leeb2013 :
ps Crysis 3 takes 40-60% CPU @ 3.4GHz vs BF4 takes 100% @ 4.5GHz with no players, even 100% @ 4.7GHz.(I5-3570k) IF you have the GPUs to handle the frame rate. If it's GPU limited, then CPU usage will drop.
Sre you running AMD cards with PhysX?
Because I didn't have 100% usage on my CPU ever in BF4, went to 50% on average.-I think peaked around 75%, don't recall. Running nVidia with PhysX by GPU. Just curious.
Ah I see you have an i5 quad core. Where I'm running an 8 core. And if you run PhysX, you can only run on CPU-since you have an AMD GPU, and PhysX is very demanding from the CPU, especially in BF4, where theres all that smoke after the building falls.