In reply to many people
Yes it is a stock (gainward) cooler, no lapping, no AS5.
No artifacts at 95C (there has been a hint of a line every now and then in BF2, but Its only out of corner of my eye, so it could be me :? ).
And yes all of my temps are in C, and 145C is definately my throttle limit.
Different designs will have different limits, based on nm size, package size, and other things I can't think of.
I do get artifacts if I overclock at 90C but haven't tried to figure out if it was memory or core, it would cause a machine restart, so I stopped OC'ing. Theres probably a balance between speed and heat that is stable and going beyond it results in instability.
The point was that I wouldn't be too surprised at a 70-80 load temp on a 6XXX, if the throttle is lower on a 7XXX then i'd assume std safe load temp would be lower.
I've just cranked up all three 120mm fans in my P180, and the idle temp has dropped by 3-4C so that tells me that at low fans speeds the airflow is sufficient but could be better as at high airlfow there is not much difference, either than or my high airlfow is equally rubbish just noisier, but given its a P180, I doubt it.