IIRC - the licensing agreement only prohibits products including AMD IP that would directly compete in markets that AMD is currently in. That basically opens up the mobile/portable gaming market avenue for Samsung using AMD GPU IP.
Yes. Samsung can do whatever SoCs they want with RDNA GPUs as long as it's lower than 15W.
Which fits rather nicely with
AMD declaring they'd stay out of the ultra-mobile business, but still finding a way to put their GPU architecture into handhelds.
A 2x jump is only in line with the jump from the GC to the Wii really.
IIRC the Wii is exactly a Gamecube with 50% higher clocks and an external 64MB single-channel GDDR3 chip for low-priority stuff like audio, home screen, social stuff, user interface and texture buffering.
Unless the gamecube was severely bottlenecked by memory amount, I doubt the Wii ever reached 2x its performance.
But to be fair, in the handheld space Nintendo has had mid-gen upgrades for quite some time.
The DSi had a 2x faster CPU and 4x more RAM than the DS, and the New 3DS had twice the amount of ARM11 cores clocked 3x higher (6x more
powerful CPU!) and twice the FCRAM at twice the bandwidth (they didn't touch the DMP GPU though).
So if Mariko lets the A57 cores clock at ~2GHz without burning too much power, I think Nintendo might release a
New Switch with that enabled, as it speeds up UX and other QoL enhancements.