PC Specs:
Corsair cx600, i5-4690K, MSI Z97 gaming 5 motherboard, 4 4gb hyper x RAM, hyper 212 evo cpu cooler, 2 sapphire rx480 8gb, 1 TB hdd
I have overclocked my cards once (at a lan party. my friends helped me keep up with temps and stuff) other than that one time, my cards stay factory clocked