The heatsink on this card is huge and I suspect it can take a little more heat. Gaming @ 52°C with a pretty low fan speed allows for some wiggle room.
I went ahead and under clocked it to 722mhz from 742mhz. The Witcher 2 now stutters at settings that my 460 was able to handle just fine, but I was able to play for about an hour and I had no freezes. But again, the frame rate was pretty bleh, when it was smooth it wasn't much better than the 460, and in addition stuttered a lot. When I had the clock at the default, sure the game ran for about 5 minutes before freezing, but it ran very smoothly. So no, I don't wanna keep the core clock that low if I can help it.
One thing I noticed, though, was that according to HWMonitor, the card uses 0.91V when my computer shuts down the monitors (I don't use screen savers, I just have the screens turn off). And on the desktop and in game sits at the max 1.02V. ... I think I may try experimenting and researching on this.
Kindle Reading List (163,457 Locations Completed)
Finished: Aquariums of Pyongyang (2535), Under the Loving Care of the Fatherly Leader (24,074), The Lone Samurai (4753), Nothing to Envy (5349), Shogun (26,263), Eating with the Enemy (9170), Fight Club (3218), River Town (7524), Don Quixote (21,430), The Party(6492), Bravo Two Zero (7340), Rogue Warrior (7602), Mao's Great Famine (11,059), His Dark Materials Omnibus (20,766), Moon Lander (5882)
King Rat (9308)