It doesn't make sense from GCN1.3 shown alone. Even if it was the cut down version, that doesn't add up.
Also HBM2 at 1000Mhz or 2000MHz also doesn't add up.
HBM2 on the NVIDIA P100 tesla and GP100 Quadro are 1.4Gbps, where as AMD will be using 1.6 and 2.0Gbps. Nowhere is it rated at a Mhz value, even in the JEDEC published specifications.
http://www.anandtech.com/show/9969/jedec-publishes-hbm2-specification
http://www.anandtech.com/show/10527/sk-hynix-adds-hbm2-4-gb-memory-q3
![]()
There is that to. I was more pointing towards the whole slower than a 1080 headline that was going on.