Comment by flohofwoe
4 years ago
It may sound oversimplified, but IME PC games are only optimized to the point where it runs well on the development teams beefy PCs (or in the best case some artificial 'minimal requirement PC with graphics details turned to low', but this minimal requirement setup usually isn't taken very seriously by the development team).
When porting to a game console you can't simply define some random 'minimal requirement' hardware, because the game console is that hardware. So you start looking for more optimization opportunities to make the game run smoothly on the new target hardware, and some of those optimizations may also make the PC version better.
I'd like to second this and add that this is partly why I feel it's important to develop games directly for all your target platforms rather than target one or two consoles and then port the game.