Is PoS better than PoW?

Proof of work (PoW) is a decentralized consensus mechanism that requires members of a network to expend effort solving an arbitrary mathematical puzzle to prevent anybody from gaming the system . Proof of work is used widely in cryptocurrency mining, for validating transactions and mining new tokens.

Bitcoin : Bitcoin is the first and most popular PoW cryptocurrency. It is the coin that introduces the concept of Proof-of-Work into the world of cryptocurrency. Ethereum: Ethereum has been working based on PoW consensus since it was first created.

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Proof-of-Stake is the so-called better way of solving cryptographic problems. Following are a few cryptocurrencies that use the PoS model that is faster and more secure than PoW .