Okay, I realized that you were running with 8xAA I redid my test and got this result. 
These results are with stock settings, I can get ~10fps more with OC'ing the GPU running 1080p ~3fps 2560p
I haven't tried TimeSpy yet, but I will give it a try.

These results are with stock settings, I can get ~10fps more with OC'ing the GPU running 1080p ~3fps 2560p
I haven't tried TimeSpy yet, but I will give it a try.