Bitcoin vs Ethereum vs Solana: How the Big Three Actually Differ
Researched and drafted with AI assistance from published sources; edited and published by NorwegianSpark SA.
Last updated: October 2026 · 7 min read
This article is for informational purposes only and does not constitute financial advice. Always consult a qualified financial adviser before making investment decisions.
Bitcoin, Ethereum and Solana are not three versions of the same thing. Bitcoin is a proof-of-work network built to be scarce money, with issuance ending at 21 million coins. Ethereum is a proof-of-stake platform for smart contracts — the place most DeFi and tokens live — and it scales mainly through layer-2 networks. Solana is a proof-of-stake chain built to do as many cheap transactions as possible on a single layer, at the cost of heavier hardware for the people who run it. None of them is simply "better"; the right comparison is which job each one is designed for, and what it gives up to do that job.
Bitcoin: digital scarcity
Bitcoin was designed to be one thing extremely well — a fixed-supply, decentralised store of value. Its supply rule is published on bitcoin.org: the number of new bitcoins created is halved over time until issuance stops with a total of 21 million in existence. New blocks are secured by proof of work (mining). Its deliberately conservative design makes it slow to change but hard to disrupt, and investors often treat it as the "reserve asset" of the space. For the fundamentals, start with our Bitcoin basics guide.
Ethereum: programmable money
Ethereum introduced smart contracts, turning a blockchain into a platform other applications run on — DeFi, NFTs and most of the experimentation in crypto live here (explained in Ethereum and smart contracts). It moved from proof of work to proof of stake in the Merge on 15 September 2022, which ethereum.org says cut the network's energy use by about 99.95%. Its supply works differently from Bitcoin's: new ETH is issued to validators, while the base fee of every transaction is burned, so net supply rises or falls with how busy the network is. Base-layer transactions have historically been more expensive, and much of the activity has moved to layer-2 networks.
Solana: speed and throughput
Solana prioritises high transaction speed and low fees in one layer, which makes it attractive for high-frequency applications. Its consensus is proof of stake (a design Solana calls Tower BFT) with Proof of History acting as a network clock that orders transactions before validators vote. Solana's own documentation sets the base fee at 5,000 lamports per signature, half burned and half paid to the validator, with optional priority fees on top. The trade-off has been higher hardware requirements for node operators and a different set of decentralisation and reliability questions compared with older networks.
Bitcoin vs Ethereum vs Solana at a glance
| Bitcoin | Ethereum | Solana | |
|---|---|---|---|
| Designed to be | A fixed-supply, decentralised store of value | A platform other applications run on | A high-speed, low-fee settlement layer |
| Consensus | Proof of work (mining) | Proof of stake since 15 Sep 2022 | Proof of stake (Tower BFT) with Proof of History as a clock |
| Supply and fees | Issuance ends at 21 million BTC | Issued to validators; base fees burned, so net supply varies | Base fee of 5,000 lamports per signature, half burned, half to the validator |
| Scaling approach | Conservative base layer | Layer-2 networks on top of a secure base layer | Throughput on a single layer |
| Strength | Capped supply; conservative design is hard to disrupt | Smart contracts — DeFi, NFTs and most experimentation live here | High transaction speed and low fees |
| Trade-off | Slow to change; limited programmability | More complexity and historically higher base-layer costs | Heavier node hardware; different decentralisation and reliability questions |
What this means for you
These aren't just "coins" — they're competing bets on different futures: hard money, a global computer, or a high-speed settlement layer. Diversifying across them is not the same as diversifying risk, because they're all still crypto and tend to move together.
Frequently asked questions
Which is better: Bitcoin, Ethereum or Solana?
None is better in general; each is optimised for a different job. Bitcoin prioritises scarcity and a conservative design, Ethereum prioritises programmability with scaling through layer 2, and Solana prioritises throughput and low fees on one layer. Which fits depends on what you want to do, and all three are volatile.
Does Ethereum have a supply cap like Bitcoin?
Not in the same way. Bitcoin's issuance stops at 21 million coins. Ethereum issues new ETH to validators and burns the base fee of every transaction, so its net supply goes up or down with network activity rather than following a fixed end point.
Is Solana proof of stake?
Yes. Solana uses a proof-of-stake consensus called Tower BFT. Proof of History is not a consensus mechanism on its own; it acts as a clock that orders transactions so validators can agree faster.
Is holding all three a diversified portfolio?
No. They are correlated assets in the same sector, so splitting money across them still leaves you fully exposed to crypto. Size the whole crypto position relative to everything else you own first — see crypto portfolio construction.
The Trade-Off Every Chain Is Making
Comparisons in this space read as feature lists when they are actually a single
engineering trade-off expressed differently. Every design chooses a position between
decentralisation, security and throughput, and gains in one are usually paid for in
another.
| Emphasis | The cost of that choice | |
|---|---|---|
| Bitcoin | Conservatism, verifiability, credible scarcity | Deliberately limited programmability and throughput |
| Ethereum | Programmability, security of settlement | Base-layer cost and speed; complexity moves to layer 2 |
| Solana | Throughput and low cost in one layer | Higher hardware requirements to run a node |
None of those is a defect. They are different answers to the same question, and which
one is right depends entirely on what the chain is for.
What to Look At Instead of the Marketing
chain independently, which is what decentralisation actually means in practice.
say more than uptime marketing.
incentive campaign?
Holding Them Is Not Diversification
These are correlated assets in the same sector, and treating a split across three as a
diversified position is the common error — the point made in
crypto portfolio construction. Holding the
layer 2 tokens of a chain you already hold compounds the same exposure again.
Real diversification here comes from outside the sector. Inside it, the useful question
is not how many you hold but how large the whole position is relative to everything else
you own.
Practical Differences You Will Actually Feel
mistake.
concentrate, and being on the wrong chain means bridging — with all the risk described
in the Ethereum layer 2 guide.
decision rather than a yield decision — see
Capital at risk. This is general information, not financial advice.
The bottom line
Crypto is highly volatile and none of these is a guaranteed winner; allocation should reflect risk you can stomach. To see which networks are actually being used rather than talked about, read our guide to on-chain analysis. If you're building exposure across all three, Coinbase lists spot markets for BTC, ETH and SOL — and our guide to choosing a crypto exchange covers what to check before you fund any platform.
Beyond these three, most coins are far smaller and riskier; our altcoin investing strategy sets out the supply and position-sizing checks to run before buying one. On Ethereum, what each transaction costs is explained in gas fees explained: base fee vs priority fee, and moving assets between chains carries risks of its own, covered in what you trust when you use a crypto bridge.
Capital at risk. This is not financial advice.
Related reading: How Bitcoin Was Actually Born: A Mailing List, a Newspaper Headline and Nine Pages
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