Then again, this is just a rumor, might not be true.
Remember the Foxconn leak? It was quickly discredited mainly because the 1080p screen and the pro version (which he later said was a dev kit). BUT, not only did he provide an accurate description of the dev kit pics that were leaked a day before the Switch trailer was out (and it ended up looking strikingly similar to the Switch), with the patents he got even more stuff right.
For example, he predicted the buttons on the side of the joy-cons (calling them SL & SR), the fact there is no fan in the dock (even though LKD said otherwise, though the patents aren't 100% accurate), a 4G version (mobile networking functions were mentioned in the patent) which is definetly a detail not easily predictable.
Not to mention he stated that the Joy Cons have complicated innards, which fits with the fact that they have that infrared camera for reading vein patterns and similar stuff packed in there.
So going by this, he says the screen is 1080p (though it might not be accurate as he said he thinks it is from seeing it), the processor is much more powerful than the X1 (which counters this) and the battery is 4130mah.
Now going by logic LKD actually backed this rumor stating it matches the info she was given (probably piggybacking) but if it actually does it implies they have similar sources which have been wrong in the past (fan in Switch dock and maybe something else).
Then you also have the fact that using Maxwell doesn't make that much sense and Nvidia states the newest and best tech used in their lastest GPUs, so unless heavy false-ish clickbait advertising (which it probably is) it can't be Maxwell.
But I will say myself that this is strawgraspy and I don't really buy it myself (would love to be wrong here), as Eurogamer has been legit in the past, but a man can dream...
