5 4570 works well on a Minecraft server
5 4570 works well on a Minecraft server
You're looking to build a vanilla Minecraft server for your Twitch audience without any mods. An i5 4570 should handle it, especially with 8GB RAM. It should comfortably support around 8 players at most, and likely 4 at a time. This setup should meet your needs without causing performance issues.
The i5 will suffice, 8GB of RAM covers fewer than 20 users; go beyond that and you’ll need more. Also, 1.18 consumes additional memory, so consider that when planning.
Verify the baseline, according to what I understand, two cores are sufficient for handling up to ten players simultaneously. Server setups typically don’t require powerful hardware since they mainly manage data rather than graphics.