XFX HD5770 1GB Single Slot in CrossfireX Review

To test power consumption today we are using a Keithley Integra unit and we measure power consumption from the VGA card inputs, not the system wide drain. The best way to get maximum load results is by using Furmark, and even though it is not indicative of a real world situation it shows the limits the card can theoretically demand. The ‘gaming’ results are measured when playing Crysis Warhead and is a more valuable result to take from this.

These results are lower than the previous reference solutions we have tested, around 5-10w less under load. A dual Crossfire X configuration would be consuming around 130W when gaming which is certainly nothing to cause concern when pondering your next quarterly electric bill.

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