R9 390X details leaked: 1024 bit stacked VRAM!!!

[Captain_Tom]

I thought the 390X would be a 290X with the full 3072 SP's and a 15% overclock, but nope apparently it will also feature double the bandwidth!  Look out Maxwell:

http://wccftech.com/amd-feature-generation-hbm-memory-volcanic-islands-20-graphics-cards-allegedly-launching-2h-2014/