Our Keithley Integra unit suffered a failure several weeks ago and is still in for repair, so today we have to measure power consumption at the socket via a calibrated meter – system wide.
Power results were measured at idle and when loading the system in the final ‘combined' test in 3DMark 11.
You will need a hefty 1000W+ supply if you want to power a high end system with two HD7990's in CrossfireX. We recorded an 824 watt power demand from the system under extended load.
Tags Review Sapphire HD7990 Sapphire HD7990 Quad CrossfireX Sapphire HD7990 Quad CrossfireX Review Sapphire HD7990 review
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