As of May 2026, the most profitable coin for AMD Ryzen 9 3900X mining is Wownero (WOW) on RandomWOW, with 9,995 H/s hashrate and $0.98/day net profit after electricity costs ($0.0727/kWh).
AMD Ryzen 9 3900X
Best coin: Wownero — net $0.98/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 | $1.28 | $0.30 | $0.98 | 90.9 | 58.6 | $0.0116/W | $0.0075/W | 5.2mo | 1.1yr |
| Salvium (SAL) | randomx | 10,602 H/s | 110 W | 171 W | $0.35 | $0.30 | $0.05 | 96.4 | 62.1 | $0.0032/W | $0.0021/W | 7.7yr | 19.7yr |
| Monero (XMR) | randomx | 10,602 H/s | 110 W | 171 W | $0.33 | $0.30 | $0.03 | 96.4 | 62.1 | $0.0030/W | $0.0019/W | 14.6yr | ∞ |
| Zephyr Protocol (ZEPH) | randomx | 10,602 H/s | 110 W | 171 W | $0.24 | $0.30 | -$0.06 | 96.4 | 62.1 | $0.0022/W | $0.0014/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: +$0.98/day (gross income $1.28 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 — $154, motherboard (any AM4 B550/X570) — $112, RAM (DDR4 3200 8GB × 2) — $70, SSD — $21, PSU 550W — $35. Total: ~$393. 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 — ~5 months, full system (~$393) payback — ~1.1 years. 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.