id Software's 2016 Doom revival is a blast to play, and it's also plenty capable of putting the hurt on today's graphics cards. We selected the game's Ultra preset with 16X anisotropic filtering and 8X TSSAA and dialed up the resolution to 3840x2160 to see what the GeForce GTX 1080 Ti is capable of.
With Doom's OpenGL rendering path, the GTX 1080 Ti achieves average framerates unlike anything we've ever seen at 4K with ultra settings, and it delivers 99% of its frames within a picture-perfect 16.7-ms window. A+.
Our "time-spent-beyond-X" graphs can be a bit tricky to interpret, so bear with us for just a moment before you go rocketing off to the conclusion. We set a number of crucial thresholds in our data-processing tools—50 ms, 33.3 ms, 16.7 ms, and 8.3 ms—and determine how long the graphics card spent on frames that took longer than those values to render. Those values correspond to instantaneous frame rates of 20 FPS, 30 FPS, 60 FPS, and 120 FPS.
If even a handful of milliseconds start pouring into our 50-ms bucket, we know that the system is struggling to run a game smoothly, and it's likely that the end user will notice severe roughness in their gameplay experience if time starts building up there. Too much time spent on frames that take more than 33.3 ms to render means that a system running with traditional vsync on will start running into equally ugly hitches and stutters. Ideally, we want to see a system spend as little time as possible past 16.7 ms rendering frames, and too much time spent past 8.3 ms is starting to become an important consideration for gamers with high-refresh-rate monitors and powerful graphics cards.
By those measures, the GTX 1080 Ti is practically perfect for gaming at 4K and 60 FPS with Doom. It spends just a sliver of time on frames that take more than 16.7 ms to render, and it spends 10 seconds less of our one-minute test run past 8.3 ms compared to the GTX 1080. That means a smooth and fluid gameplay experience throughout.