Whelp GTX 1080 Ti with same number of cores as Titan XP is out for $699 USD. I guess all the talk of 1070 vs 1080 price/perf and ROI is all moot now.
I'm sure that the 1070 fanboys will still come up with some reason why 1070 is "better".
user foldy on folding forum shared this handy chart
The prices in nvidia store are quite linear:
1080 Ti $700 1100k PPD . 250W
1080 .. $550 . 850k PPD . 180W
1070 .. $400 . 600k PPD . 150W
1060 .. $300 . 350k PPD . 120W
So for each $150 more you get 250k PPD more.
https://docs.google.com/spreadsheets/d/1v5gXral3BcFOoXs5n1M6l_Uo3pZpQYogn6gVlxRPnz0/edit#gid=01080ti PPD/W king
970 still PPD/$ king
Newegg pricing differs a LOT - lowest 1070 (not counting refurbs) is still consistantly $379 (GigaByte ITX and 2 or 3 others on sale at any given point), while 1080s can be had for as low as $479 for non-refurbs.
The 1070 would still be very competative at the NVidia list pricing (oh yeah, 3'd party 1080ti WHEN YOU CAN FIND ONE is commanding a major price premium in the $850+ range on NewEgg) but at pricing on 3'd party non-Founder cards it's lagging too much to still be the sweet spot.
IMO NVidia should have dropped the list on the 1070 by $50 or so when they dropped the 1080 by $100, but I guess they're selling as many 1070s as they can make or very close so they don't feel the NEED to be price competative on it (keep in mind that nothing AMD can touch the 1070 OR 1080 for most usage outside of Cryptocoins, except the discontinued FuryX/Nano on a FEW games).
1080 appears to be the PPD/watt king, 4.7+ vs 4.4 for the 1080 ti and 4.0 for the 1070 - though the 1808ti and Titan X Pascal are no doubt the only contenders for the pure PPD crown.
1080 and 1070 are almost identical on PPD/$ now at Newegg pricing (1070 still wins at NVidia list pricing), but I think the 1080 might now win by a VERY narrow margin when you factor in total system cost. Add in the higher efficiency and the 1080 is almost definitively the sweet spot now AT REAL WORLD PRICING (keep in mind that the NVIdia store only sells Founder Editions, which are generally the LOWEST performing and hottest running version of each model).
Good thing I still have my Seasonic x1250 and EVGA 1300 golds around - looks like my next few builds will need them, no way a 3 card build of 1080s is gonna be comfortable on an 850.
It's too bad EVGA already has their "Bucks" promotion. Might be interesting if the CURE devs could work a deal to replace "bucks" with CURE.
Perhaps someone should talk to Gigabyte or MSI about a CURE-based competing program.
I don't see ANY major hardware reseller wanting anything to do with FLDC as long as they continue to insist on using that garbage Counterparty junk.