HD2900 XT replacement on new process and new core with some new features.

Lower clocked Radeon HD 3870 using slower GDDR3 memory.

Mainstream DX10.1 card.

Hi-end card from 2007. First GPU with 512-bit memory bus on market. Some versions have even faster GDDR4 memory and 1GB VRAM.

Lowend AM2 chipset later used also on 754/AM3/AM3+ motherboards.

Lower clocked Radeon HD 2900 XT.

HD 2900 PRO with less shaders, pipelines and only 256-bit memory bus.

Mainstream DirectX 10 card with GDDR3 or with faster GDDR4 memory.

Mainstream DirectX 10 card.

Mainstream replacement of Radeon X1900 GT.