New leaks put the AMD Radeon R9 480 at virtually the same level of performance to the Radeon R9 390X graphics card equipped with a silicon manufactured at 14nm and it could cost around $200-250. On the other hand, the Radeon R9 490 equipped with silicon Ellesmere (Polaris 10), could have a very close performance to the NVIDIA GeForce GTX 980 Ti addition to its own Radeon R9 Fury X and it will consume half energy with its price may be set at $350.
AMD Radeon R9 480 alleged performance equal to Radeon R9 390X
This information comes after the first tests of performance from an early GFXBench run based on OpenGL. For the actual performance we have to wait for performance tests based on benchmarking softwares such as 3DMark or actual gaming performance of the Radeon R9 480 graphics compared to other models of the same house in competition. The AMD Radeon R9 480 would use a Ellesmere silicon comprised of 2560 Stream Processors at a frequency of 800 to 1050 MHz (depending on model) with 8 GB of GDDR5 @ 6.25 GHz memory (GDDR5X when available) next to an 256 bits memory interface.