Quote Originally Posted by orangekiwii View Post
its artifacting and the heatsink barely keeps the card running under stress (100c at 100% fan speed anyone?)
you shouldnt be having worse temps over time as long as you keep the dust out. the cards shouldnt be using up more heat, and the heatsink and fan are not changing, so in theory the thermal properties are identical from day one. you might want to reset the heatsink and take a vacuum to it.