NVIDIA's new GeForce 9800 GTX+ comes with a 55 nm CPU that runs at higher clock speeds, yet consumes less power than the original 65 nm chip. Zotac's Amp! Edition further increases the operating frequencies. Even though the higher clocks make the card faster than the ATI HD 4850, the difference is very small and probably not noticable while gaming.



Link: Techpowerup