On Wed, 4 Dec 2019 04:37:35 +0000 (UTC), bob prohaska 
declaimed the following:

>A Pi4's extra RAM and faster I/O are attractive in principle, but I'd
>like to know if they help in practice, especially if Buster is a 64 bit
>system with all its added overhead.
>

 The Buster-based Raspbian is still a 32-bit build... The foundation
insists that one downloadable image be usable on all generations of R-Pi.

 On architecture difference is that the R-Pi 4B cores were "performance"
cores, while the R-Pi 3B/3B+ cores are "efficiency" architecture
https://processordigest.blogspot.com/2018/06/a53-vs-a72-processor.html


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