@mrkarate - It's the vRAM. It sucks on the GT. Turn down the RAM speed. 88* w/ 100% fan!? That seems VERY high. What are your ambients? I max out at ~72* w/ the 1.1v BIOS mod.

@Gas - I think 850 is doable on high-end air. I've seen others do it w/ less than 1.3v. 900 is even possible, but I've read performance actually drops over 850. These chips don't get that hot w/ a good cooler on them. I'll let you know how it turns out after I do the mod. I'll probably have to wait till Christmas, though, to get all the goodies I need.