Power consumption
With each of the graphics cards installed and running, I used a watt meter to measure the power draw of our test systems. The monitor was plugged into a separate power source. The cards were tested at idle in the Windows desktop and under load while running our Doom 3 "heat haze" demo at 1280x1024.

The TurboCache scheme really does seem to save some power consumption. The 6200 with 32-bit/16MB TurboCache pulls about five fewer watts at idle than the 64-bit/32MB version, and both are more efficient at idle than the Radeon X300. Under load, the 6200 with 64-bit/32MB TurboCache does consume a little more power than the X300, though.