a16z says blockchain speed is no longer enough for onchain markets

According to a blog by venture capital company a16z crypto published in September 3, it is becoming less important to regard raw transaction speed as a criteria for determining the viability of a blockchain for heavy trading. The more relevant considerations involve whether transactions arrive on time and in a predictable order.
In the case of banks, asset issuers and market makers transitioning into the on-chain sector, the difference becomes important. Even if a network can carry out thousands of transactions per second, it wouldnโt be a great choice for trading if a particular player causes a delay or reshuffle of the transactions.
Why throughput stopped being the differentiator
There has been a significant improvement in blockchain capabilities. In its 2025 State of Crypto report, a16z reported that combined throughput across the major networks has increased by more than 100 times over the past five years, going from less than 25 transactions per second to over 3,400 transactions per second. Its September blog post stated that certain production systems were able to process tens of thousands of transactions per second.
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