X-bit labs:

It has been a traditional assumption that the monitor and system case should be priced comparably. However, the arrival of expensive processors and graphics accelerators made this statement very doubtful. Today we are going to check how well 300-dollar graphics cards can perform in video games in 2560x1600 resolution. We will test Force 3D Radeon HD 4870 and Nvidia GeForce GTX 260.