(07-23-2014, 04:27 AM)epixoip Wrote: USB risers don't actually use USB, they're still PCI-e. running off of a x1 slot will increase host->device transfer times, but not by that much.
well in video game sense it can seriously nerf performance. Also host transfer times is not necessary the phrase to use.
Does this just load files to vram and crunch them then transfer? or is it constantly streaming like video games?
If it loads a batch then crunches it and the loading of a batch is on and off and not constant then that isn't the issue. FYI 1x is slower than USB 3.0. 1x doesn't off much bandwidth when you are dealing with cutting edge CPUs.
Also not increase a lot is false....16x the difference is a lot.