That looks even worse than your AI set. I don't understand this. The player models look lower poly. Its definitely not as clear as 2K14.
I would love to see a Digital Foundry for this game but I highly doubt it.
Unfortunately NBA is not a popular sport in the UK so they don't even review it. Even Madden gets reviewed while there is total indifference for NBA (better than have someone without any knowledge of the sport reviewing the game like so many other outlets....), so Digital Foundry is very unlikely.
Maybe if there is some loud criticism asking them for a comparison...
I didn't bought NBA 2K15 (after being fooled by NBA 2K14 VC/online only scam) so far but comparing online footage from 2K14 vs 2K15 it definitely seems like NBA 2K14 looks better.