Introduction
For years, blockchain networks have struggled to scale sufficiently to support the high throughput, low-cost, and secure transactions required by payment companies and expected by consumers. Visa's team has been closely monitoring technological innovations behind blockchain scalability, particularly advancements in Ethereum's Layer 2 solutions and alternative networks like Solana.
Our goal is to leverage these technological features to enhance existing payment networks and create new products for commercial and financial flows. While multiple blockchain networks may coexist in the payment ecosystem, Solana stands out due to its speed, scalability, and low transaction costs, making it an excellent candidate for efficient stablecoin settlements like USDC.
Key Advantages of Solana for Payments
1. Visa-Level Transaction Throughput
As a global payment network, Visa processes over 65,000 transactions per second (TPS). While Solana hasn't yet matched this scale, it averages 400 TPS and peaks at 2,000+ TPS during demand surges—far surpassing Ethereum (~12 TPS) and Bitcoin (~7 TPS).
Parallel Transaction Processing:
Solana’s architecture enables simultaneous execution of non-conflicting transactions via multithreading, unlike sequential processing in Bitcoin/Ethereum. This design:
- Boosts efficiency for bilateral/multiparty payments.
- Allows smart contracts (programs) to run in parallel by specifying interacting accounts.
👉 Discover how Solana’s speed compares to traditional payment rails
2. Predictable Low Costs Enhance Payment Efficiency
Solana’s fees are typically under $0.001—orders of magnitude cheaper than Bitcoin/Ethereum, where fees fluctuate unpredictably.
Localized Fee Markets:
- Congestion for one account (e.g., NFT trades) doesn’t affect others (e.g., USDC transfers).
- Fees spike only for in-demand assets, while other transactions remain stable.
| Blockchain | Avg. Fee | Fee Predictability |
|------------------|-----------|--------------------|
| Solana | <$0.001 | High |
| Ethereum | $1–$50+ | Low |
| Bitcoin | $1–$30+ | Low |
3. Fast Transaction Finality
- Solana: Achieves finality in 500–600 ms via optimistic confirmation (2/3 validator votes).
- Bitcoin: Requires ~60 minutes (6-block confirmation).
- Ethereum: Averages ~6 minutes but can delay under congestion.
Faster finality improves merchant settlements and user experience.
4. High Availability: Diverse Nodes & Validator Clients
Network Resilience:
- 1,893 active validators (July 2023) across 40+ countries.
- Multiple independent validator clients (Solana Labs, Jito-Solana, Firedancer) reduce single-point failures.
This decentralization ensures uptime even during technical disruptions.
5. Modern Enterprise-Grade Capabilities
Solana’s parallel processing, low costs, and resilience create a scalable platform for:
- Stablecoin settlements (e.g., USDC).
- Corporate treasury operations.
Visa’s pilot expansion to Solana aims to test these real-world applications.
Frequently Asked Questions (FAQs)
Q1: Why did Visa choose Solana over Ethereum for USDC settlements?
A: Solana offers higher throughput (~400 TPS vs. Ethereum’s ~12 TPS) and lower fees (<$0.001), making it more suitable for high-volume payments.
Q2: How does Solana’s fee market prevent congestion spikes?
A: Fees increase only for specific congested accounts (e.g., NFT trades), while other transactions remain unaffected—ensuring cost predictability.
Q3: Is Solana decentralized enough for Visa’s standards?
A: Yes. With 1,893 validators globally and multiple independent clients, Solana meets enterprise-grade redundancy requirements.
Q4: Can Solana handle Visa’s peak transaction loads?
A: While not yet at Visa’s 65,000 TPS, Solana’s 2,000+ TPS peaks and parallel processing show promise for scaling payment pilots.
👉 Explore Solana’s potential for mainstream finance
Conclusion
Solana’s speed, cost efficiency, and reliability position it as a leading blockchain for payment innovation. Visa’s USDC pilot highlights Solana’s potential to transform cross-border settlements and digital commerce. As adoption grows, expect further integration of blockchain efficiency into global finance.