The Bitcoin blockchain has a block limit of 1 MB. what that means is the the number of transactions that fit into a single block cannabis exceed a 1 MB. the time it takes to mine, or create, a new block on the bitcoin blockchain is about 10 minutes. this effectively means that the bitcoin network can handle 3-4 transactions per second.

The Ethereum blockchain does not have a block limit. the number of transactions that are put into a block are decided by the members. each block is mined in 12-14 seconds and the number of transactions per second are around 15.