Do FI or NA suffer more from elevation?

[Ekliptix]

I want to know. And why?

edit: for those who don't know, FI = forced induction like a turbo or supersharger. NA = Normally/Naturally Aspirated.

[Alpine Autowerks]

turbo's loose less power with altitude than SC or NA because the boost is controled by an external (to the compressor) system. This makes turbos a closed loop system with feedback (manifold pressure) and therefore it is self compensating to the lower atmospheric pressure (read oxygen).