When running Unigine Heaven at 3840 x 2160, all of the graphics cards are taxed quite hard. The GeForce GTX 780 Ti overall performed the best with an average frame-rate of 19 FPS compared to the Radeon R9 290 at only 12 FPS. The GTX 750 Ti 2GB was running quite odd for this very demanding Unigine Engine test. The numbers for the other graphics cards are about in line with expectations given their GPUs and vRAM capacities.

With Xonotic at ultra quality image settings for the 3840 x 2160, all of the tested modern AMD/NVIDIA GPUs were delivering playable 60+ frame-rates on average with the exception of the GeForce GTX 650. For this popular open-source game, the GeForce GTX 760 and GTX 770 were dominating over the AMD hardware to the point of sharply beating even the Radeon R9 270X and R9 290.

With the "ultimate" image quality settings at 3840 x 2160, only the higher-end Radeon and GeForce graphics cards on their binary Linux graphics drivers were pushing above 60 FPS. The new GTX 750 Maxwell series were among the hardware that couldn't push above 60 FPS at 4K for this Linux game configuration.