Hey guys, not an owner, but I am thinking seriously about going AMD over my current 5930K X99 set-up.
Biggest issue I'm concerned with though, is that I also have SLI Titan XP GPU's, which on some engines, especially at higher resolutions will completely saturate the 8x / 8x PCIE 3.0 bandwidth, yielding as much as 20 to 30% more FPS when running at 16x /16x PCIE 3.0. (AFAIK it's the first GPU to actually pull off such a feat, along with the 1080ti now I suppose).
I'm not totally sold on the idea that it's a pure bandwidth issue though and may have something to do with how the CPU handles those lanes. (not wholly familiar with how the whole process works at a technical level tbh.)
With Ryzen being an AMD product and given their history on the GPU side using XDMA to utilize the PCIE lanes instead of a bridge, it stands to reason that AMD has a higher understanding of PCIE lanes as a whole, which has me wondering if intel 8x / 8x would be identical to AMD 8x / 8x set-ups.
Does anyone have the ability or knowledge on the subject enough to let me know if Ryzen is in fact superior in how it handles PCIE lanes over Intel, or am I just kind of SOL and need to wait for Skylake X for 40+ pcie lanes or Zen+ utilizing PCIE 4.0 to have a legit upgrade?
Thanks in advance for the info!