kevinc_48 :
Thanks for the response. I dont plan on overclocking and think that itll bottleneck if i use the 7750. Keep in mind i have a 24 inch monitor and plan on using 1920 x 1080
I do not think you truly understand what bottlenecking means.
Let me make it a bit clearer. You could get an HD7970 if you wish and if the game you are playing is not CPU intensive you will barely see a bottleneck. But lets say you are playing BF3(multiplayer) then even with an HD7770 you would see a bottleneck.
A 2.4GHZ quad like yours will handle any single card as long as the game is not to CPU intensive.
And are you planning to game at 1920*1080 with the HD6770?
If you are, you will struggle in any newer titles. For HD resolution I would suggest at least an HD7850 or up. Even if you have a older quad core.