Indeed a big difference. I would gladly accept this kind of graphics for 60 fps on a low end laptop, too bad it's not an option.
Looks like textures on the Iphone X in that video is at least a quarter of the size, and stuff like grass pops in very close to the character unlike on the PC view
It does indeed. But are lower resolution textures enough to explain the fps/resolution/noise/heat differences between the two devices?
It's the same reason games run better on console than on a desktop with the same specs. It's not only the textures resolution but heavily optimised code for a specific architecture. Here in this case they're probably leveraging graphic instructions on this phone GPU that don't exist on the Intel integrated GPU
PC seems to push at least double the polygons vs iPhone X. Also, on PC trees are animated, shadows are raytraced, and shaders are more complex. But is this PC version on maximum settings? I tried Fortnite on my 2017 Macbook Pro and it runs so hot it actually crashes.