I have a spare stock mac pro 1,1 I have sitting around for gaming on occasion. X5355 ( 4 core 2.66 ) have gone down in price, you can basically get 2 for less than $350 now. My question is: For gaming, am I going to see any performance increase at all? From what I've read, the answer is likely no, but I wanted to check. Meanwhile the x5365 (4 core 3.0) is still expensive ( $650 - 700 for 2 ). I expect performance would be better with that one but maybe not worth the money. Does anyone have any benchmarks or experience with gaming specifically with these processors?