By using the GPU-Z Board Power data in conjunction with the 11-game average FPS data we presented earlier in this review, we can work out performance per Watt for each graphics card. This is presented as FPS per Watt.
With power draw and performance pretty much equal between the GamingPro OC and the Founders Edition, it's no surprise to see performance per Watt is also a tie between the two. This means the GamingPro OC does deliver fractionally better performance efficiency compared to the TUF Gaming or Gigabyte Eagle OC, but we're talking the smallest of margins here.