New $120 16GB Raspberry Pi 5 is for the people who use it like an everyday PC
The 16GB version of the Pi 5 includes the revised "d0" stepping of the Pi 5's BCM2712 processor. For the Pi's purposes, this chip is functionally identical to the original version but uses slightly less power and runs slightly cooler because it cuts out silicon used for features that the Pi 5 didn't take advantage of.