Solana’s secret sauce seems to be programmed into its consensus mechanism, and it is called Proof-of-History (PoH). Solana also uses a protocol called Turbine, which breaks up information into smaller bits, making it easier to process. This is similar to what Ethereum will be looking at implementing through what it has called “sharding”. Meanwhile, Ethereum still relies on a Proof-of-Work system. This means computational power has to be used constantly to create new blocks, which puts a strain on the network and requires much higher energy consumption. However, as we know, Ethereum is looking to change this and switch to a PoS system through its roadmap to Ethereum 2.0. This update consists of a three-step process that might not be completed for another 2 years. Currently, ETH has implemented the Beacon chain, which introduces staking on a “separate” network. The next step would be to merge these two chains, which is expected to happen sometime in the next few months of 2021. Lastly, Ethereum will introduce the above mentioned “shard chains”, which will enable Ethereum to process more transactions.
One of the reasons Solana competitors struggle to achieve higher transaction volumes is often due to the fact that miners or validators need to communicate with each other to figure out how to order blocks. Solana has solved this with a system of cryptographic time-stamping that currently can accommodate 65000 transactions a second, which is astonishing. That’s not a typo, and it is orders of magnitude more than Ethereum’s 30 transactions per second. Nobody has come close to this, including Visa. Solana can, in theory, even carry out more transactions per second than Visa Inc., which by their own claims can carry out 24,000 transactions per second.
Therefore, the greatest appeal Solana has is its scalability, and the other is transaction fees. According to Solana’s website, the average transaction cost is around $0.00025 which is much cheaper than Ethereum. So there’s some brilliant technology behind this exceptional surge to be called as an “Ethereum Killer”.