BNB Chain deployed the BEP-675 upgrade on its BSC Testnet on August 7, pushing throughput from 1,237 transactions per second to 2,324 TPS. That’s an 88% jump, achieved without changing the block interval or gas limit.
How BEP-675 actually works
Before this upgrade, the BSC block-building process had a significant redundancy problem. Block builders would assemble and execute transactions, then validators would re-execute those same transactions to verify them.
BEP-675 introduces a new mechanism called SendBidBlock, which allows block builders to submit fully executed blocks directly. Validators can then skip the redundant re-execution step, trusting the pre-executed results while maintaining the chain’s security model.
The performance gains from removing that redundancy are dramatic. Critical path validator execution time dropped from approximately 125ms to just 15ms. To put that in perspective, the execution step that previously consumed more than a quarter of each 450ms block interval now takes up roughly 3% of it.
