I am not saying that this was the reason I bought it, but I recently purchased a Radeon 9070 and I was surprised how little power this card uses in idle. I was seeing figures between 4W~10W on Windows (sadly slightly more on Linux).

In general this generation of Radeon GPUs seems highly efficient. Radeon 9070 is a beast of a GPU.

They benchmark so well that I’m considering replacing my 3070 with a 9070xt.