Not sure where to drop this thread, here or OSx, so my apologies if it's in the wrong place. I'm putting SSD's in my Mac Pro 5,1. Two separate ones, one for OSx and one for Bootcamp. My question is which OSx should I put on it? I have the 8 core 2.4gHz, with 24gig of ram, and a Radeon R9 280. I'm currently running Yosemite, but didn't know if I should upgrade and what that would do to my machine, since it is an older model. Many thanks, and hopefully I'm starting this thread in the right place.