for single threaded apps its quite a balanced system. there should be no bottlenecks.
the limiting factor may be you have a 1080p screen on a card that only supports 1080i natively and has to use a inbuilt driver hack to get 1080p. but thats not a bottleneck its a physical limitation.
if anything i would recommend some cooling. and bump your core by 200-300mhz not for any particular reason. just because you can.