hi, I have had my 780 for about three months and I have noticed in many games its performance is erratic. In Dota 2 it had 50 fps but the clock is very low as is gpu usage. I turned off vsync in the nvidia panel but it seems to have no effect. Also, the nvdia panel stops responding when i try to change a setting and this has happened for a moth or two. Lastly, i bought watch dogs, and the gameplay is smooth while gpu is at 99% but then it randomly goes up and down which causes a lot of lag. I am almost regreting my switch to nvidia. The only game that runs smooth and stable is Battlefield 4 ironicaly.
System Specs: Fx-8150
650 watt psu
8 gb ram
Sabertooth 990fx
gtx 780
System Specs: Fx-8150
650 watt psu
8 gb ram
Sabertooth 990fx
gtx 780