HD 2900 PRO with less shaders, pipelines and only 256-bit memory bus.
Zaatharen's card:
ATi R600 GPU
ATi R600 GPU
Sapphire Radeon HD2900 GT
Sapphire Radeon HD2900 GT
Sapphire Radeon HD2900 GT
Sapphire Radeon HD2900 GT
Sapphire Radeon HD2900 GT
Sapphire Radeon HD2900 GT
Sapphire Radeon HD2900 GT
Sapphire Radeon HD2900 GT