It is a poorly kept secret that AMD plans to release a new GPU generation next year. It will likely carry the Radeon R9 300-series brand name and until this moment we have come to accept that it will have the new Fiji XT graphics processing unit.
In the past few days there have been new developments in this field and we now know that the new GPU generation will carry the Carribean Islands code name. In addition to that it appears that the flagship GPU that will debut in the Radeon R9 390X graphics card will be known as AMD Bermuda XT. The Fiji XT GPU will be left for the slower Radeon R9 380X.
As of now the Bermuda XT GPU is expected to use the 20 nm tech production process and to be a bit faster that the current GeForce GTX 980 flagship. Sadly there is no information on the architecture and the number of stream processors, ROPs and TMUs but we will report on this as soon as we have more details.
Source: Sweclockers.com