Does PCIe 2.0 bottleneck GPU performance

harryface · 2 Mar 2016 at 10:31

I have recently upgraded my GPU to a EVGA 980 SC and am currently using it the 16x port of Asus P8Z68-M PRO. I think my stock 2500k is probably holding my pc back the most.

nick_000000 · 2 Mar 2016 at 16:58

EVGA 980 shouldn't have any bottleneck running through a 16x PCIe 2.0 slot, you can check and confirm using GPUz that it is running at 16x though as a first check. 2500k shouldn't really hold you back, overclocking it to 4GHz fairly easily should be another part of your checklist if you're not already overclocking it.

Gze · 2 Mar 2016 at 17:06

No, maybe a few percent max.

marc2003 · 2 Mar 2016 at 18:42

harryface said:
I think my stock 2500k is probably holding my pc back the most.

Overclock it. :mad:

harryface · 3 Mar 2016 at 08:42

marc2003 said:
Overclock it.

I've had a go a few times, but I don’t have any experience doing it. And every time I seem to try its really unstable. Constant blue screens.