This is question directly to bethesda company:
Why skyrim was build using i486 standarts, which are 23 years old? I've just bought a game and it doesn't use my processor's features such as sse (1-4.2), avx, mmx and 3DNow. why?
All games are usually presented in 2 standarts: i686 and amd64 (x86-64). What can we do to motivate you building skyrim properly? Maybe Petition?

PS Arisu is not a mage: he cant optimize game 100% properly