No I don't think your CPU is bottlenecking, The E8400 is still good CPU moreover I guess that you play in high resolution (1680*1050) so it's your GPU who work but your CPU will be able to be bottleneck if you play in low resolution
I think we don't know. What you did is benchmark your video card. Did you monitor your cpu usage at all during these tests? If you're not pegged at 100% with cpu logging turned on then theres no way your cpu is bottlenecked.
I would like to beleive that if you're bottlenecking an e8400 then you have too much crap running in the background...
unfortunately i didnt monitor my cpu usage, if i ran unigine heaven benchmark (seeing as i have directx11) would that produce a log that looks at my cpu usage?
I dont think that there is too much crap running in the background, i have the standard 4gig that everyone seems to have. I remember reading an article here about windows 7 apparently using more memory than vista most of the comments said their usage of ram when running simple tasks with was about 1 gig, and thats what mine uses when doing similar tasks, so i hope there isnt too much crap running in the background!