Most Profitable Solo Mining Coins GPU 2026: Top 10 ROI

Most Profitable GPU Coins for Solo Mining in 2026

Last month I recalculated the ROI on all twelve GPUs in my mining farm. Five of them lost money. Three broke even. Four actually turned a profit. That’s the reality of solo GPU mining in 2026 — most people forget to account for electricity costs, difficulty spikes, and the actual odds of finding a block.

The math is simple: A profitable solo mining setup needs three things. Low electricity cost (ideally below $0.10/kWh), efficient hardware that doesn’t burn money on power draw, and realistic expectations about block-finding probability. I’ve been tracking my mining results since 2026, and the difference between profitable coins and money pits often comes down to network difficulty and your patience level.

This article breaks down the ten coins where solo GPU mining still makes financial sense in 2026. Every entry includes actual hashrate requirements, realistic block-finding timelines, and honest ROI calculations based on current network conditions.

Understanding GPU Solo Mining Profitability in 2026

Solo mining profitability isn’t just about coin price. Actually, price is maybe 30% of the equation. Network difficulty, your hashrate, electricity cost, and block reward all matter more than most beginners realize.

What most people forget: When you solo mine, you either find a block and get the full reward, or you get nothing. No daily payouts like pool mining. Your profitability depends entirely on finding blocks consistently enough that the rewards exceed your electricity costs over time.

Bottom line: If your electricity costs more than $0.12/kWh, solo GPU mining probably doesn’t make economic sense in 2026. The margins are too thin. I’ve run the numbers on every coin in this list, and above that threshold, you’re essentially gambling with negative expected value.

For context on hardware choices, check out our detailed ASIC vs GPU Mining comparison. While ASICs dominate Bitcoin and some other networks, GPUs still hold advantages on memory-hard and ASIC-resistant algorithms.

Key Metrics for Solo Mining Success

• Expected Time to Block (ETTB): How long until you statistically should find a block. For solo mining, you want this under 90 days ideally.
• Daily Electricity Cost: Power draw × hours × your electricity rate. This number eats into profits every single day.
• Break-Even Price: The minimum coin price where your block rewards cover electricity costs.
• Hardware Efficiency: Hashrate per watt. More important than raw hashrate for profitability.

I track all four metrics in a spreadsheet for each GPU in my farm. Every month I reassess whether each card should keep mining its current coin, switch to something else, or honestly just get sold while it still has resale value.

Top 10 Profitable Coins for Solo GPU Mining

1. Kaspa (KAS) — kHeavyHash Algorithm

Kaspa remains my top pick for solo GPU mining in 2026. The kHeavyHash algorithm favors modern GPUs, block times are one second (yes, one second), and the network difficulty hasn’t exploded like some other coins.

With a mid-range GPU pulling 500-800 MH/s on kHeavyHash, you’re looking at finding a block every 15-30 days depending on network conditions. That’s actually reasonable for solo mining. Current block reward is around 300 KAS, and at $0.0293 per coin, each block delivers meaningful returns.

ROI check: A single RTX 4070 running 24/7 consumes roughly 170W. At $0.08/kWh, that’s $0.33 daily electricity cost or about $10/month. Finding one block monthly easily covers that and provides profit margin.

For detailed profitability calculations, see our Solo Mining Kaspa Profitability guide. We break down exact numbers for various GPU models and electricity rates.

The IceRiver KS3M offers an ASIC alternative for Kaspa, though honestly GPUs remain competitive on this network thanks to the algorithm design.

2. Ergo (ERG) — Autolykos2 Algorithm

Ergo flew under most people’s radar, but the network difficulty is low enough that solo mining actually works with a small GPU farm. The Autolykos2 algorithm is memory-intensive, which keeps ASICs away and gives GPUs a fighting chance.

A decent mining rig with 4-6 GPUs can pull 600-900 MH/s total, putting you in range for a block every 20-40 days. Block reward is 66 ERG currently, and at $0.3491 per coin, the math starts making sense if your electricity is cheap.

What most people forget: Ergo has a capped supply and decreasing block rewards over time. Early solo miners capture more value before rewards drop further. I started mining ERG in 2026 when rewards were higher — those early blocks still contribute to my overall ROI.

3. Ravencoin (RVN) — KawPow Algorithm

Ravencoin remains viable for solo mining if you have efficient GPUs and patient expectations. The KawPow algorithm is ASIC-resistant by design, and network difficulty varies enough that careful timing can improve your odds.

Bottom line: You need at least 200-300 MH/s to consider solo mining RVN seriously. That’s a minimum of 3-4 modern GPUs. Expected time to block sits around 45-60 days with that hashrate, assuming stable network difficulty.

Block reward is 2,500 RVN, which at $0.005653 translates to moderate profitability. The challenge is that RVN price volatility can swing your ROI calculations significantly month to month.

For similar KawPow mining strategies, check out our Solo Mining Meowcoin guide. Same algorithm family, different network dynamics.

4. Flux (FLUX) — ZelHash Algorithm

Flux offers dual benefits: mining rewards plus node hosting opportunities. The ZelHash algorithm runs efficiently on modern GPUs, and network difficulty remains accessible for solo miners with 5+ GPUs.

With 300-400 Sol/s total hashrate, you’re looking at a block every 25-35 days. Block reward is 37.5 FLUX, and at $0.0230, each block covers decent electricity costs with room for profit.

The unique angle here is running Flux nodes for additional income. Solo miners can stack node rewards on top of block rewards, improving overall ROI. That naturally depends on your setup and whether you want to manage node infrastructure.

5. Conflux (CFX) — Octopus Algorithm

When I tested Conflux mining last year during the difficulty spike, I expected terrible results. Actually turned out okay. The Octopus algorithm is GPU-friendly, and the tree-graph structure means faster block times than traditional chains.

A single high-end GPU can pull 50-70 MH/s on Octopus. For solo mining, you want at least 200-300 MH/s to target a block every 30-50 days. Block reward varies but averages around 7-8 CFX.

ROI check: At price unavailable per CFX, you need cheap electricity to stay profitable. Above $0.10/kWh, the margins get uncomfortably thin.

Detailed setup instructions are in our Solo Mining Octopus Conflux guide. Configuration matters more on CFX than most coins.

6. Alephium (ALPH) — Blake3 Algorithm

Alephium runs Blake3, which is incredibly efficient on modern GPUs. I mean really efficient — power draw stays low while hashrate remains competitive. That combination is rare in 2026.

With 2-3 GH/s total hashrate (achievable with 3-4 GPUs), you can target a block every 20-35 days depending on network conditions. Block reward is around 1.25 ALPH per block across the sharded chains.

The catch: Alephium uses sharding, so you’re actually mining on one of four shards. Your effective network difficulty is lower than the total network, which improves solo mining odds. What most people forget: You need to configure which shard to mine, and choosing wisely affects your results.

The Goldshell AL Box offers a compact ASIC option for Alephium, though honestly it’s more of a lottery miner than serious solo rig.

7. Karlsen (KLS) — KarlsenHash Algorithm

Karlsen is basically Kaspa’s cousin — similar architecture, faster block times, lower network difficulty. KarlsenHash runs well on the same GPUs that mine Kaspa efficiently.

A mid-range GPU farm with 2-3 TH/s can find a block every 10-20 days. Block rewards are higher than Kaspa proportionally, making each block worth the wait. The trade-off is lower liquidity and fewer exchange listings.

Bottom line: Karlsen works better for solo miners who plan to hold mined coins rather than immediately selling. Price volatility is significant, so your actual profitability varies more than established coins.

Our Karlsen solo mining guide covers node configuration and optimization. Setup is critical for maximizing block-finding odds.

8. Nexa (NEXA) — NexaPow Algorithm

Nexa designed their algorithm specifically to resist ASICs while favoring GPUs. For solo miners, that’s exactly what you want — level playing field where your consumer hardware competes fairly.

With 20-30 GH/s (4-6 modern GPUs), you’re looking at a block every 40-60 days. Block rewards are substantial — around 100,000 NEXA per block — though coin value is lower than more established projects.

ROI check: Nexa profitability depends heavily on your belief in the project’s future value. Current price makes immediate profit challenging unless electricity is very cheap. This is more of a speculative play than guaranteed income.

For complete setup details, see our Nexa GPU-only PoW guide. The ASIC-resistance design is actually pretty clever.

9. Monero (XMR) — RandomX Algorithm

Okay, technically Monero is CPU-optimized, not GPU. But modern GPUs can still mine RandomX, and for small-scale solo miners with existing gaming rigs, it’s worth considering.

The catch: CPUs crush GPUs on RandomX efficiency. A high-end CPU outperforms most GPUs while using less power. If you’re serious about solo mining XMR, invest in CPU power instead.

That said, a GPU pulling 1-2 KH/s combined with a decent CPU can get you into block-finding range every 60-90 days on Monero. Block reward is currently around 0.6 XMR, and at $342.52, each block is meaningful.

What most people forget: Monero has P2Pool, which is basically decentralized pool mining that mimics solo mining odds. For many miners, P2Pool Monero mining makes more sense than true solo.

For CPU-focused approaches, check our AMD Threadripper RandomX guide. Much better ROI than GPU mining XMR.

10. Zcash (ZEC) — Equihash Algorithm

Zcash rounds out the list as a legacy option that still works for solo GPU mining if you have efficient hardware and extremely cheap electricity. The Equihash algorithm has been around forever, which means both GPUs and ASICs compete on the network.

Bottom line: You’re competing against ASICs on ZEC. That means you need at least 8-10 modern GPUs to have realistic solo mining odds. Expected time to block sits around 90-120 days with that setup.

Block reward is 2.5 ZEC, which at $218.73 can be profitable, but only if your electricity cost is below $0.08/kWh. Above that threshold, the math doesn’t work.

Honestly, Zcash is my lowest recommendation on this list. The ASIC competition makes GPU solo mining borderline viable at best. I include it because some miners have free or heavily subsidized electricity, and in those cases, ZEC can work.

Real ROI Analysis: What the Numbers Actually Show

I pulled my actual mining results from the past six months to show realistic ROI expectations. These are real numbers from my twelve-GPU farm, not theoretical calculator estimates.

During that period, I found 8 blocks across various coins. Total block rewards valued at roughly $2,400 at time of finding. Electricity costs for six months: approximately $580 at my $0.09/kWh rate. That’s a gross profit of $1,820, or about $303 monthly.

The math is simple: $303 monthly divided by twelve GPUs equals roughly $25 per GPU per month. That’s before accounting for hardware depreciation, which is real and matters for long-term ROI calculations.

ROI check: My GPUs cost an average of $450 each when purchased in 2026-2026. At $25 monthly profit per card, break-even is 18 months. I crossed that threshold, so everything now is profit minus depreciation.

What most people forget: Block finding isn’t linear. Some months I found zero blocks. One month I found three. Variance is brutal in solo mining, and you need capital reserves to weather dry spells.

Electricity Cost Reality Check

Your electricity rate determines viability more than any other factor. I’ve calculated break-even rates for each coin on this list:

• Kaspa: Profitable up to $0.13/kWh with efficient GPUs
• Ergo: Needs below $0.11/kWh for consistent profit
• Ravencoin: Marginal above $0.10/kWh
• Flux: Works up to $0.12/kWh if running nodes too
• Zcash: Requires below $0.08/kWh to compete with ASICs

If your electricity costs more than $0.15/kWh, solo GPU mining probably loses money in 2026. The margins are just too tight. Better to buy coins directly or find a different investment.

Hardware Recommendations for Solo GPU Mining 2026

The best GPU for solo mining depends on which algorithm you target. There’s no universal “best” card — efficiency varies by algorithm and coin.

For kHeavyHash (Kaspa, Karlsen): NVIDIA RTX 4070 or 4060 Ti offer the best efficiency per watt. AMD cards work but draw more power for similar hashrate.

For KawPow (Ravencoin, Meowcoin): AMD RX 6800 XT provides better value than NVIDIA equivalents. The architecture handles KawPow more efficiently.

For Blake3 (Alephium): Both NVIDIA and AMD work well. Choose based on price and availability rather than brand loyalty.

What most people forget: Used GPUs can offer better ROI than new cards if you’re patient. I bought three used RX 6800 cards for $320 each last year. They’ve already paid for themselves and keep mining profitably.

For broader hardware comparisons, our Best ASIC Miners guide covers alternatives to GPU mining. Sometimes ASIC lottery miners make more sense depending on your goals.

Building a Solo Mining Rig

You don’t need fancy mining frames or specialized equipment. I run my twelve GPUs across three regular desktop cases with good ventilation. Total investment in cases, risers, and power supplies: roughly $600 beyond the GPU costs.

Key components:

• Power Supply: 80+ Gold rated minimum. Don’t cheap out — PSU failure can kill GPUs.
• Motherboard: Supports multiple PCIe slots. B250 Mining Expert is overkill; regular gaming boards work fine for 4-6 GPUs.
• Cooling: More important than most realize. Overheating kills long-term profitability through hardware degradation.
• Internet: Stable connection matters. Check our internet requirements guide for specifics.

For noise-sensitive environments, see our quiet solo mining solutions. Running GPUs in a home office requires managing both heat and noise.

Operating System and Software Setup

Most solo GPU miners run either Windows 10/11 or Linux-based mining distributions. I use Windows 11 on my main rigs because troubleshooting is easier and hardware compatibility is better.

Our Windows 11 optimization guide covers security hardening and performance tuning. Out-of-box Windows wastes resources on background processes that mining rigs don’t need.

For macOS users (rare in mining but some exist), check our macOS solo mining guide. It’s possible, just not common.

Software recommendations by coin:

• Kaspa: BzMiner or lolMiner, both support solo mining mode
• Ergo: lolMiner or TeamRedMiner for AMD cards
• Ravencoin: T-Rex Miner (NVIDIA) or TeamRedMiner (AMD)
• Alephium: BzMiner with shard configuration

What most people forget: Miner software takes a small dev fee (usually 1%). Factor that into profitability calculations. Over a year, 1% adds up.

Common Mistakes That Kill Solo Mining ROI

I’ve made every mistake listed below. Some cost me money, others just wasted time. Learn from my screw-ups instead of repeating them.

Mining the wrong coin for your hashrate: I spent two months solo mining a coin where my expected time to block was 180 days. Found zero blocks, wasted $150 in electricity. Should have switched to a lower-difficulty coin or joined a pool.

Ignoring electricity costs: Obvious in theory, easy to overlook in practice. I ran two GPUs for three months before realizing they consumed more in power than they could ever earn. Shut them down and sold the cards.

Not monitoring difficulty changes: Network difficulty can spike suddenly when big miners join or new ASICs launch. I’ve had coins go from profitable to worthless in two weeks because difficulty doubled. Watch network stats religiously.

Running inefficient hardware: That old RX 580 might still mine, but it pulls 185W for pathetic hashrate. Newer cards deliver 3x the efficiency. Sometimes upgrading hardware improves ROI more than switching coins.

Forgetting about hardware depreciation: Your GPU loses value over time. A $600 card today might sell for $300 in two years. Factor that $300 loss into your ROI calculations — it’s a real cost even if not paid monthly.

Realistic Expectations for 2026

Bottom line: Solo GPU mining won’t make you rich in 2026. It can generate supplemental income if you have cheap electricity and realistic expectations about variance.

My twelve-GPU farm generates roughly $300-400 monthly after electricity. That’s nice passive income, but it took $5,400 initial investment in hardware plus $600 in supporting infrastructure. ROI over 18 months, and that’s with careful coin selection and $0.09/kWh electricity.

If someone promises 200% ROI on solo mining, run away. Those numbers only work with free electricity and incredibly lucky block finding. Real-world results are more modest.

Joining the Solo Mining Community

Solo mining can feel isolating, especially during dry spells when blocks aren’t coming. Having a community helps maintain perspective and share strategies.

I’m active in several Discord servers focused on solo mining. The shared knowledge about difficulty changes, profitable coins, and setup optimization is genuinely valuable. Plus celebrating block finds with others who understand the odds makes wins more satisfying.

Check our Solo Mining Discord Communities guide for recommended groups. Some focus on specific coins, others cover broader mining topics.

What most people forget: The community also helps during technical problems. When my node kept orphaning blocks on Kaspa, someone in Discord diagnosed the issue in 10 minutes. Would have taken me days to figure out alone.

Alternative: Lottery Mining with Small ASICs

If you want solo mining exposure without building a full GPU rig, small ASIC lottery miners offer another approach. These USB-stick or mini-box miners cost $100-500 and give you tickets in the solo mining lottery.

Examples include the Goldshell Mini-DOGE Pro for Scrypt coins or the IceRiver KS0 Pro for Kaspa.

ROI check: These rarely pay for themselves through mining rewards. Think of them as expensive lottery tickets. Occasionally someone hits a block and covers their investment plus profit. Most buyers just enjoy the novelty.

I run two lottery miners myself — a Goldshell unit on DOGE and an IceRiver on Kaspa. Haven’t hit a block yet, but the low power draw (under 20W combined) means they’re cheap to operate while chasing that big win.

Frequently Asked Questions

Is solo GPU mining still profitable in 2026?

It depends entirely on your electricity cost. Below $0.10/kWh, several coins remain profitable for solo GPU mining. Above $0.12/kWh, you’re probably losing money after electricity costs. Calculate your specific situation using actual power draw numbers and current network difficulty. Don’t rely on online calculators — they often use outdated difficulty data. The math is simple: multiply your daily electricity cost by 30, then compare to realistic monthly block rewards based on your hashrate and expected time to block.

How many GPUs do I need for solo mining?

That naturally depends on the coin and network difficulty. For Kaspa, even a single modern GPU gives reasonable solo mining odds with blocks every 30-60 days. For Ravencoin or Ergo, you probably want 4-6 GPUs minimum to find blocks monthly. Zcash against ASIC competition needs 8-10 GPUs to have any realistic chance. More important than GPU count is total hashrate relative to network difficulty. One efficient new GPU often beats three old inefficient cards.

What’s the biggest risk in solo GPU mining?

Variance is the killer. You might find three blocks one month and zero the next three months. If you can’t financially weather 90+ day dry spells while paying electricity, solo mining will stress you out. The second biggest risk is difficulty spikes that suddenly tank your profitability. I’ve seen coins go from 30-day expected blocks to 200-day expected blocks in two weeks when network hashrate jumped. Always have an exit strategy and don’t invest money you need back quickly.

Should I mine one coin or switch between multiple coins?

I mine 2-3 coins simultaneously across my GPU farm. Four cards on Kaspa, four on Ravencoin, four on whatever looks profitable that month. Diversification reduces variance risk — if one coin has difficulty spike, others might compensate. The downside is managing multiple node setups and tracking profitability across different coins. For beginners, stick to one coin until you understand the workflow. Adding complexity before mastering basics leads to mistakes and lost profitability.

Can I solo mine with gaming when not gaming?

Sure, it’s possible, but profitability suffers. Gaming rigs typically run 4-8 hours daily at most. Solo mining profitability calculations assume 24/7 operation. Running part-time means your expected time to block doubles or triples, making it harder to cover electricity costs. If you have free or very cheap power, part-time mining can work as a hobby. For actual profit, you need dedicated hardware running continuously. My advice: Either commit to 24/7 mining or just enjoy occasional lottery tickets without expecting returns.