Power Consumption:

On top of our graphics performance testing, we have also measured the power consumption of these graphics cards at both idle and load. For this we used our standard test system configuration listed earlier on in the review.

For our idle testing, we left the systems idling on the desktop for ten minutes, recording the average draw at the wall socket. For load testing, we used our benchmark routine from The Elder Scrolls IV: Oblivion and measured the peak power consumption in this section of the title. We tested the cards in a number of other scenarios and this proved to be the most intensive in all cases, so you can consider this to be a worst-case scenario.

Bear in mind that we have disabled all CPU-related power management options in the motherboard's BIOS so that we can highlight exactly how well the GPU's power management features are working (or not).




In terms of power consumption, there isn't much of a difference between the Sapphire Radeon HD 2600 XT GDDR4 and the HIS Radeon HD 2600 XT IceQ Turbo GDDR3 cards. The GDDR3-based HIS HD 2600 XT uses 4W less at idle, but under load we didn't notice any differences as both configurations drew 154W at the wall socket.