That’s not how game development using an engine works… RAGE likely compiles code for at minimum a majority of modern computer hardware with next to no tweaking, and probably the same with Xbox & PlayStation consoles.

Most game engines used on large projects generally are made to handle as much of a variety of hardware as possible with little to no changes in the code – if you make a game using Unreal Engine or Unity for example it will almost certainly be able to work on Xbox, Playstation, and most PCs just fine. Most of the performance optimization for different hardware can then be offloaded to the engine. It’s likely the same with RAGE.