Throttling or AM3 scoring inconsistently
I can tell you in my testing with 990FXA-UD7 these was no throttling as I checked with 3d11 window mode as my runs were sometimes wildly fluctuating in scores in AM3. During that process i also discovered that the UD3 had a bios issue with turbo cores not running at max speed so I benched without them and could get the same efficiency in high scores, separate issue I guess