These are the 3DS latest figures per Nintendo
https://www.nintendo.co.jp/ir/en/finance/hard_soft/
Hardware:66.12miilion units ( As of March 31, 2017 )
PSP final figures are harder to find but Wikipedia has the following
Worldwide: 82 million, rounded-up (as of November 2013)[1][2][3]
Vgchartz has the PSP final figures at 80.82 million for reference.
Nintendo foreceast that they will sell 6 million additional 3DS by march 2018. If they manage to do so the 3DS sales will stand at rougly 72m. From there on they will need to sell 8 million (or so) more units to pass the PSP.
Personally I think it will be very close and will heavily depends on how long they keep supporting the 3DS after 2017 but they will manage at the end (just barely).
Thoughts?







