Hi all i'm here on behalf of a friend of mine who's looking to buy a temporary upgrade until Ivy bridge comes out whenever it does. He has some dual core wolfdale cpu atm not sure which but he's looking to grab some sort of core 2 quad so he can play games without totally bottlenecking his 560 ti. I'm not entirely too familiar with this family of processors but any info/offers would be appreciated trying to spend between 75-120ish dollars
Look up what CPU he has and you'll need the motherboard model. You'll want to make sure the mobo is compatible with C2 Quads. And there are two lines of C2 Quads so some motherboards say they're compatible but really just mean the Q6600/6700.
If he's got an E8500 or something like that, he'll be fine in a lot of scenarios. Benchmark with his CPU at stock and benchmark with it underclocked a bit to make sure it's bottlenecking.
Something else is the bottleneck. Some motherboards set the PCI-e to 1x by default. Maybe it needs to be set to 16x manually. Try your CPU at different speeds and see how it benches. Try several benchmarks and see if it's just BC2 or other programs like Furmark as well.
What RAM does he have (configuration and speed?)?
FYI: He could probably hit fsb 400MHz with that CPU to get it to 3.6GHz. Make sure to reduce RAM speed and to monitor temps though.