I've been experimenting with 6950's for a few months now, and I've come to the conclusion that they are simply amazing. I'm using a Diamond 6950 2GB reference card at the moment for overclocking, and it's been truly exceptional. I have been able to push this particular card to 1Ghz with the stock reference cooler and it hasn't gone past 57c while running normal benchmarks & games. Here are the settings I'm currently testing: Unlocked shaders on modified 6950 bios. Memory timings un-altered Current Voltage: 1100mV Max Voltage Tested: 1175mV Core @ 1100mV = 1000Mhz Memory @ 1100mV = 1350 Mhz Fan is on a custom profile. It hasn't reached past 50% as the temps haven't gone past 57-59 max. OCCT has reported 0 errors I do not use furmark/kombustor anymore out of fear. I killed a 6950 by putting too much voltage into it I think. Not sure exactly what caused it, but it started permanently artifacting after I pushed it way too hard. The performance difference between 980Mhz and 1Ghz on the core is very small. I've been able to squeeze a few extra numbers out of it but in my opinion it's pointless. The best settings I've come up with are: 1100mv 940 Core 1350 Memory These oc settings are great as I don't need to give it any extra juice, and I can run the fan lower and still get nearly the same performance as 980Mhz+ I'm going to run both cards @ 940Mhz now and do some testing in crossfire with eyefinity @ 5760x1080. Will post benches when I have some free time later this week maybe. Anyone else have a similar experience or any tips with their 6950's? I love these cards. Also keep in mind I have a gtx 570 and had a 470 before it. I was using 570 in SLI but sold one of them to pay for an extra 6950 after I realized how much I love them. The 570's were equally awesome but for some reason I just like the amd cards better.