[grishka]

I've always had the impression that modern internet-connected (and I mean the public internet with TLS and all that, not just LAN) embedded devices use fairly beefy, and at least 32-bit, CPUs just for that reason. But the bits don't make as much difference as the clock speed, and that can go much higher in modern days thanks to the smaller node size.

[Shawnj2]

In 2023 yes but there are lot of in production systems designed in the past around older chip designs and old hardware in the real world with slower chips. For example a common low processing power network device you can still make easily today is an Arduino Uno with a network hat.

[nick__m]

the network "hat" use to be a full blown ESP8266, an mcu that is a lot more powerful than the arduino Uno !

[grishka]

Are you sure an Arduino has enough resources to establish a TLS 1.3 connection?

[kjs3]

There are "100 MIPS" 8051 variants (for some value of MIPS) like the Silicon Labs C8051F360. Not sure that's fast enough for 'modern web', but probably fast enough for a lot of interesting things.