You're speaking as if Pascal is available. It was a paper launch. They still haven't even shown any verifiable demos of it, which AMD did months ago.
Founder Editions (i.e. priced up low supply early samples before production ramp) will be available in 3-5 weeks, but general availability in any volume is likely at least 2 months away.
AMD will announce Polaris before the FEs ship, of that you can be sure.
Also, NVIDIA said less about HDR than AMD did months ago, and again - Pascal DOES NOT DO ASYNCH IN HARDWARE - it is still software. This has been known since P100 was unveiled, and nothing has changed. Go and look at the AotS bench results that have leaked today ... they show the 1080 being roughly 20% faster than 980Ti / Fury X - exactly as expected. If it had hardware asynch the uplift would be significantly more than that.