SLI 970 FTW+ bottlenecked by I7-4770?

[garneroutlaw]

Been troubleshooting for awhile. My SLI cards only go up to 70% utilization with the Witcher III. 3dMARK takes both cards to 95%+. I've troubleshot with EVGA customer service, and they suggested that I am bottlenecked by my CPU. I am pretty surprised an I7-4770 would bottleneck SLI 970s to 70%. Any thoughts? Also, if that is the case, if I were to sell the 4770 for the 4770k and overclock it, would I still expect a bottleneck or could I get all 100% utilization out of the cards. My motherboard is Z87 chipset, so I am limited to the 4770k. Thanks.

 

[garneroutlaw]

Seems my CPU usage never exceeded 75% on CPU1, 42% on CPU2, 65% on CPU3, 42% on CPU4, 66 on CPU5, 50% on CPU6, 69% on CPU7, 53% on CPU8. Doesn't look like a bottleneck to me. Any suggestions?

 

[garneroutlaw]

Forgot to mention the details. Playing on ultra, hairworks off. Seeing dips down to 45 FPS with SLI 970s due to the low GPU utilization. Specs: I7-4770, SLI 970 FTW+, EVGA Supernova G2 750 gold, 8 GB RAM, EVGA Z87 Classified.

 

[danisnotonfire]

You shouldn't be bottlenecked, and if those are your CPU usages then it's likely not a bottleneck. Also with a Z87 you can use the newer Haswell Refresh chips as well, just as long as you have a supported BIOS.

 

[garneroutlaw]

Any idea why my GPUs are running at 70% for the Witcher 3?