Two days ago The Wall Street Journal reported that Nintendo is sending out development kits for the upcoming NX platform. The report states that the NX will use industry-leading chips, but no further specifics were given, leaving the meaning somewhat ambiguous. NintenGen followed up on the report by emailing the writer of the report, journalist Takashi Mochizuki, to ask for clarification.
Mochizuki clarified both in the email and in a later Twitter post that he doesn't know if the hardware in the NX dev kits are more powerful than PlayStation 4 or Xbox One, and he hasn't personally seen the dev kits running, nor has he seen their specs. However, he has spoken with people who have seen it demoed, and they described what they saw as cutting-edge.
"-Several people who said who have seen a demo said what they saw is impossible to run on a computer without a “industry-leading” or “cutting-edge” chips. Cutting-edge in what way, they refused to elaborate.
"-And an important thing to remember, probably you know well already, is that chip specs won’t be finalized until much closer date to the release." — Takashi Mochizuki
Unfortunately, this still doesn't give us anything specific to work with, but it does let us know that there's apparently a pretty impressive-looking demo for NX out there somewhere. With dev kits now out in the wild, it's likely that details will begin trickling out soon.