I've read that it will be on par with the PS4 at least. the Terga X1 has been out for a while and people are rationally speculatin' that the NX will use the X2.
The Wii U wasn't too powerful but look at Super Mario 3D World and the Breath of the Wild demos. Same with the Wii and Super Mario Galaxy 2. Nintendo seem to be able to push their systems to the limit, plus with the system bein' cartridge based, they should be able to make some graphically amazin' games.
I was a bit sceptical about the NX but the more I read, the more excited for it I get. From a business perspective, the handheld ting is a dope move to coz it should be able to play smartphone games, includin' Pokemon Go. Then it should also be powerful enough for core gamers. Plus the AAA niggas have reacted positively to it.
Lookin' forward to the unveil