AMD put the last touches on the Radeon HD 7000 line Monday with the Radeon HD 7850 and 7870 GHz Edition (links active soon). The two aim directly at the mid-range for gamers and are roughly twice the complexity of the 7700 line. The decision gives the 7850 and 7870 a respective 1,024 and 1,280 stream (visual effects) cores, 64 and 80 texture units, and a common 256-bit memory bus with 4.8GHz GDDR5 memory.