Biggest leap forward from a system to its successor

[Shtinamin_]

I want to have a couple of categories to see the biggest leap forward between system to successor. And I just want to focus on the these gaming companies: Nintendo, Sega, Sony, Microsoft, Meta (as they have survived and/or surviving past the year 2000).

Hardware: PS1 to PS2. 16x times more RAM, 8.94x faster CPU Speed, 3x times more GPU clock speed.

Software graphics: 2D texture to 3D polygons. Which involves the SNES to N64 and the Genesis to Saturn.

Software support: WiiU to Switch.
WiiU had 103.6M games sold, and the Switch has, as of Dec 31, 2023, sold 1133.23M games. An increase of 10.94x times, higher than any other system-to-successor.

Controller: Sega Master to Sega Genesis.
The Master had only 6 buttons (Up, Down, Left, Right, 1, 2) and the Genesis has 12 buttons (Up, Down, Left, Right, A, B, C, X, Y, Z, Mode, Start). Yes the 6-button layout was added later into the console's life, but it became the de-facto controller.

Hardware sales: WiiU to Switch.
As of Dec 31, 2023 the Switch reached 136.26M and will continue to sell many more millions. It's predecessor, the WiiU, sold 13.56M. The Switch has sold 10.05x times more than its predecessor, higher than any other system-to-successor. 

Entertainment: Color TV Game Series to NES.
The NES, and Super Mario Bros, single-handedly saved the video game industry from extinction and proved to the world that video games can be entertaining.

Nintendo: WiiU to Switch

Sega: Master to Genesis

Sony: PS1 to PS2

Microsoft: Xbox to Xbox 360

Meta: Oculus Rift to Oculus Go

Overall: I think that Nintendo made the best leap forward from the WiiU to the Switch. The company felt the most "depressing" during the WiiU era and with the Switch era it has been given new life. I gotta give it to WiiU to Switch.