So I'm overclocking my EVGA base-model 460 1gb. I've run it for a couple of months at the clocks of the Superclocked model (850/1700/1000 over 720/900/1000 base) without any visible glitches. It's also been running Folding@Home GPU whenever I'm not gaming, 24/7. No problems there.
Just today, I tried to OC farther, using Precision and its scanner tool, which logs artifacts. This brings us to the main question:
How many graphic artifacts are acceptable?
On the Superclocked clocks, I had about 20 artifacts in 20 minutes, on the ~390 fps stress test. At even slightly higher clocks there were more, and at 840mhz I had none. Will one artifact per minute do anything to my gameplay? How about 10 per minute? 100?
Could you explain any of those variables, or do you just not know what artifacts do to gameplay? That would be fine, but don't bluster.
When you are getting artifacts, that means your system is unstable enough it's producing errors. That also means it can be causing damage to the hardware. You really don't want to have damage to your system for a few extra frames.