The Corsair Crystal 280X RGB is indeed large enough to fit an R9 280X, and AMD isn't really using that name anymore so why not just poach it?  As with the Air 240, the case has two compartments, one for your motherboard and add in cards, with a separate one behind to hold your PSU as well as fans or even a radiator.  RGB addicts will love the pair of LL120 RGB fans and Lighting Node Pro controller.  Take a peek at this new case over at TechPowerUp.

"The Corsair Crystal 280X RGB takes the idea behind the Air 240, and the classy looks and material mix of the Crystal family, and marries them in an even more compact, powerful, and beautiful enclosure that includes not only better liquid-cooling compatibility but also features Corsair's retail-grade LL120 RGB fans and the Lightning Pro Node."

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CASES & COOLING