Sorry for the off-topic and just a friendly advice
Please, don't buy RX or Vega for gaming believe me
No matter what 3dmark or benchmark says over the internet
Buy 1070TI and you will never regret your decision
If you have a way, try the cards somewhere both RX and the 1070TI and you will see what i am talking about
I have nothing against ATI but i have everything against paying for something that won't bring you the same performance for the money it worth.
As i said, just friendly advice
Thanks for the advise, but I know what I'm looking for. I'm fully aware that Polaris and Vega have much higher compute performance than game performance. My reasons for wanting an AMD card is to utilize FreeSync. An RX580 performs a bit better than a 1060 in most games now after optimizations, and if I drop below 75 fps, I can use FreeSync and avoid tearing.
With a higher performance card, the 1070Ti performs a bit better in most VR titles so I'm fine with losing FreeSync for better VR performance.