XFX Radeon HD 4890

"The XFX Radeon HD 4890 uses the RV790 GPU at 850Mhz and has 1024MB GDDR5 memory running at 3900Mhz. The XFX Radeon HD 4890 has a 256Bit Memory Interface, 800 Pixel Shaders and DirectX 10.1 Support."

"The XFX Radeon HD 4890 put in a great performance against the Gainward Radeon HD 4870 beating it by 13% overall. This is a higher than expected performance increase considering the XFX Radeon HD 4890 only has a 11% higher clock speed and 9% higher memory speed compared to the Gainward Radeon HD 4870. The XFX Radeon HD 4890 was especially impressive running the latest demanding games like Fall Out 3, Fear 2 Project Origin, Left for Dead and Race Driver Grid at over 60 Frames Per Second at Extreme Quality Settings. I can't recommend this video card highly enough because the only other video I think is better is the XFX Radeon HD 4890 XT Extreme Edition."