3820k @ 4.4ghz 10 hour prime stable.
680 sli (60hz monitor soon to be 120hz in a couple of weeks)
Sabertooth ASUS X79
8gb Corsair vengeance RAM 1600 9-9-9-24
1200w ATX Corsair PSU
Noctua DH14 (Temps never reach about 55c max load)
Now I know the drivers have been a shambles recently with the vsync stutter bug in 304 WHQL so I moved to 304.48 beta drivers. The 59fps fluctuation is still there but I can't notice it now in most games (IE Max Payne 3 or BF3) but I tried running Arma 2 and I get this.....
max FPS 40... I also get low GPU usage in BF3 but that's understandable thanks to the latest June patch that screwed everything up I get dips of 49 fps in Gulf of Oman in BF3 but I can live with that I suppose after paying £800 for two GPU's.... Yes I know I need a 120hz monitor but you'll have to give me a few days for that, even so these two cards should have no problem running these games. Arma 2 is CPU bound I've heard (Disabled Hyperthreading btw so BF3 can work).
Oh and it's not a bottleneck because I get 99% gpu usage on both GPU's in shogun 2.
BTW in the screenshot Vsync is on and ARMA 2 is on max settings with the video memory set to default. View distance is 3600.
Could never run that game maxed, even with my previous 6970 CFX setup....Same performance issue, round about the same FPS I changed the settings in game and at best it made about a 2-5 fps difference, hopefully it's just the game the resolution is running at 1920x1080 btw.