Regardless, as you'll see in the video and screenshot gallery, the ray tracing implementation is extremely good - astonishingly so for a launch title on a brand new console. This is exciting new technology in the console space and it's really just the beginning. Of course, RT comes with a requisite hit to performance, so what does this mean for the rest of the presentation? Well, the fidelity mode delivers a native 4K output at 30 frames per second, which is combined with Insomniac's brilliant temporal upscaling solution for a supremely crisp image. You wouldn't think this is necessary at 4K, but this combination eliminates most aliasing and there is a tangible boost in clarity across the game when compared to PlayStation 4.