Binance Smart Chain vs. Ethereum: What's the Difference? | Binance Academy
Binance Smart Chain (BSC) is a hard fork of the Go Ethereum (Geth) protocol, and as such, shares many similarities with the Ethereum blockchain. However, BSC developers have made significant changes in some key areas. The largest change is BSC's consensus mechanism, which allows for cheaper and faster transactions.
https://academy.binance.com/en/articles/binance-smart-chain-vs-ethereum-what-s-the-difference