Entry level card. Has PCI-E x8 nterface. Cheaper versions use DDR3 memory.

Highend card. Based on R423 core. Later replaced by X800 XT PE.

Highend card. GeForce 7800GTX competitor.

Entry level desktop card with DDR2 memory.

Lowend HD2xxx series Radeon.

Replacement of Radeon HD 4830 using faster GDDR5 memories but on 128bit bus with PCB from HD 4870.

Mid-range profi card based on Radeon X800 using R423 core, also has support for 3D glasses.

Mainstream card, GeForce 6600GT competitor.

Tonga GPU and first AMD card supporting delta compression.

HD4870 with GDDR3 memory instead of GDDR5 and lower GPU clock.