[ Branimir Maksimovic @ 21.08.2019. 01:41 ] @
For those wondering how ARM and IBM POWER hardware stack up against AMD's new EPYC "Rome" processors and that of Intel's existing Xeon "Cascade Lake" processors, here is a round of tests from the POWER9 Talos II, Ampere eMAG, and Cavium ThunderX in looking at the cross-architecture Linux CPU performance currently in the server space.
The Talos II server with dual IBM POWER9 22-core servers ended up delivering performance around that of the EPYC 7551 previous-generation Naples processor. But overall the Talos II POWER9 had quite a respectable showing compared to the x86_64 CPUs. While not at the same performance level as Intel Cascadelake or AMD Rome, the benefit of the POWER9 route is the open ecosystem around the processor and for the entire system from the likes of Raptor Computing Systems where they provide schematics and open-source code down to the BIOS/microcode.