How bad will the bottleneck be?

[gamer4real]

Heloo guys.

I am planing to buy an radeon hd 7770 graphic card,but the thing is,that I only can afford for a graphics card,since the games with the current one are really hard to deal with.

Here are my specs:
Intel core2duo e4400 2.0ghz
nvidia 8800GT
PSU:gigabyte suber b 720W
RAM:4GB 2x2 DDR2


I know the bottleneck will be present,but how bad will it be,and will it affect the functioning of my system by any chance?

 

[Akhilcool]

Yeah your gaming performance will be significantly bottlenecked by that CPU. By how much exactly is hard to tell but you may also be slightly bottlenecked by the amount of RAM you have. A new GPU however will improve your gaming by some amount. What I find surprising though is that you have a 720W PSU for that hardware.

 

[gamer4real]

Yeah,I bought this PC a long time ago,and this PSU was on it,I mean its a good one,with plenty of connectors.
Back to the topic.

Will my performance improve in a game such as League of Legends,because I need to record my games,and I cant do that with my current GPU,as the FPS drops to around 30-40,and that is really not smooth

 

[Akhilcool]

I believe LOL relies more on your GPU than your CPU so it should improve your FPS for that game.