Power consumption
We measured total system power consumption at the wall socket using a watt meter. The monitor was plugged into a separate outlet, so its power draw was not part of our measurement. The idle measurements were taken at the Windows desktop with AMD's Cool'n'Quiet CPU clock throttling function enabled. The cards were tested under load running our Quake 4 timedemo using the game's High Quality setting at 1600x1200 resolution. We turned off Cool'n'Quiet for testing under load.

At idle, the power consumption of the GeForce and Chrome cards is comparable. Once we fire up a game, though, the Chrome S27's lower peak power use becomes evident. The MultiChrome rig draws only slightly more power than our test system with a single GeForce 6600 GT installed.