Will the AMD PHENOM II X4 965 bottleneck SLI GTX 660 ?

griptwister

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Yeah. But not as bad as people will claim. But you'll at least see a more stable frame rate. If you OC, you'll also get better FPS.

And, if you're playing on a 60Hz monitor, anything over 60FPS can cause screen tearing. Which is why I usually turn on VSYNC. But if you want over 60 FPS, 660 SLI can and will provide that, even with your phenom 965. If you want to upgrade CPUs, I would recommend an i5. But AMD SteamRoller CPUs are coming Q1 of next year. So if you can hold off... You'll get better performance for your $$$
 
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I have the same processor with 2 570s in sli and it runs just fine. The only time i overclock is to run benchmarks. for everyday use its fine. Is your motherboard am3+? you could try a 6 or 8 core cpu. If you want to switch over to intel i would go for an i7. i doubt it would bottleneck 1 of those cards however. Your existing processor will overclock to 4ghz at 1.45 volts and run all day long if you need it to. You will need an aftermarket cooler though.