Should I get the RX Vega 64 or GTX 1080?

[Scisca]

Errorist76 said:

Scisca said:
From what I've heard, unless AMD crippled memory on Vega 56 in comparison to memory on Vega 64 (we'll know soon), it should turn out to be the card to get. If memory is ok, a simple OC to the same frequency Vega 64 runs at should give performance around 3% lower than Vega 64. All that for $100 less! Vega 56 has the potential to make a huge splash and AMD knows it - they told reviewers to focus on 56 instead of the 64! Watch out for this card, as it can turn into the best choice till Volta comes out. I'll be buying it, since I have a FreeSync ultrawide monitor and AMD makes most sense for me

The problem is overcklocking the R56 results in an even higher power consumption, up to over 50% going by recent tests. Not a viable option on a 300 Watt card.

Vega 56 is a 210W card, Vega 64 is 300W. After overclocking to match the clocks you will still be below 300W on V56.