Even if power is expensive, it only uses that power when you are using it. The whole card is 450W, so maybe 3 hours of intense could be a dollar? The card isn’t going to be running 100% for any game I know. Compared to a slower 250W card, the premium is 1/2 that. With that it’s like you agree to pay an extra dollar for 6 hours of gaming. With expensive electricity. I feel like this is conservative and doesn’t seem to bad for people considering the most expensive consumer card on the market.