Michael Pachter, Managing Director, Equity Research at Wedbush Securities and gets his video games hardware and software guesses and/or figures from somewhere with authority. At least you'd hope so when he makes massive statements like this one...
Mr P thinks that the PS4 has outsold Xbox One in the USA since the former was launched on November by an absolutely mind-boggling large number 'mirroring' the sales disparity we've already seen in the UK.
MCV reports that, "Michael Pachter has said in his most recent investor note that he believes PS4 sold 1.25m consoles in the region throughout the month and that Xbox One sold 750k."
The PS4 released in the US on November 15th, a week ahead of box One's November 22nd debut.