ATI‘s Radeon HD 4770 is the world’s first anything with a 40nm chip, the RV740. MSRP is just US$99. The main competitor to the Radeon HD 4770 is NVIDIA‘s GeForce 9800 GT. Check out the comparison below and you can see that the HD 4770 whips it and will likely be quite a bit cheaper.
Source: Tom’s Hardware