Rise of the Tomb Raider on PC gets DirectX 12 support for Steam Version
Jurjen Katsman, Studio Head at Nixxes Software, explains why the addition of DirectX 12 support will give Windows 10 gamers a big performance boost versus the older version with DirectX 11:
When using DirectX 11, in situations where the game is under heavy load – for example in the larger hubs of the game – the individual cores may not be able to feed a fast GPU like an NVIDIA GTX 980 or even NVIDIA GTX 970 quick enough. This means the game may not hit the desired frame-rate, requiring you to turn down settings that impact CPU performance. Even though the game can use all your CPU cores, the majority of the DirectX 11 related work is all happening on a single core. With DirectX 12 a lot of the work is spread over many cores, and the framerate of the game will run at can be much higher for the same settings.