Well I think "Leaps From Shadows" is right in both posts...
1) the integrated 3000 graphics can beat ANY discrete graphics card at transcoding via "quicksync"
2) I should have done some tests on my own re: overclocking the graphics clock.
I did up the graphics clock and it made NO difference in editing times, but it did make a difference in transcoding. I have settled on a 200 Mhz overclock for now.