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.

Underclocked Radeon X1950 PRO sold as mainstream card.