A tease of SAPPHIRE's upcoming blue-and-black themed Radeon R9 290X VAPOR-X GPU has me foaming at the mouth... why? Well, it will ship with 8GB of GDDR5 RAM, that's why. We've seen the SAPPHIRE Radeon R9 290X Tri-X, which is a great GPU, but 4GB of RAM really holds it back for monster resolutions like 4K and triple-monitor setups. One of the other changes to the VAPOR-X GPU is the beautiful backplate. This won't do much for most people, but with all of that memory (and dual-sided memory modules) it'll do wonders for temperatures. There's not many more details on this new GPU, but you can bet your bottom dollar we'll get some of these in for some 4K and triple 2560x1440 monitor testing.
Source: SAPPHIRE's upcoming Radeon R9 290X VAPOR-X features 8GB of RAM | TweakTown