As of August 2026, the most profitable coin for AMD Ryzen 9 3900X mining is Wownero (WOW) on RandomWOW, with 9,995 H/s hashrate and $1.45/day net profit after electricity costs ($0.0727/kWh).
AMD Ryzen 9 3900X
Best coin: Wownero — net $1.45/day
Specifications
System Build (used prices)
Mining Profitability
| Coin | Algo | Hashrate | CPU W | System W | Income/day | Elec/day | Profit/day | CPU H/s/W | Sys H/s/W | CPU $/W | Sys $/W | ROI CPU | ROI System |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wownero (WOW) | randomwow | 9,995 H/s | 110 W | 171 W | $1.75 | $0.30 | $1.45 | 90.9 | 58.6 | $0.0159/W | $0.0102/W | 3.0mo | 7.6mo |
| Monero (XMR) | randomx | 10,602 H/s | 110 W | 171 W | $0.34 | $0.30 | $0.04 | 96.4 | 62.1 | $0.0031/W | $0.0020/W | 9.1yr | 23.1yr |
| Quantum Resistant Ledger (QRL) | randomx | 10,602 H/s | 110 W | 171 W | $0.32 | $0.30 | $0.02 | 96.4 | 62.1 | $0.0029/W | $0.0019/W | 16.5yr | ∞ |
| Zephyr Protocol (ZEPH) | randomx | 10,602 H/s | 110 W | 171 W | $0.29 | $0.30 | > -$0.01 | 96.4 | 62.1 | $0.0027/W | $0.0017/W | ∞ | ∞ |
| Salvium (SAL) | randomx | 10,602 H/s | 110 W | 171 W | $0.27 | $0.30 | -$0.03 | 96.4 | 62.1 | $0.0025/W | $0.0016/W | ∞ | ∞ |
| Tari (XTM) | randomx | 10,602 H/s | 110 W | 171 W | $0.21 | $0.30 | -$0.09 | 96.4 | 62.1 | $0.0019/W | $0.0012/W | ∞ | ∞ |
Income trend — WOW (last 30 days)
Gross income (upper line) and net profit (lower) at 9,995 H/s. Shaded area is electricity cost.
Frequently Asked Questions
What is the most profitable coin to mine with AMD Ryzen 9 3900X?
The most profitable coin for AMD Ryzen 9 3900X is Wownero (WOW) on the RandomWOW algorithm. Net profit: +$1.45/day (gross income $1.75 minus electricity $0.30 at $0.0727/kWh). Actual profitability depends on your electricity rate, system downtime, and other overhead costs.
What is the hashrate of AMD Ryzen 9 3900X on RandomWOW?
The typical hashrate of AMD Ryzen 9 3900X on RandomWOW is 9,995 H/s at 110W CPU power draw. This is a realistic sustained 24/7 mining figure on a standard system without fine-tuning. Total system power from the wall is 171W (4.1 kWh/day).
How much does a AMD Ryzen 9 3900X mining system cost?
Minimum used build for AMD Ryzen 9 3900X: CPU — $130, motherboard (any AM4 B550/X570) — $95, RAM (DDR4 3200 8GB × 2) — $59, SSD — $18, PSU 550W — $30. Total: ~$331. Prices are approximate, based on the used market.
How long does it take for AMD Ryzen 9 3900X mining to pay for itself?
At current network parameters and $0.0727/kWh electricity: CPU-only payback — ~3 months, full system (~$331) payback — ~8 months. These estimates do not account for potential downtime, hardware wear, changes in network difficulty, or coin price fluctuations. Use the table above to enter your electricity rate for accurate numbers.