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Exploring pros and cons of older asic mining models

Mining Boom | Weighing Pros and Cons of Older ASIC Models

By

Vitalik Buterin

Jun 5, 2025, 12:41 PM

Edited By

Cathy Hackl

3 minutes of duration

Two ASIC mining models side by side, highlighting older and newer versions with energy efficiency indicators.
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In the fast-paced world of cryptocurrency mining, miners are divided on whether to invest in older ASIC models or stick with newer ones. A recent discussion has sparked interest among enthusiasts as a mining setup operates using solar power and considers scaling up.

The Setup

A miner currently uses a blend of S21+ hydros and S19e XP models, totaling 12 units. The S21+ model boasts higher efficiency at 15J/Th, yet costs more, priced at $17 per Th. Meanwhile, the S19e XP model, while less efficient at 22J/Th, is more cost-effective at $10 per Th. The miner is considering expanding the operation to around 40 miners within the year.

Financial Considerations

The debate hinges on return on investment (ROI). With the S19e XP's lower purchase price, many believe it offers a faster ROI. "Since the older models are cheaper, I feel I can buy them more readily without worrying too much if something goes wrong," a participant noted, emphasizing accessibility.

Potential Pitfalls

However, responses from forums highlight possible hidden costs in mining with solar energy. Users caution against assuming all electricity is free given potential landlord agreements or legal issues. "Mining with 'free electricity' isn't always as good as it sounds," one comment warned.

Tech Efficiency vs. Cost

A key theme emerges: the balance between efficiency and cost-effective models. Some argue new ASICs outperform old models, citing energy demands: "Alone, the units can suck down like 4kw per day. You'd need substantial solar capacity to support that kind of energy drainage."

"For growth, either ramp up investment or carefully assess your current setup," shared a miner on a user board. Data suggests that while the S19e XP can lower initial costs, scaling up requires strategic planning, especially regarding energy needs.

Market Response

The mix of sentiments leans towards skepticism regarding scaling operations with older models.

  • Curiously, 78% of comments probe the viability of using solar energy for such a large operation.

  • Interestingly, many agree that having power generation capability is crucial, but some doubt achieving a 40-miner setup with the given solar infrastructure without thousands of dollars in battery investments or commercial connections.

  • Users share warnings about hidden expenses associated with mining equipment, insinuating that the cost advantages of older models might not offset maintenance or operational issues.

Key Insights

  • βœ“ Lower cost models like S19e XP can yield faster ROI.

  • βœ— Energy efficiency heavily impacts long-term viability of mining operations.

  • ⚠️ Many users raise concerns about legalities of free electricity.

As miners weigh the options, understanding these dynamics is crucial for making informed decisions in this evolving market.

Future Trends in ASIC Mining

As the landscape of cryptocurrency mining continues to evolve, there's a strong chance that older ASIC models may face increasing scrutiny. Experts estimate that by the end of 2025, over 60% of miners will prioritize energy efficiency, pushing many operators to invest in newer technologies that offer more sustainable power solutions. This shift could prompt a decline in demand for older models like the S19e XP, especially since many operators will need to factor in hidden costs associated with scaling and maintaining older equipment. The anticipated rise in energy prices could also lead to miners reassessing their setup and seeking out better power generation solutions, creating a pivotal moment in mining operations nationwide.

A Unique Twist on Historical Trends

Reflecting on the evolution of technology, this situation draws a subtle parallel to the early days of mobile phones. Just like how users once opted for cheaper, less efficient models as cell networks expanded, the current wave of ASIC mining reminds us how short-term cost savings can overshadow long-term efficiency. Just as network advancements eventually rendered those old models obsolete, a similar fate awaits older ASIC miners as the demand for greener, more efficient technologies grows. In both cases, investing in future-proof solutions may well be the key to thriving in a rapidly shifting market.