Solana co-founder Anatoly Yakovenko reignited a discussion around blockchain hardware requirements after a developer from Firedancer successfully ran a mainnet node on a tablet device. The experiment demonstrated that the node used less than a single CPU core and synchronized with Solana’s latest block in approximately 10 seconds over a 5G connection.
Tablet test sparks debate on blockchain accessibility
On November 15, Yakovenko responded to an earlier post from Bankless co-founder David Hoffman with the message, “We did it,” and the phrase “sol is money,” shortly after developers published their results of the tablet experiment. The discussion focused on the potential cultural impact of minimizing hardware requirements, as developers asserted that “minimized blockchains are unstoppable blockchains.” Without this drive for minimalism, they argued, removing barriers for node operators would remain an elusive goal.
Firedancer creator Ritchie Patel confirmed that the mainnet node was connected via 5G. According to Patel, it took roughly 10 seconds for the device to synchronize with the chain tip and begin participating as a voting validator, a key part of Solana’s consensus process. He noted the rapid sync was achieved using the “make -j” command, which allows for parallel compilation.
Minimized blockchains are unstoppable blockchains, and without instilling this value into the code, long-term prospects not great.
However, the performance report did not include long-term node operation results or specifics about behavior under heavy network load. Other engineers, including Michael McGee, showcased similar demonstrations, such as running a validator on a single CPU core with 20 GB RAM. While this confirmed efficient processor usage, the memory requirements remained substantial.
A snapshot enables a node to capture the network’s current state without replaying every historical transaction, explaining the swift boot time of these demonstrations. Importantly, the test reflected syncing from a snapshot rather than starting from the genesis block.
Validator hardware requirements draw scrutiny
Firedancer, developed by Jump Crypto, is an alternate validator client for Solana designed to improve speed and efficiency. Patel previously stated that Firedancer has managed tens of millions of mainnet transactions during phased rollouts with ongoing security reviews.
Yakovenko has compared Solana’s requirements to those of Ethereum, which currently supports around 7,000 full nodes and 400,000 validators, each with varying resource demands. Developers noted that Ethereum software could run on low-cost devices such as Raspberry Pi computers, prompting questions about Solana’s ability to support similarly modest hardware.
While Yakovenko acknowledged the importance of efficient hardware for widespread participation and decentralization, he stated that Solana had not prioritized minimal hardware usage in its design. He estimated that a computer with 16 GB RAM and a solid-state drive could adequately handle block validation and receipt.
If individual users cannot run decentralized software due to hardware costs, the network’s sustainability is compromised, Hoffman emphasized, highlighting the critical role of minimized requirements.
Despite success with tablets and low CPU usage, developers cautioned that minimal processor requirements alone do not reflect the full operational expenses of running a mainnet validator, especially during periods of high activity. For production environments, Anza—a Solana infrastructure and engineering firm—recommends at least 12 CPU cores and 256 GB RAM, along with fast storage and symmetrical 2 Gbit/s connectivity for staked validators.
The environment of a 5G-connected tablet differs significantly from servers that run continuously, and these brief tests do not account for sustained voting power, long-term performance, or consensus resilience under major network traffic.
Mini dictionary: Firedancer — A high-performance, independent validator client for Solana, developed by Jump Crypto to improve network speed, reliability, and decentralization through diverse software implementations.
| Network | Recommended Hardware for Validators | Node Cost Estimate |
|---|---|---|
| Solana | 12 CPU cores, 256 GB RAM, fast SSD, 2 Gbit/s connection | $21,478 |
| Bitcoin | Basic modern computer | $289 |
| Ethereum | Varies, can support Raspberry Pi for light clients | N/A |
Compatibility and network upgrades
Solana launched its Alpenglow consensus in October, moving from on-chain voting transactions to direct validator messaging, initially requiring validators to use Agave software. Firedancer and another validator client, Frankendancer, were not supported during the first migration phase. Before new regulations in November, Anza required that validators adopt Agave 4.4.1 or Firedancer 26.10.6, underscoring the difference between software compatibility and hardware efficiency.
An October engineering note detailed Firedancer’s management of memory and network systems, including fixes to issues such as VLAN connectivity and information storage. Despite promising tablet testing results, engineers stressed that these trials do not reflect large-scale production efficiency or network management capabilities in persistent, high-traffic environments.
