I know it’s not going to mine much but I’m trying to get sense of what hash rate I could get with a current gen Celeron or Pentium

I’m thinking of building a low watt small pc to leave on 24/7. Is it even worth it or should I just get an i3 or i5 machine. Someone did suggest a Ryzen Right now I’m using Raspberry Pi4 and they are doing about 100-120hs @ 3-4 watts of power.