My gaming OC is 940/1100 or 940/1150 (stock for my XFX BE edition). during mining it is at 1020/300
Damn! 1020 for the GPU core?! Gotta love those better binned cards. What temps are you seeing at that clock rate, and is the clock 100% stable?
No voltage change. These are 6870s! 1020 core is pretty much 100% stable for mining if fan is at least at 45%, but not for gaming. 1040 on a single card was 95% stable for mining, as long as I did not too much GPU related things on my PC at the same time, and fan was at 50%, 1045 same but like 90% stable. After that 1048 was perhaps 85% and 1050 was 50%.
up to 1048 is 100% stable if I put -f 120, 1040 was 98% stable if -f 60 was put