HIS Radeon R9 280X IceQ X2 Video Card Review – Benchmarkreviews
Many say that these R9 and R7 GPU’s are simply re-brands of the 7000 series of AMD video cards but I think there is slightly more to it than that. Yes they are re-branded GPU’s, but they feature faster core speeds and faster memory that the previous generation of 7000 series video cards. Also, AMD have had more time to fine tune their drivers to get the best possible performance out of these new SKU’s.
What’s new in Radeon R9 280X: revamped AMD Graphics Core Next Architecture supports upcoming DirectX 11.2 API, UltraHD 4K resolution-ready via DisplayPort MST streams, and a new AMD CrossFire technology via hardware DMA engine.
via HIS Radeon R9 280X IceQ X2 Video Card Review – Benchmarkreviews