I’m looking at some old Intel and Pentium CPUs that are in a NUC. Are cores and max clock speed the only things that matter? Would a Pentium be good enough to run Immich? I have a i7-4790, and the NUCs I’m looking at range from a Pentium J5005 to a i3-1115G4. I do run Docker, does that affect anything?
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CPUbenchmark.net is the best way to compare 2 CPUs.
Directly comparing cores and speed is only useful across the same architecture, comparing brands and different generations should only be done via benchmarks.
I can’t provide any feedback about if those CPUs are enough for immich as I do not use it.
This is my go-to for a first look. You might want to see if the CPUs also support special features like encoding/decoding acceleration, because doing stuff like that in hardware is much, much faster than doing it in software with regular instruction pipelines.
+1, this is my first stop too
Don’t forget to compare a consumption too, or perhaps “performance per watt” metric. If plan to run this CPU in a server, this makes a difference in the electricity bill - especially for always on server.
Docker doesn’t make a difference. Containers run natively and with no emulation.
Buy a used tiny/mini/micro from eBay. Best bang for buck and good efficiency. I got a Dell with a 9500T for $110.
This the route I went too, a couple years ago I found a tiny form factor Lenovo with a 6500t on eBay for a little under 70 bucks shipped and then I found a tiny Dell with a 9500t on my local Craigslist for 100 bucks.
They’re good little boxes.
In terms of raw CPU power, you will rarely have issues with anything newer than 10 years old. But some built in video conversion hardware can differ significantly and power consumption is usually also lower for newer CPUs.
I don’t encourage people to buy anything older than ~2016 or Skylake era. Older chips tend to eat enough power that they’re more expensive over time (usually less than a year after purchase) than newer more power efficient parts. Run the math on power consumption with the chip’s TDP for a year as an estimate and you’ll often be surprised by just how expensive chips from <2016 end up being to run. Cpubenchmark.net will do that for you if you use the comparator, just remember to set your average kWh cost.
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