If on your computer monitor, then yes, it is in RGB. The rest of your question is asked and answered. You're getting the same output on a normal or simulated system (assuming it runs at a good clip). Because it's on a PC, you happen to get a bonus of at least 480p RGB display. That may be the underlying issue; are you confused as to why the graphics are so blocky? It is the same program and so the same picture, just the emulated one is at double the resolution. Enhancements are only that: enhancements. They pretty up the picture, but aren't needed to achieve a console-perfect picture. Just turn on those scanlines and you'll have that.