If I am not overclocking a gtx 480, just using it regularly, would I need to invest in a cooler for it?
I was originally looking at a gtx 560 ti, but this is obviously way more overpowered.
Ill be running an i5-2500k and 16gb of ram.
Thanks for the help!
GTX 480's are notorious for running hot, I have 2 personally. I have overclocked them both but I have aftermarket coolers on mine. They don't start thermal limiting until 102C area. If you are seeing 70-80's you should be fine.
The easy way to test the max temps you would see is get Furmark and run that for 30mn. That would be the max you could possibly see for heat and power draw. You will almost assuredly never see those temps in normal gaming/usage.