I've been trying to bench my 3dMark06 as high as possible just so I can find my limit. It seems that my graphics card doesn't want to go higher than about 820/1120 with an over-volt to 1.280v without crashing mid-test. Click the 3dmark06 link in my sig for proof. What have other 4870/4850/GTX260 users been able to score, and what clocks have other 4870 owners been able to reach?