Legit Reviews compared the NVIDIA GeForce GTX 275 against the ATI Radeon HD 4890
>> NVIDIA GeForce GTX 275 Versus ATI Radeon HD 4890
AMD and NVIDIA usually do not launch graphics cards on the same day, but today is a new day and that is exactly what has happened. AMD is announcing the Radeon HD 4890 graphics card, which is powered RV790 GPU and arch rival NVIDIA is releasing the GeForce GTX 275 graphics card.
>> NVIDIA GeForce GTX 275 Versus ATI Radeon HD 4890