Sapphire Radeon R9 285 "Tonga" Pictured from TechpowerUp:
Here are the first pictures of the card AMD hopes to take on NVIDIA's bestselling GeForce GTX 760 with, the Radeon R9 285. This particular one, branded by Sapphire, featuring its Dual-X cooling solution. The R9 285 is based on a brand new chip by AMD, codenamed "Tonga." It's rumored to feature the same stream processor count as one of the "Tahiti" variants, while featuring higher clocks, and a narrower 256-bit wide GDDR5 memory interface, a fact confirmed by this card's marketed 2 GB of memory. Given how marketing material of the R9 285 is ready, its launch may not be far away.
New GPU architecures :).
Given the fact that R9 280X is near GTX770 performance, this might be between GTX770 and GTX780 :)