The back side of each graphics card contains:

AMD FirePro D300 graphics processor

Elpida W2032BBBG 2 GB (8 x 2 Gb = 16 Gb = 2 GB) GDDR5 VRAM

Intersil ISL 6336 6-Phase PWM Controller with Light Load Efficiency Enhancement and Current Monitoring

The front side has the following ICs:

Fairchild Semiconductor DD30AJ

International Rectifier IR3575 Synchronous Buck Gate Driver with integrated MOSFET and Schottky diode