The launch date of Fiji has been confirmed: it will be on June 16 at 9-10 AM (PST) at an E3 event hosted by PCGamer.
AMD technical marketing manager Robert Hallock notes 1GB of HBM takes up 95 percent less board space than the same amount of GDDR5 memory:
About 1GB of HBM memory takes up 95 percent less than the same amount of GDDR5 memory, so you free up a lot of room on a circuit board, said Robert Hallock, technical marketing manager at AMD.The Fiji chip is expected to make its debut as the AMD Radeon Fury and the AMD Radeon Fury X, the later version being the new flagship with a sealed liquid cooling solution. Both versions will feature 4GB of High Bandwidth Memory but it's rumored that a 8GB version may follow towards the end of the summer. There are still a lot of unknowns concerning the price and performance of these cards and AMD isn't really talkative. The only thing we have to go by are yesterday's rumors from Computex that Fury X with current drivers is slightly slower than the GeForce GTX 980 Ti.
“HBM satisfies the appetite for smaller device. There is this appetite for powerful, portable systems… but they don’t want to give up performance either,” Hallock said.
A new era of PC Gaming. Coming 06.16.15. #AMD300
https://t.co/vSGmJSZ8FW
— AMD Radeon Graphics (@AMDRadeon) June 3, 2015
Source: WCCF Tech and VR Zone