7351P offers 128 PCIe lanes while a dual socket Xeon Silver can only offer 96 and EPYC can handle up to 2TB of DDR4-2666 in its eight channel memory controller whereas Intel is limited to 1.5TB DDR4-2400 in a dual socket server nor can it support dual AVX-512 nor Omni-Path fabric.
Intel does have some advantages that come with the maturity of their platform, including superb NVMe hotswap support as well as QuickAssist and they do have higher end Xeon Gold chips which include the aforementioned features that the Xeon Silver line lacks, however they are also significantly more expensive than EPYC.
You can expect more tests to appear in the future as STH invested a lot of money in new hardware to test and as the tests can take days to complete there will be some delay before they have good data to share. It is looking very positive for AMD's EPYC family, they offer an impressive amount of value for the money and it will be interesting to see how Intel reacts.