# Solo Mining GeForce RTX 4090 on QuarkChain (QKC)

Machine-readable solo mining datasheet for running **GeForce RTX 4090** on the **QuarkChain (QKC)** Ethash 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: QuarkChain (QKC) — Algorithm: Ethash
- Rig Hashrate: 126.75 MH/s (1.267460e+08 H/s)
- Power Consumption: 260 W (6.24 kWh/day)
- Energy Efficiency: 2.05 W/MH/s (J/MH)
- Network Hashrate: 23.47 GH/s (2.346601e+10 H/s)
- Network Hash Share: 5.401260e-03 (0.540126%)
- Expected Block Discovery: about 17,192.9 blocks per year (mean time: ~31 min)
- Operational Breakeven Electricity: 0.0280 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 | 126.75 MH/s | H/s | Nominal hashrate on Ethash |
| Device Power Draw | 260 | Watts | Power consumption at wall |
| Energy Efficiency | 2.05 W/MH/s (J/MH) | unit | Energy per unit hash computation |
| Network Hashrate | 23.47 GH/s | H/s | Total active network hash power |
| Network Difficulty | 114,885M | number | Current consensus target difficulty |
| Block Time (Observed) | 9.9 | seconds | Average interval between blocks |
| Block Reward | 1.3300 | QKC | Full coinbase block reward + fees |
| Coin Spot Price | 0.0028 | USD | Current market exchange rate |
| Single Block Value | 0.00 | USD | Gross fiat value of one block |
| Mean Time to Block | 31 min | time | T = (Nethash / Hashrate) * BlockTime |
| Daily Block Probability | 99.99% | percent | 24-hour Poisson chance |
| Monthly Block Probability | 99.99% | 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 | 17192.9390 | count | Average over 365.25 days |
| Daily Gross Output | 62.605363 | QKC | Expected daily coin yield |
| Daily Gross Value | 0.17 | USD | Revenue before power costs |
| Daily Energy Consumed | 6.24 | kWh/day | Kilowatt-hours consumed |
| Power Cost @ 0.05 USD/kWh | 0.31 | USD/day | Low industrial tariff |
| Power Cost @ 0.08 USD/kWh | 0.50 | USD/day | Standard mining tariff |
| Power Cost @ 0.10 USD/kWh | 0.62 | USD/day | Residential tariff |
| Breakeven Electricity | 0.0280 | 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 | 3 min | 0.0 | 0.00 USD |
| 50% Median | 50th | 21 min | 0.1 | 0.01 USD |
| 90% Bad Luck | 90th | 70 min | 0.3 | 0.02 USD |
| 95% Extreme Drought | 95th | 1.5 hours | 0.4 | 0.03 USD |

## Hardware Benchmark Profile

- Device: GeForce RTX 4090
- Slug: geforce-rtx-4090
- Architecture: GPU
- Algorithm: Ethash
- Hashrate: 126.75 MH/s
- Power: 260 W
- Efficiency: 2.05 W/MH/s (J/MH)
- Market Cost: 2,150 / 2,250 / 2,350 USD

## Blockchain Network Overview

- Blockchain: QuarkChain (QKC)
- Consensus: Ethash
- Network Hashrate: 23.47 GH/s (2.346601e+10 H/s)
- Difficulty: 114,885M
- Block Time: 9.9 seconds
- Block Reward: 1.3300 QKC (approx 0.00 USD)
- Spot Price: 0.0028 USD
- Cost of Production (Flagship): 0.00 USD (Jasminer X44-Q)

## Tracked Solo Mining Pools

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

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

## Machine-Readable JSON Summary

```json
{
  "coin_id": "QuarkChain",
  "coin_name": "QuarkChain",
  "ticker": "QKC",
  "algorithm": "Ethash",
  "hardware_name": "GeForce RTX 4090",
  "hardware_slug": "geforce-rtx-4090",
  "hardware_type": "GPU",
  "miner_hashrate_h_s": 126746000.0,
  "power_watts": 260.0,
  "efficiency": "2.05 W/MH/s (J/MH)",
  "network_hashrate_h_s": 23466006801.278606,
  "difficulty": "114,885M",
  "block_time_seconds": 9.914,
  "block_reward_coins": 1.33,
  "spot_price_usd": 0.00278631,
  "single_block_value_usd": 0.0037057923000000004,
  "mean_time_to_block_seconds": 1835.497699555616,
  "daily_block_probability": 1.0,
  "monthly_block_probability": 1.0,
  "yearly_block_probability": 1.0,
  "expected_blocks_per_year": 17192.939009207294,
  "daily_gross_usd": 0.1744379493352225,
  "daily_kwh": 6.24,
  "breakeven_electricity_usd_per_kwh": 0.027954799572952323,
  "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/QuarkChain/geforce-rtx-4090
- Coin datasheet: https://backpow.com/QuarkChain.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