iATKOS Inside: Tired to wait for my 1080 to be supported on newer Mac OS. Love the card, but Im stuck on High Sierra (delidded 6700k @ 4.85ghz). What should I get in order to keep the same performance on Windows games (I play street fighter 5) 5600xt?

Tired to wait for my 1080 to be supported on newer Mac OS. Love the card, but Im stuck on High Sierra (delidded 6700k @ 4.85ghz). What should I get in order to keep the same performance on Windows games (I play street fighter 5) 5600xt?