So the OP basically confirmed what many of us have been saying for a long time: most CPUs are fast enough or faster than 90% need, and you won't see any perceptible difference in most tasks outside of benchmarks. Still rocking a Q9450 and 5870 without issues. The x86 PC market plateaued some time ago and that's part of the reason sales are stale. I won't be replacing this rig until it dies. Yes, I've used Sandybridge.