It'd be useful to know what exactly having a superior any of these helps with the node:

  • CPU
  • RAM
  • disk speed
  • download speed
  • upload speed
  • others?

For example, apparently network speed helps supports more validators

I'm trying to determine, for various use cases, what the appropriate node hardware & network configurations would be. Then I can figure what lowest specs I can get away with, as running execution & consensus clients on the min requirements compared to recommended specs would have effects, but I don't know what exactly.

1 Answer 1


According to the docs on ethereum.org, the recommended specifications for running a node is :

  • Fast CPU with 4+ cores
  • 16 GB+ RAM
  • Fast SSD with 1+TB
  • 25+ MBit/s bandwidth

From the above, it's implied that CPU speed has highest priority in improving the running of a node, followed by RAM, then SSD, and finally bandwidth.

See: https://ethereum.org/en/developers/docs/nodes-and-clients/run-a-node/

  • But what exactly does a better CPU/etc help the node do? (i.e. what would the difference of output be between a low CPU node and high CPU node?) Commented Nov 4, 2022 at 18:24
  • A higher CPU node can process more transactions, both when they first arrive (in the memory pool) and when they are confirmed within a block in the chain, compared to those of a lower CPU node, in a given amount of time. Commented Nov 4, 2022 at 20:14

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