So I did a first Heaven run with 1142MHz as my clock speed (power target is maxed, overwise not overvolted not is the memory OC'd) and I got these results: So I got a scored 831 @ 1142 MHz. Then I ramped it up to 1144MHz. And I got a lower score. I thought that the lower performance was a sign of minor instability, so I reran the test at 1142MHz. This time I noticed that I was getting the same error where the results placed my Intel HD graphics before my ASUS GTX 670. The last 2 runs seemed to have results corresponding to the clock difference, but the fact that my first run seemed to beat them both significantly and not have the error confuses me. What is happening? How can I fix it?