# Solo Mining AMD Ryzen 9 3900X on Tari-RandomX (TARI)

Machine-readable solo mining datasheet for running **AMD Ryzen 9 3900X** on the **Tari-RandomX (TARI)** TariRandomX network. Evaluates hashrate output, electrical operational expenditure, Poisson block-finding probabilities, and mining economics tracked by BackPoW.

## Executive Summary

- Target Rig: AMD Ryzen 9 3900X (CPU)
- Target Network: Tari-RandomX (TARI) — Algorithm: TariRandomX
- Rig Hashrate: 12.59 KH/s (1.258600e+04 H/s)
- Power Consumption: 110 W (2.64 kWh/day)
- Energy Efficiency: 114.4 H/W (8.74 W/kH/s)
- Network Hashrate: 62.14 MH/s (6.213685e+07 H/s)
- Network Hash Share: 2.025529e-04 (0.020255%)
- Expected Block Discovery: about 9.7 blocks per year (mean time: ~37.6 days)
- Operational Breakeven Electricity: 0.1674 USD/kWh

## Solo Mining Metrics Table

| Metric | Value | Unit | Description |
| --- | --- | --- | --- |
| Mining Device | AMD Ryzen 9 3900X | text | Hardware model name |
| Device Class | CPU | text | ASIC, GPU, or CPU architecture |
| Device Hashrate | 12.59 KH/s | H/s | Nominal hashrate on TariRandomX |
| Device Power Draw | 110 | Watts | Power consumption at wall |
| Energy Efficiency | 114.4 H/W (8.74 W/kH/s) | unit | Energy per unit hash computation |
| Network Hashrate | 62.14 MH/s | H/s | Total active network hash power |
| Network Difficulty | 48817043892.68142 | number | Current consensus target difficulty |
| Block Time (Observed) | 658.0 | seconds | Average interval between blocks |
| Block Reward | 10,162.2400 | TARI | Full coinbase block reward + fees |
| Coin Spot Price | 0.0016 | USD | Current market exchange rate |
| Single Block Value | 16.61 | USD | Gross fiat value of one block |
| Mean Time to Block | 37.6 days | time | T = (Nethash / Hashrate) * BlockTime |
| Daily Block Probability | 2.62% | percent | 24-hour Poisson chance |
| Monthly Block Probability | 54.97% | 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 | 9.7144 | count | Average over 365.25 days |
| Daily Gross Output | 270.281149 | TARI | Expected daily coin yield |
| Daily Gross Value | 0.44 | USD | Revenue before power costs |
| Daily Energy Consumed | 2.64 | kWh/day | Kilowatt-hours consumed |
| Power Cost @ 0.05 USD/kWh | 0.13 | USD/day | Low industrial tariff |
| Power Cost @ 0.08 USD/kWh | 0.21 | USD/day | Standard mining tariff |
| Power Cost @ 0.10 USD/kWh | 0.26 | USD/day | Residential tariff |
| Breakeven Electricity | 0.1674 | USD/kWh | Max rate before loss |
| Hardware Price | 140 / 160 / 180 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 | 4.0 days | 10.5 | 0.84 USD |
| 50% Median | 50th | 26.1 days | 68.8 | 5.50 USD |
| 90% Bad Luck | 90th | 86.6 days | 228.6 | 18.28 USD |
| 95% Extreme Drought | 95th | 112.6 days | 297.4 | 23.79 USD |

## Hardware Benchmark Profile

- Device: AMD Ryzen 9 3900X
- Slug: amd-ryzen-9-3900x
- Architecture: CPU
- Algorithm: TariRandomX
- Hashrate: 12.59 KH/s
- Power: 110 W
- Efficiency: 114.4 H/W (8.74 W/kH/s)
- Market Cost: 140 / 160 / 180 USD

## Blockchain Network Overview

- Blockchain: Tari-RandomX (TARI)
- Consensus: TariRandomX
- Network Hashrate: 62.14 MH/s (6.213685e+07 H/s)
- Difficulty: 48817043892.68142
- Block Time: 658.0 seconds
- Block Reward: 10,162.2400 TARI (approx 16.61 USD)
- Spot Price: 0.0016 USD
- Cost of Production (Flagship): 0.00 USD (AMD EPYC 9654)

## Solo Mining Connection

Connect your AMD Ryzen 9 3900X Stratum client to a local Tari-RandomX full node or solo pool proxy (e.g. Public-Pool, Solo CKPool). Coinbase rewards go directly to your wallet.

## Machine-Readable JSON Summary

```json
{
  "coin_id": "Tari-RandomX",
  "coin_name": "Tari-RandomX",
  "ticker": "TARI",
  "algorithm": "TariRandomX",
  "hardware_name": "AMD Ryzen 9 3900X",
  "hardware_slug": "amd-ryzen-9-3900x",
  "hardware_type": "CPU",
  "miner_hashrate_h_s": 12586.0,
  "power_watts": 110.0,
  "efficiency": "114.4 H/W (8.74 W/kH/s)",
  "network_hashrate_h_s": 62136854.916487575,
  "difficulty": 48817043892.68142,
  "block_time_seconds": 658.0,
  "block_reward_coins": 10162.24,
  "spot_price_usd": 0.0016349,
  "single_block_value_usd": 16.614246175999998,
  "mean_time_to_block_seconds": 3248534.1280032434,
  "daily_block_probability": 0.026246036495994107,
  "monthly_block_probability": 0.5497257077792905,
  "yearly_block_probability": 0.9999395934088422,
  "expected_blocks_per_year": 9.714412333847735,
  "daily_gross_usd": 0.4418826501566514,
  "daily_kwh": 2.64,
  "breakeven_electricity_usd_per_kwh": 0.1673797917260043,
  "hardware_price_usd": {
    "min": 140.0,
    "median": 160.0,
    "max": 180.0
  },
  "retrieved_utc": "2026-10-07T20:25:28Z"
}
```

## Provenance & Integration Links

- Retrieved: 2026-10-07T20:25:28Z
- Canonical HTML page: https://backpow.com/Tari-RandomX/amd-ryzen-9-3900x
- Coin datasheet: https://backpow.com/Tari-RandomX.md
- Hardware datasheet: https://backpow.com/hardware/amd-ryzen-9-3900x.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