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If you want to push energy efficiency the Raspberry 2 (old ARM v7 version) is the best device at 1W idle / 2W full load, it saturates the SD card. One step up i
by bullen 4y ago
If you want to push energy efficiency the Raspberry 2 (old ARM v7 version) is the best device at 1W idle / 2W full load, it saturates the SD card. One step up is Raspberry 4 for heavier workloads/networking at 3W idle / 6W full load, and after that 8-core Atom at 15W idle / 25W full load.
As mentioned elsewhere in this thread, 100Mb/s, vs 1Gb/s vs 10Gb/s makes a lot of difference. IMO 1Gb/s is the only reasonable speed for home hosting as to saturate 10Gb/s you would need at least 20x (50Ah) lead-acid batteries of backup and that is almost industrial levels of investment/maintenance.
The final constraint is that disks and RAM uses more energy than you would think, 256GB DDR5 uses 80W! And they wear faster than you would think too at these nm! Be careful with writes!
So you need to plan your structure with the proper redundancy without going to far above the previously mentioned 1Gb/s saturation for your particular applications.
- ciupicri 4y ago> 256GB DDR5 uses 80W! WTF?!
- CyberDildonics 4y agoIf it sounds unbelievable, that's because it isn't remotely true. DDR5 is 13% more efficient than DDR4 and has 4 times the max die density. 256GB broken up into four 64GB sticks would use about 8 watts. This person make insane claims about power all the time. They claim nothing will surpass old raspberry pis and intel atoms in efficiency, that nothing will surpass 1 gb networking due to power constraints (even though it all has existed for well over a decade) and even claim that certain video games won't be playable in the future from power constraints. It is best not to think about it too hard.
- bullen 4y ago64GB DIMM are probably brittle. The 256GB I mentioned was industrial server memories built to last.
- CyberDildonics 4y agoNone of what you are saying makes sense. Why do you think any of this is true?