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Gas and Priority Fees: Solana vs. EVM for Complete Beginners

Understand how transaction fees work on Solana and EVM chains without the jargon.

· 5 min read · Blackhat Empire

What Are Gas Fees Anyway?

Every transaction on a blockchain requires computational work. Miners or validators need to be paid for that work. That payment is called a gas fee. On Ethereum and EVM chains, you pay for each unit of computational effort. On Solana, you pay a flat base fee plus an optional priority fee to skip the line.

No matter which chain you use, you are bidding for block space. The more congestion, the higher the fee. Beginners often get burned because they don’t understand how these fees work, especially when memecoin launches create sudden spikes.

EVM Gas: Bidding for Space

On Ethereum, BNB Smart Chain, Arbitrum, or any EVM chain, gas works like this:

  • Gas limit — the maximum amount of computational work your transaction can use.
  • Gas price — how much you’re willing to pay per unit of gas (in gwei).
  • Total fee = gas limit × gas price.

A simple ETH transfer costs 21,000 gas. A complex swap on Uniswap might cost 150,000 or more. If you set your gas price too low, your transaction sits in the mempool until the network clears. If you set it too high, you overpay.

EVM chains typically use a priority fee (tip) to incentivize validators. The base fee is burned. The priority fee goes to the validator. When memecoin mania hits, the priority fee spikes because everyone is racing to get in front.

Key point: On EVM, you can adjust both the gas limit and the gas price. Most wallets auto-calculate a safe limit. Beginners should leave the gas limit at default and only adjust the priority fee if transactions are stuck.

Solana: Flat Fee + Optional Priority

Solana works differently. The base fee is fixed at 0.000005 SOL per signature (roughly 5000 lamports). Most transactions use one signature, so the base fee is tiny. But when the network is busy, validators prioritize transactions that include a priority fee.

On Solana, the priority fee is added per compute unit (CU). A simple transfer uses 450 CU. A complex swap on Raydium might use 200,000 CU. You can set a priority fee in SOL per compute unit, or use a wallet like Phantom that auto-calculates based on current congestion.

Key difference: Solana does not have a global mempool like EVM. Transactions go directly to the leader. If you don’t include a priority fee during congestion, your transaction may never land—or land after the memecoin has already pumped and dumped.

Real-World Example: Memecoin Launch

Imagine a new memecoin launches on Ethereum. Everyone rushes to buy. Gas price spikes from 20 gwei to 500 gwei. A beginner sets gas to 20 gwei and wonders why the transaction never confirms. By the time they increase the fee, the price has already moved 50%. They buy the top and get wrecked.

On Solana, the same scenario plays out differently. The base fee stays 0.000005 SOL, but the priority fee spikes. A beginner who doesn’t add a priority fee might see their transaction stuck for minutes. When it finally lands, the liquidity is gone.

The lesson: On both chains, you must understand current network conditions before hitting send. On EVM, check the current gas price on GMGN. On Solana, check the priority fee estimate. Never blindly accept defaults during high congestion.

Which Chain Is Cheaper?

For simple transfers, Solana is almost always cheaper. A Solana transfer costs a fraction of a cent. An Ethereum transfer during low traffic costs $1–$3. During peak memecoin hours, Ethereum can cost $50+ for a swap.

For complex interactions like memecoin buys, Solana remains cheaper but the priority fee can add up. EVM fees are higher in absolute terms, but the mempool mechanics are more transparent.

The trap: Beginners see Solana’s low base fee and assume all transactions are cheap. They don’t account for priority fees during congestion. They lose money on failed transactions or missed entries.

Practical Tips for Beginners

  • On EVM: Use a wallet that shows the current gas price. Set a priority fee that matches or slightly exceeds the network average. Don’t use the “low” preset during memecoin launches.
  • On Solana: Always include a priority fee when speed matters. Use the wallet’s auto-estimate or add 0.0001 SOL per compute unit as a starting point.
  • Check current conditions on GMGN before any trade. GMGN shows live fee estimates for both chains.
  • Never panic-increase your fee during a launch. Pre-set your fee before the transaction and stick to it. Chasing fees leads to overpaying.
  • Understand compute units. On Solana, more complex transactions require more CU. A simple buy uses less CU than a swap with multiple hops.

The Bottom Line

Gas and priority fees are the price of access. They protect the network from spam and ensure validators are paid. Beginners who ignore them get burned. Learn how each chain works, check current conditions on GMGN, and never assume defaults are safe.

Memecoins are extremely high risk and most go to zero. Understanding fees won’t save you from a bad trade, but it will stop you from losing money to preventable technical mistakes.

Stay sharp. Stay educated.

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