Throughput describes how much activity a blockchain can process within a given period. For Solana, it is often expressed as transactions per second (TPS). However, network capacity depends on several factors, including slot time, compute limits, transaction size and validator infrastructure.

Solana can process thousands of transactions per second, but headline TPS figures require context. Network statistics may include validator-related activity alongside user transactions, meaning displayed TPS should not automatically be interpreted as thousands of individual payments every second.

Application throughput, observed network TPS and theoretical maximum capacity are different measurements. A decentralized exchange transaction can also consume substantially more computational resources than a simple token transfer, making raw transaction counts an incomplete measure of performance.

Solana measures transaction workloads using compute units, or CUs. In July 2026, Mainnet activated SIMD-0286, increasing the maximum block compute limit from 60 million to 100 million CUs, a 66% increase.

The Solana Foundation reported that 11.2% of blocks produced between the previous 60-million-CU activation and the latest increase consumed at least 56 million CUs. This indicated that periods of heavy demand were already pushing blocks close to the previous ceiling.

The upgrade gives applications more execution headroom without requiring developers to redesign existing transactions.

Solana has also expanded how much data individual transactions can contain. On September 15, the txv1 feature activated on Mainnet, increasing maximum transaction size from 1,232 bytes to 4,096 bytes, approximately 3.3 times larger. Existing legacy and v0 transaction formats remain supported.

The larger envelope can accommodate zero-knowledge proofs, large multisignature transactions, advanced cryptographic signatures and more complex trading routes.

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