To get an idea of how id Software's latest Doom runs on our test cards, we set the game to use the Ultra preset with 16x anisotropic filtering and 8x TSSAA. We then put the chainsaw to some demons guarding the yellow keycard in the early stages of Doom's Foundry level. Like we did with the rest of our tests, we ran Doom at 1920x1080.
As we discovered in our Radeon RX 460 review, Doom's OpenGL renderer is not kind to Radeons, and the story doesn't change with Polaris 10. The RX 470 and RX 480 both deliver admirable average frame rates, but they trail the super-fast, super-smooth GTX 970 in both average FPS and 99th-percentile frame time numbers.
No card we tested with Doom's OpenGL renderer spent any time past 50 ms or 33 ms, a testament to how smooth and well-optimized Doom is in general. In fact, for the GTX 970, we have to click all the way over to our 8.3-ms chart to see any truly troublesome frames. For perspective, those numbers mean that the GTX 970 spends just 11 seconds of our one-minute test run working on frames that drop its average below 120 FPS.
The Polaris Radeons aren't quite that good with OpenGL, but they do keep the time spent past 16.7 ms to a minimum. Doom's Ultra settings even let the GTX 960 shine a bit, for once, but the R9 380X spends a significant amount of time working on frames that drop its FPS average below 60. That time translates into noticeable slowdowns during gameplay.
Next, let's see what happens when we unleash the fury of Vulkan in Doom.