Overclocked HD 4770 catches up with Geforce GTS 250
 

According to our review, the overclocked Radeon HD 4770 brings up to 18.86% performance improvements compared with HD 4770, and outperforms HD 4850 by 9.23%.

HD 4770 OC even outperforms GeForce GTS 250 under 3DMark Vantage, Left 4 Dead and World in Conflict. Especially under Left 4 Dead (1680X1050, 8XAA & 16XAF), HD 4770 OC outperforms by up to 26.01%. Under the other items of COD4, GTA4 and Crysis Warhead, HD 4770 OC lags begind GTS 250 by less than 10%. In general, Radeon HD 4770 OC outperforms GTS 250 by 4.86%, which is really impressive.

http://en.expreview.com/2009/05/06/r...hd-4770.html/1