WYP
News Guru
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Honestly man it's like AMD's GPU department is broadmoor and they are all Bipolar !
Polaris - small, cheap, good performance, sell like hot cakes.
Vega - big, expensive, hot, slow, crap.
I wish they'd make their sodding mind up !
I've actually read and heard that quite a few miners are still more interested in Polaris. Vega 56 looks good to some of them, but the power draw could theoretically cause high electricity bills, force them to replace their PSU, or add more radiator space to keep temperatures down. From what I've seen, Vega is not that much more efficient than Polaris. It doesn't appear the huge leap AMD were suggesting.
Vega is quite a leap in design. There is no doubting that. However it's still a massive chip which means it consumes a lot of power. The fact that they went from 1050mhz to reference cards being able to nearly hit 1800mhz is quite a feat.
While I could be wrong here, so do correct me if I am, but it's apparent to me that the features that make Vega such an interesting GPU aren't enough. Otherwise AMD would have simply kept the clock speeds at 1450Mhz and thus vastly improved efficiency. But they need the cards to clock higher to squeeze every last drop out, which forces high temperatures and high power consumption for not a great deal of payoff.
Hexus just rather interestingly released a quick review of the ASUS Vega 64 Strix, and it looks decent. 74°C under load. It overclocked to 1980Mhz and 1000Mhz on the memory, which as you said is hugely impressive. But will it actually be worth it? That's the issue I have. If AMD's advancements were so impressive, why bother clocking that high? It's clear to me that it's because it's not enough, not with current drivers.
http://hexus.net/tech/reviews/graphics/109078-asus-radeon-rx-vega-64-strix-gaming/?page=8