Ask someone who uses Solana why they like it, and the answer is almost always some version of: it's fast, and it's cheap. Where an Ethereum transaction during a busy period might take minutes to confirm and cost several dollars in gas fees, a Solana transaction typically confirms in under a second for a fraction of a cent. Launched in 2020, Solana was built from the ground up around that specific trade-off, rather than being an incremental upgrade to an existing design.
How Solana gets its speed
Most of Solana's speed comes from a mechanism called proof of history, layered alongside a proof-of-stake system similar in spirit to Ethereum's. Proof of history works like a built-in timestamp: it lets the network agree on the order events happened in without every validator needing to communicate back and forth to confirm that order first. That removes a major bottleneck other blockchains deal with, letting Solana process a very high volume of transactions per second under normal conditions.
The network also uses parallel transaction processing, meaning it can execute multiple non-conflicting transactions at the same time rather than strictly one after another. Combined, these design choices are what let Solana advertise transaction costs and confirmation times that are dramatically lower than Bitcoin's or Ethereum's.
What that speed is used for
Solana's low fees and fast confirmation have made it a popular base for applications where transaction volume is high and margins are thin — decentralized exchanges, NFT marketplaces, and payment-style applications in particular. It's also become a common platform for launching new tokens quickly, for better and for worse; that ease of creation is part of why Solana is closely associated with speculative token activity, alongside its more established DeFi and NFT projects.
The trade-offs behind the speed
Speed isn't free. Solana has experienced multiple network outages since its 2020 launch, periods where the network stopped processing transactions entirely, often tied to unusually high demand overwhelming its infrastructure. Its team has released upgrades addressing specific causes over time, but the history is part of Solana's record and worth knowing about.
Solana also runs on a comparatively smaller number of validator nodes than Bitcoin or Ethereum, and running a validator requires relatively capable hardware. Supporters argue this is a reasonable trade for performance; critics argue it concentrates influence over the network more than a maximally decentralized design would. Both observations are about the same underlying fact — it's a genuine trade-off, not a solved problem.
What to weigh before getting involved
If low fees and fast confirmation matter most for what you want to do, Solana is a reasonable network to understand. If your priority is the maximum level of decentralization and the longest security track record, Bitcoin and Ethereum have longer histories under real-world stress. Neither answer is universally correct — it depends on what you're actually trying to do, and it's worth researching Solana's more recent uptime record directly before assuming past outages are fully behind it.
Key takeaways
- Solana is built around fast, low-cost transactions using proof of history alongside proof of stake.
- It supports high transaction volume through parallel processing of non-conflicting transactions.
- It has experienced multiple network outages since launch, tied to periods of unusually high demand.
- It runs on fewer validator nodes than Bitcoin or Ethereum, a deliberate speed-for-decentralization trade-off.
- Whether that trade-off is worth it depends on what you actually need from the network.
- Is Solana still prone to outages?
- Solana's team has shipped multiple upgrades aimed at the causes of past outages, and reliability has generally improved over time. Because this changes as the network evolves, check Solana's own status history for the most current record before relying on it for anything critical.
- What is SOL used for?
- SOL is Solana's native token, used to pay transaction fees on the network and, for validators, staked as part of securing it.
- Is Solana a competitor to Ethereum?
- They're often compared because both support smart contracts and a broad ecosystem of applications, but they make different trade-offs to get there, and many projects operate on both.