If I have some machine with particular specs in mind (processor/memory/bandwidth), how can I estimate how quickly that node can download and verify transactions? In a quick search I wasn't able to find any numbers for verification speeds run on different machines, so that would be helpful too.
I have seen this question, but my question is more focused.
I found one bit of data about this: a lower bound of verification of last year's blockchain in about 20 days (projected, not tested). This amounts to about 170 transactions per second of verification.
More: * [https://twitter.com/erickuhn19/status/1095553655086804993](Eric Kuhn) saying transaction verification is the main bottleneck.