In Quorum, to help decide between Raft and Istanbul BFT (IBFT) consensus, which has a better (faster) block confirmation time? Assuming Ceteris Paribus.

2 Answers 2


Quorum's raft implementation is specifically designed for the speed of txn processing and confirmation, thus Raft mode is going to be much faster than IBFT.


This paper Performance Evaluation of the Quorum Blockchain Platform gives a good comparison between Raft and IBFT in term of latency and throughput.

  • This should be an accepted answer, since in conclusion they claim: "RAFT and IBFT are comparable in terms of throughput except that RAFT performs slightly better at higher input transaction rates above 1650 tx/sec and IBFT slightly over performs RAFT for lower transaction rates, quite contrary to our expectation." Mar 27, 2019 at 10:32
  • Yes, that's correct.
    – Noureddine
    Mar 31, 2019 at 6:40

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.