The video card we have today is ASUS' highly factory overclocked GeForce 7900 GS based video card: The ASUS EN7900 GS TOP. It features 256 MB of GDDR3 running at 1.44 GHz DDR, which is 120 MHz faster than NVIDIA's recommended reference frequency. The GPU is clocked at 590 MHz, which is factory overclocked from the NVIDIA reference specification of 450 MHz, therefore it is 140 MHz faster right out of the box. That comes out to be a 31% GPU overclock by default.



Link: HardOCP