When the 7970 was announced some one said it was AMD's Fermi. I didn't quite get that because it was a bloody good card (far faster than the 580) but the more time goes on the more I understand it. Basically the 7970 was a pretty hefty die, full of GCN stuff that made it hot and power hungry. And AMD's promise was that it would be fantastic in the future.
And in essence? it sort of was but isn't. IE - they were planning far ahead, and it ended up being too far.
Bulldozer was similar. Forward thinking with a lot of cores that were power hungry. Did it work? no. It was far too soon for devs to shift over to 8 cores. So Bulldozer was a flop, even though when threading correctly it could beat a 2600k. And it remained that way. Support never came. Vishera was pretty bloody good tbh. Near on Westmere core performance only without HT. Again though it needed support and because BD was considered a flop support never came and if it ever did it was too little too late. It certainly wasn't good enough for devs to want to spend the time coding in support for it.
So again, money wasted on tech that was power hungry and hot and overall very disappointing. Do I even need to go through what happened with Fury X? not really no. Briefly - hot power hungry with HBM which mattered not one jot in the real world.
AMD need to stop trying to reinvent the wheel and go with what works. Nvidia did it, I don't understand why they would not take heed of Nvidia's success and carry on making kitchen sinks that cost a fortune and oh, "Might be good in about three years time when the rest of the technology has been left in the dust".
They keep on banging on about 4k. It's all we've seen of Vega. Nothing more, nothing less. It's like they stupidly think that the majority are on 4k already or are about to switch. Yeah, see, doesn't work like that. So again they are forward thinking too much, and by the time people actually DO go to 4k this card will be long in the tooth, HBM2 sat there pretty much wasting space. They've just demonstrated to the world that two Vega are needed for 4k, so there goes your expensive HBM2.
I don't get it. They bought in Raja who is Indian. Frugal, careful, knows how to get something done as cheaply as possible like most Indian companies. This fitted extremely well with the RX 480. Cheap, cheerful, easy to produce, cheap cooler ETC ETC.
So why the f**k is Vega the complete polar opposite? that is the part that I don't get.
AMD - throw the kitchen sink in a skip and go back to what you are known for doing best. Cheap, cheerful, fast, best bang for buck. Stop wasting your time trying to make things for a future that isn't certain.