TechSpot published AMD Radeon R9 Fury X
A quote from the article:
On the heels of delivering its latest round of rebadges with the Radeon 300 series, AMD has launched what may be its most hyped product of 2015. The R9 Fury X employs the GCN 1.2 architecture as the R9 380 but doubles the SPU count, and touts a massive memory bandwidth of 512GB/s thanks to an exciting new memory technology known as HBM.AMD Radeon R9 Fury X Review @ Techspot