I see the question all time but wanted to know with my current hardware, if it's much of a gain. My 955 is OC to 3.8. I have an ASRock 890FX Deluxe 5 mobo, 8 gb ram, HD5770 GPU. If it's not much of an upgrade, it woudl probably be best to put that money into a new GPU.
I do mostly gaming and video encoding.
I do mostly gaming and video encoding.