Sounds like you're still on the stock bios to me. I'm able to run 1.3v 1215/1750 and i don't get any throttling at 20%. So if you can get throttling with lower clock and voltage on a game that is not at all demanding them something is not right there. I also have no issues waking up from sleep.
GPU-Z is reporting 925/1250 default clock, so I guess it might be an oddity of my setup like Tommy suggests. I am very happy with the performance so I can just tinker with things and try and figure out what is happening. BTW, I appreciate all your help, advice and BIOSes in this thread .