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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. We measure results while gaming in Crysis Warhead and record the results.
There is no doubt that the Sapphire HD7970 6GB Toxic Edition was one of the most powerful HD7970's ever released, but it is a power sucking beast. Sapphire increased the GPU Voltage, enhanced the clock speeds significantly and added another 3GB of GDDR5 – all combined these ensure a high power drain. The new R9 280X Vapor X by comparison seems modest in its power requirements.
Tags AMD R9 280x AMD R9 280x review Review Sapphire R9 280X Vapor X Sapphire R9 280X Vapor X Review
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