Alternatives like Hitachi's SH architecture have long since fallen out of favor, and x86 is still a non-factor.

ENGADGET: Editorial: Should your next mobile OS update cost you?

Incidentally, Acura's SH-AWD also makes the RDX the best-handling compact crossover out there, at least until the Porsche Cajun is ready.

WSJ: 2012 Acura TL With SH-AWD Review: A Good Grille and a Better Car Behind It | Rumble Seat by Dan Neil