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Revised Raspberry Pi 5 chip comes with unexpected power savings
(arstechnica.com)
This is a most excellent place for technology news and articles.
For 70€ you can buy an N4000 mini PC with 6Gb of RAM, and 128Gb eMMC. This is just an example from AliExpress. I am not going to post a link here, but I believe you can find even more offers. Additionally, you can buy some thin clients second hand for dirt cheap.
With the right power supply and BIOS optimisation you can bring their power consumption to be comparable to the power consumption of the Pi, and would be a lot more versatile and powerful as a home/media/automation setup.