Phoronix published a review on the The Best, Most Efficient Graphics Cards For 1080p Linux Gamers
A quote from the article:
Earlier this week I posted a graphics card comparison using the open-source drivers and looking at the best value and power efficiency. In today's article is a larger range of AMD Radeon and NVIDIA GeForce graphics cards being tested under a variety of modern Linux OpenGL games/demos while using the proprietary AMD/NVIDIA Linux graphics drivers to see how not only the raw performance compares but also the performance-per-Watt, overall power consumption, and performance-per-dollar metrics.The Best, Most Efficient Graphics Cards For 1080p Linux Gamers @ Phoronix
I've ran some similar tests like this before, but now with having the latest drivers, it's time for another go: NVIDIA 355.11 and the brand new Catalyst 15.9. It's similar to the open-source comparison earlier this week but with more hardware, more interesting tests, and using these OpenGL 4 proprietary drivers generally relied upon right now by Linux gamers.