Well I have not had any problems at running my Gigabyte GTX 670 SLI 2gb setup. I run them on a i5 3570K with three Asus 27" monitors at 5760x1080. In games that support Eyefinity/Surround they run great and I play my games at max/ultra settings and have not had to lower the settings in any games so far. I run a modest overclock nothing to large and nothing that requires me to up the voltage in any way. I have been running them since January and have been very happy with it so far.