Hashgraph uses Superior distributed ledger technology. Hashgraph is more vigorous system. It uses asunchronous BFT based consensus mechanism. It is a decentralized platform without servers built on Hashgraph technology. It uses two special techniques to achieve fast, fair and secure consensus. Gossip about Gossip Virtual Voting The gossip protocol shares new information that other nodes don’t know, and the gossip about gossip includes where that new information originated. When the new messages include the hash of previous messages into one, then you have the entire history of who talked to who in the network and in what order.
Tendermint: It is Byzantine Fault Tolerant, meaning it can only tolerate up to a 1/3 of failures, but those failures can include arbitrary behaviour – including hacking and malicious attacks. Itakes a state transition machine, written in any programming language, and securely replicates it on many machines.