Re:AMD Discloses Initial Zen 2 Details
by Dylan16807 on Monday November 19, 2018 @09:10AM
(#18486479)
> My comment was addressing the parent comment about bandwidth, not latency.
Oh, it is? It really seemed to be about direct vs. non-direct, and nothing else. And that pretty much only affects latency, because it only loads the infinity fabric by about 20-25% to route 16 PCIe lanes to each die.
Because you only have 1/2 the memory and I/O bandwidth on threadripper, if maxing out I/O is your concern, you would likely be better off with a low-end epyc that still had all the memory controllers and pcie lanes wired up.