Ethereum Classic (ETC) Mining Profitability Calculator – for Pools and Solo

Mining Ethereum Classic (ETC) remains a viable option for crypto enthusiasts looking to earn passive income through GPU or ASIC-based mining. With the Etchash consensus algorithm in place, ETC maintains resistance to large-scale ASIC dominance, allowing individual miners with capable hardware to still participate effectively. This guide dives deep into ETC mining profitability, hardware requirements, pool vs. solo strategies, and essential tools to maximize returns.

Understanding the Ethereum Classic DAG File Size

A critical factor in Ethereum Classic mining is the DAG (Directed Acyclic Graph) file, which is generated and loaded into GPU memory during the mining process. The Etchash algorithm relies on this file, and its size grows over time—directly impacting which GPUs can continue mining.

As of now, the DAG size for Ethereum Classic is 3.929 GB. This means only graphics cards with more than 4 GB of VRAM can successfully mine ETC. Cards with exactly 4 GB may still function but are nearing the end of their usability.

When Will GPUs Stop Supporting ETC Mining?

• GPUs with 4 GB VRAM: Expected to stop mining ETC around October 2, 2025.
• GPUs with 6 GB VRAM: Can continue mining until approximately September 7, 2032.

⚠️ Note: These estimates assume mining on Linux systems. Windows environments consume additional GPU memory for UI rendering, reducing available VRAM. As a result, Windows users may face earlier incompatibility, even with 4 GB+ cards.

👉 Discover how to optimize your mining rig for maximum ETC returns with real-time data analysis.

Hardware Requirements for Ethereum Classic Mining

Both GPU and ASIC miners can effectively mine Ethereum Classic. However, most home miners rely on GPUs due to accessibility and flexibility.

Supported GPU Brands

• NVIDIA: GeForce GTX 1060 6GB, GTX 1070, GTX 1080, RTX series
• AMD: RX 570, RX 580, RX Vega series, RX 6700 XT and above

Minimum Requirements:

• At least 4 GB of VRAM
• Compatible drivers (preferably Linux-based for optimal performance)
• Stable internet connection
• Mining software compatible with Etchash

While ASICs exist for Etchash, they are less common and typically used by large-scale operations. For most individuals, a multi-GPU rig using consumer-grade hardware remains the standard approach.

The network also features uncle blocks, which are valid but not part of the main chain. Advanced mining calculators like 2CryptoCalc factor in uncle block rewards and transaction fees when estimating profitability—offering more accurate projections than basic tools.

Pool Mining vs. Solo Mining: What’s the Difference?

Choosing between pool and solo mining significantly impacts your earnings stability and technical demands.

Pool Mining

In pool mining, you combine your hashrate with other miners. Rewards are distributed based on contribution (e.g., PPLNS system). This model offers:

• Steady, predictable income
• Lower variance in payouts
• Suitable for small to mid-sized rigs

Most miners choose pool mining due to its reliability.

Solo Mining

Solo mining means you work independently. If your rig finds a block, you receive the full reward—but if no blocks are found, your earnings are zero.

This method is recommended only for:

• Experienced miners
• Those with high hashrate capable of finding 2–3 blocks per day

Given the high variance, solo mining should be approached strategically.

👉 Compare real-time mining profitability across different hardware setups and pool options.

Ethereum Classic Solo Mining Calculator Insights

While exact earnings depend on current network difficulty and hashrate, here's a breakdown of what solo mining could yield:

For example, a solo miner with access to significant hashrate might expect occasional large payouts rather than daily income. Timing and network conditions play a crucial role.

Professional miners often use dynamic strategies—monitoring network difficulty trends and deploying rigs or rented hashpower at optimal moments to increase success odds.

💡 Pro Tip: Use historical difficulty charts to identify low-competition periods for temporary solo pushes.

Recommended Mining Pools for ETC

Here are two top-performing pools supporting both pool and solo mining:

1. 2Miners SOLO Pool

• Reward System: SOLO
• Fee: 1.5%
• Minimum Payout: 0.1 ETC
• Reported Hashrate: 546.45 Gh/s
• Active Miners: 222
• Server Locations: Asia, EU, USA

Ideal for experienced miners seeking full block rewards.

2. 2Miners PPLNS Pool

• Reward System: PPLNS (Pay Per Last N Shares)
• Fee: 1%
• Minimum Payout: 0.1 ETC
• Reported Hashrate: 32.79 Th/s
• Active Miners: 8,487
• Server Locations: Asia, EU, USA

Best for consistent earnings with lower entry barriers.

Mining Software Configuration Examples

Below are ready-to-use command-line examples for popular mining software. Replace YOUR_WALLET_ADDRESS and RIG_ID with your actual wallet and rig name.

Phoenix Miner

PhoenixMiner.exe -pool etc.2miners.com:1010 -wal YOUR_WALLET_ADDRESS -pass x -worker RIG_ID
pause

lolMiner

lolMiner.exe --algo ETCHASH --pool etc.2miners.com:1010 --user YOUR_WALLET_ADDRESS.RIG_ID
pause

Rigel

rigel.exe -a etchash -o stratum+tcp://etc.2miners.com:1010 -u YOUR_WALLET_ADDRESS -w RIG_ID
pause

Gminer

miner.exe --algo etchash --server etc.2miners.com:1010 --user YOUR_WALLET_ADDRESS.RIG_ID
pause

T-Rex

t-rex.exe -a etchash -o stratum+tcp://etc.2miners.com:1010 -u YOUR_WALLET_ADDRESS -w RIG_ID -p x
pause

Team Red Miner

teamredminer.exe -a ethash -o stratum+tcp://etc.2miners.com:1010 -u YOUR_WALLET_ADDRESS.RIG_ID -p x
pause

Nanominer

cmdline_launcher.bat -algo etchash -coin etc -pool1 etc.2miners.com:1010 -wallet YOUR_WALLET_ADDRESS -rigName RIG_ID
pause

NBminer

nbminer.exe -a etchash -o stratum+tcp://etc.2miners.com:1010 -u YOUR_WALLET_ADDRESS.RIG_ID
pause

Ensure firewall settings allow outbound connections on port 1010.

Frequently Asked Questions (FAQ)

Q: Can I mine Ethereum Classic with a 4 GB GPU?

Yes, but only until the DAG size exceeds available VRAM—expected around October 2025. After that, even 4 GB cards will become incompatible.

Q: Is solo mining worth it for beginners?

Generally, no. Solo mining carries high risk due to payout variance. Beginners should start with PPLNS pool mining for stable returns.

Q: Does Windows affect ETC mining performance?

Yes. Windows uses more GPU memory for display purposes, reducing available VRAM. Mining on Linux is recommended for better efficiency and longer hardware usability.

Q: Are ASICs better than GPUs for ETC?

ASICs offer higher efficiency but lack flexibility. For most users, modern GPUs provide a better balance of cost, availability, and resale value.

Q: How are uncle blocks handled in earnings calculations?

Advanced calculators include uncle block rewards and transaction fees in projections, improving accuracy. Basic tools may overlook these—leading to inflated estimates.

Q: Can I rent hashpower to mine ETC solo?

Currently, hashpower rental is not supported on major platforms for ETC solo mining due to technical and trust limitations.

Final Thoughts: Maximizing Your ETC Mining ROI

Ethereum Classic continues to offer opportunities for miners willing to understand its technical nuances—from DAG growth timelines to strategic pool selection. Whether you're using a single GPU or managing a full rig, staying informed about network changes ensures long-term profitability.

👉 Access live ETC mining stats and calculate your potential earnings in real time.

By combining the right hardware, software, and strategy, you can make the most of the remaining years before GPU mining phases out—projected beyond 2032 for 6 GB+ cards. Stay ahead of the curve with data-driven decisions and optimized configurations.