Gainward Phantom GeForce GTX 970 4GB Review

Power Consumption

With electricity becoming increasingly expensive across most parts of the world the need for computer components to become power efficient has never been more relevant. Graphics cards are often the most power hungry components inside a desktop system so having an efficient graphics card is very important to keeping power bills under control. Power is often correlated to heat and so lower power consumption means a graphics card is likely to run slightly cooler and put out less heat into your system meaning your other components will run cooler with improved longevity. AMD and Nvidia have both made power consumption an integral part of the way graphics cards dynamically overclock so the need for graphics card vendors to use efficient VRM and PCB designs is becoming important to maximise performance. We take power readings after 5 minutes of three different load scenarios: desktop idle, Furmark load and Unigine Heaven load.

When you overclock the GTX 970 by such a substantial amount a lot of the power efficiency goes kaput. Gainward’s OC GTX 970 Phantom consumes more power than the stock GTX 980: but it’s not substantially higher.