AMD is expected to drop its mid-range Radeon R9 380X next month, based on the Antigua XT GPU, it should rock 4GB of GDDR5 spread out across a 256-bit memory bus.
Gamers have been expecting the release of the R9 380X for a while now, ever since the R9 285 was released last year. The Radeon R9 380X should feature 2048 stream processors, 128 TMUs, and 32 ROPS alongside the 4GB of GDDR5 on a 256-bit memory bus. Earlier rumors had the R9 380X pegged to include a 384-bit bus, but it looks like 256-bit is where we'll sit.
AMD is gracing the R9 380X with its GCN 1.2 architecture, providing it with the same iteration of architecture that the Fiji GPU includes - the chip that powers the HBM-powered Fury range of cards, as well as the R9 Nano. As for power consumption, we should expect the Radeon R9 380X to use between 200-220W, with aftermarket designs of the card to sport better coolers, lower temperatures and possibly higher power consumption - depending on the card, of course.