Experiencing similar problems in BF4.
The GPU usage spikes aren't terribly dramatic, but they dip between 80% & 100% every other second.
Here is my setup:
FX-8350 CPU
H80i Cooler
Gigabyte GA990FXA-UD3 MOBO
2 - EVGA 660Ti GPUs in SLI
16GB Corsair Vengeance RAM @ 1600mHz
120GB Kington HyperX SSD
Kingwin 1000W PSU
I bought the Gigabyte Mobo and FX-8350 to create a secondary rig with my 660Ti cards. BF4 ran MUCH better when I had my Asus Maximus V Formula MOBO and i7-2700k CPU.
Reading this thread, I feel like the common denominator here is the FX-8350. Though in theory this CPU shouldn't be the culprit for GPU usage spikes/drops. Not sure what the correct fix is... if there is one. I'd have to do more testing. Not sure if these spikes/drops are exclusive to BF4 yet or not. Need to test more games / scenarios.
