# Solo Mining GeForce RTX 4090 on Qubitcoin (Q2C)

Machine-readable solo mining datasheet for running **GeForce RTX 4090** on the **Qubitcoin (Q2C)** Qhash network. Evaluates hashrate output, electrical operational expenditure, Poisson block-finding probabilities, and mining economics tracked by BackPoW.

## Executive Summary

- Target Rig: GeForce RTX 4090 (GPU)
- Target Network: Qubitcoin (Q2C) — Algorithm: Qhash
- Rig Hashrate: 5.09 GH/s (5.092350e+09 H/s)
- Power Consumption: 300 W (7.20 kWh/day)
- Energy Efficiency: 0.06 W/MH/s (J/MH)
- Network Hashrate: 13.32 TH/s (1.331881e+13 H/s)
- Network Hash Share: 3.823427e-04 (0.038234%)
- Expected Block Discovery: about 23.5 blocks per year (mean time: ~15.6 days)
- Operational Breakeven Electricity: 0.3046 USD/kWh

## Solo Mining Metrics Table

| Metric | Value | Unit | Description |
| --- | --- | --- | --- |
| Mining Device | GeForce RTX 4090 | text | Hardware model name |
| Device Class | GPU | text | ASIC, GPU, or CPU architecture |
| Device Hashrate | 5.09 GH/s | H/s | Nominal hashrate on Qhash |
| Device Power Draw | 300 | Watts | Power consumption at wall |
| Energy Efficiency | 0.06 W/MH/s (J/MH) | unit | Energy per unit hash computation |
| Network Hashrate | 13.32 TH/s | H/s | Total active network hash power |
| Network Difficulty | 6,227,606,577M | number | Current consensus target difficulty |
| Block Time (Observed) | 514.1 | seconds | Average interval between blocks |
| Block Reward | 50.0000 | Q2C | Full coinbase block reward + fees |
| Coin Spot Price | 0.6827 | USD | Current market exchange rate |
| Single Block Value | 34.14 | USD | Gross fiat value of one block |
| Mean Time to Block | 15.6 days | time | T = (Nethash / Hashrate) * BlockTime |
| Daily Block Probability | 6.22% | percent | 24-hour Poisson chance |
| Monthly Block Probability | 85.45% | percent | 30-day Poisson chance |
| 1-Year Block Probability | 99.99% | percent | 365-day Poisson chance |
| 3-Year Block Probability | 99.99% | percent | 3-year cumulative chance |
| Expected Blocks / Year | 23.4686 | count | Average over 365.25 days |
| Daily Gross Output | 3.212676 | Q2C | Expected daily coin yield |
| Daily Gross Value | 2.19 | USD | Revenue before power costs |
| Daily Energy Consumed | 7.20 | kWh/day | Kilowatt-hours consumed |
| Power Cost @ 0.05 USD/kWh | 0.36 | USD/day | Low industrial tariff |
| Power Cost @ 0.08 USD/kWh | 0.58 | USD/day | Standard mining tariff |
| Power Cost @ 0.10 USD/kWh | 0.72 | USD/day | Residential tariff |
| Breakeven Electricity | 0.3046 | USD/kWh | Max rate before loss |
| Hardware Price | 2,150 / 2,250 / 2,350 USD | USD | Market range (min / med / max) |

## Poisson Block Discovery Model & Variance

Solo mining block discovery follows a memoryless Poisson process where every hash attempt has an identical, independent success probability.

- Formula: `P(X >= 1) = 1 - exp(-t / T)`
- `t` is mining duration in seconds
- `T` is mean time between blocks: `T = (Network Hashrate / Miner Hashrate) * Block Time`

Luck percentile table (reference electricity rate 0.08 USD/kWh):

| Luck Scenario | Percentile | Duration | Power (kWh) | Cost @ 0.08 |
| --- | --- | --- | --- | --- |
| 10% Lucky Hit | 10th | 39.4 hours | 11.8 | 0.94 USD |
| 50% Median | 50th | 10.8 days | 77.7 | 6.21 USD |
| 90% Bad Luck | 90th | 35.8 days | 258.0 | 20.64 USD |
| 95% Extreme Drought | 95th | 46.6 days | 335.7 | 26.86 USD |

## Hardware Benchmark Profile

- Device: GeForce RTX 4090
- Slug: geforce-rtx-4090
- Architecture: GPU
- Algorithm: Qhash
- Hashrate: 5.09 GH/s
- Power: 300 W
- Efficiency: 0.06 W/MH/s (J/MH)
- Market Cost: 2,150 / 2,250 / 2,350 USD

## Blockchain Network Overview

- Blockchain: Qubitcoin (Q2C)
- Consensus: Qhash
- Network Hashrate: 13.32 TH/s (1.331881e+13 H/s)
- Difficulty: 6,227,606,577M
- Block Time: 514.1 seconds
- Block Reward: 50.0000 Q2C (approx 34.14 USD)
- Spot Price: 0.6827 USD
- Cost of Production (Flagship): 0.17 USD (GeForce RTX 5070 Ti)

## Tracked Solo Mining Pools

Solo pools for Qubitcoin (Q2C) routing 100% of block rewards to the miner address:

| Pool Name | Fee | Link | Low Hashrate |
| --- | --- | --- | --- |
| nushypool.com | 1% | [nushypool.com](https://nushypool.com/Quantus_solo/pool) | No |

## Machine-Readable JSON Summary

```json
{
  "coin_id": "Qubitcoin",
  "coin_name": "Qubitcoin",
  "ticker": "Q2C",
  "algorithm": "Qhash",
  "hardware_name": "GeForce RTX 4090",
  "hardware_slug": "geforce-rtx-4090",
  "hardware_type": "GPU",
  "miner_hashrate_h_s": 5092350000.0,
  "power_watts": 300.0,
  "efficiency": "0.06 W/MH/s (J/MH)",
  "network_hashrate_h_s": 13318810642083.059,
  "difficulty": "6,227,606,577M",
  "block_time_seconds": 514.126,
  "block_reward_coins": 50.0,
  "spot_price_usd": 0.682748,
  "single_block_value_usd": 34.1374,
  "mean_time_to_block_seconds": 1344673.2530504765,
  "daily_block_probability": 0.06223278049785774,
  "monthly_block_probability": 0.8545038755043325,
  "yearly_block_probability": 0.9999999999357733,
  "expected_blocks_per_year": 23.468600961913673,
  "daily_gross_usd": 2.1934483736542965,
  "daily_kwh": 7.199999999999999,
  "breakeven_electricity_usd_per_kwh": 0.30464560745198566,
  "hardware_price_usd": {
    "min": 2150.0,
    "median": 2250.0,
    "max": 2350.0
  },
  "retrieved_utc": "2026-10-07T20:25:28Z"
}
```

## Provenance & Integration Links

- Retrieved: 2026-10-07T20:25:28Z
- Canonical HTML page: https://backpow.com/Qubitcoin/geforce-rtx-4090
- Coin datasheet: https://backpow.com/Qubitcoin.md
- Hardware datasheet: https://backpow.com/hardware/geforce-rtx-4090.md
- Solo pools directory: https://backpow.com/solo-pools.md
- Live queries over MCP: https://mcp.backpow.com/mcp (tools `calculate_solo_mining_odds`, `get_hardware_benchmarks`)
- Licence: CC BY 4.0 — https://backpow.com/llms.txt