How much will my phenom ii 830 @ 2.8ghz bottleneck me? The cards I'm looking at are the gtx 660 and 650 ti. I don't think I can OC it since its a prebuilt dell computer and I've seen a bunch of other threads with peopple with the same computer as me not being able to OC anything unless they buy a new MOBO. I want to get as many fps as possible, but I'd like to know weather it would just be overkill to get a gtx 660, for example if it only uses like 50% of its potential and a 650 or 650 ti would be just as good.
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650 ti will be fine
you would be fine with both the cards unless you play games like far cry 3 or battlefield 3 etc......avoiding cpu intensive games should do it for you.