some more info:
http://gpudesign.bafree.net/radeon-c...70-pcb-picture
Core Clock: 800~900 MHz

Memory Chips: 8 on the front side

Memory bus width: 256-bit

Power Connectors: 8+6 Pin connectors

Power Controller: CHiL CHL82xx Digital PWM

Output ports: 2x DVI | 2x Mini Display Ports | 1x HDMI