Yeh my card is doing the same. Temp never goes above 73c but core clock is dropping down to 800mhz now and again and causing visual screen freezes for a millisecond. Why is it throttling if the temp is ok?
This is why its throttling
http://www.extremetech.com/gaming/1...blem-but-nvidias-smear-attack-is-heavy-handed
So i'd definitely recommend locking the core at 1077mhz or 978mhz depending what version of the card youve got
