Potential Eth. transaction rate w/ Istanbul upgrade.[url=https://https://all-stocks.net/ethereum-completes-istanbul-hard-fork-aiming-for-3k-transactions-per-second/]Hard Fork improvements[/url]
Visa processes approx. 1,400 transactions per sec.
Additonal info.
[url=https://https://consensys.net/blog/news/everything-you-need-to-know-about-the-istanbul-hard-fork/][/url]