Oh, shame. I just tried running it in forced 1080p but didn't notice a bit of difference in image quality. Think I'll just leave it in 720p then.
Well hopefully there would be a difference to notice. I just meant that you can't count the resolution of the framebuffer when it's being up-scalled and displayed over a different resolution.
But if it looks fine, you're probably okay. Might as well just leave it at 1080 though.