> But are you really pushing the original Xbox to the limit

This is in the context of XBox modding, where “original Xbox” should be interpreted to mean “not an XBox 360”. Halo 2 can run at higher resolutions on a 360, so clarifying that this was a modding project on the original Xbox is helpful.

You have to read it in context. It’s not literally about an unmodded Xbox, it’s a modding project and the target for the mods was an original Xbox.