Vitalik Buterin, one of Ethereum creators, has stated that Plasma and Sharding technologies will enable the network to process over one million transactions per second. In the course of the interview, conducted during OmiseGo AMA session, Buterin emphasized the role of second-layer solutions in solving the scalability issues. He went on to state that Sharding and Plasma solutions are complimentary, which means their scalability gain parameters multiply with each other.
“If you have a Sharding solution, the Sharding solution itself might increase the scalability of Ethereum by a factor of 100, or eventually even more. But then, if you do Plasma on top of the scalability solution, then what that means is, you’re not just doing 100 times of the amount of activity but you are doing 100 times the amount of entrances, the amount of exits, and despite resolutions.”
“So if you get a 100x from Sharding and a 100x from Plasma, those two basically give you a 10,000x scalability gain, which basically means blockchains will be powerful enough to handle most applications most people are trying to do with them”.
The aim of Plasma is to implement “micropayments” through child blockchains, while Sharding divides a blockchain network to sections – or ‘shards’, which eliminates the need of processing all new data on a blockchain.