Despite Binance forking the Geth client to create BSC, it made major changes to improve it and offered something different from what was already available. One of the differences involves using the PoSA consensus mechanism instead of Proof of Work (PoW) which contributes to the faster network speed and cheaper transaction costs. BSC is also more centralized than Ethereum, thanks to its PoSA consensus model. Finally, BSC uses BNB as a native token while Ethereum uses ETH.