The first thing you’re likely to notice is the visual upgrade from 720p and 30 frames per second to 1080p and 60 frames per second (though you can lock things down at 30 FPS should you choose). Naughty Dog tells us that character textures have been increased by a factor of four, shadows have been doubled (along with a new lighting process), and draw distance is noticeably better.
Motion blur when turning the camera (used to hide slower loading textures) has been significantly reduced, but not eliminated. The game’s gritty, destroyed environments look crisper, which was even more pronounced in the side-by-side comparison. It looks spectacular.