As of September 2026, the most profitable coin for AMD Ryzen 9 3900X mining is Tari (XTM) on RandomX, with 12,185 H/s hashrate and $0.14/day net profit after electricity costs ($0.0784/kWh).
AMD Ryzen 9 3900X
Best coin: Tari — net $0.14/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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tari (XTM) | randomx | 12,185 H/s | 110 W | 171 W | $0.46 | $0.32 | $0.14 | 110.8 | 71.4 | $0.0042/W | $0.0027/W | 2.6yr | 6.5yr |
| Monero (XMR) | randomx | 12,185 H/s | 110 W | 171 W | $0.46 | $0.32 | $0.14 | 110.8 | 71.4 | $0.0042/W | $0.0027/W | 2.6yr | 6.6yr |
| Salvium (SAL) | randomx | 12,185 H/s | 110 W | 171 W | $0.34 | $0.32 | $0.02 | 110.8 | 71.4 | $0.0031/W | $0.0020/W | 22.2yr | ∞ |
| Zephyr Protocol (ZEPH) | randomx | 12,185 H/s | 110 W | 171 W | $0.33 | $0.32 | < $0.01 | 110.8 | 71.4 | $0.0030/W | $0.0019/W | ∞ | ∞ |
| Quantum Resistant Ledger (QRL) | randomx | 12,185 H/s | 110 W | 171 W | $0.21 | $0.32 | -$0.11 | 110.8 | 71.4 | $0.0019/W | $0.0012/W | ∞ | ∞ |
Income trend — XTM (last 30 days)
Gross income (upper line) and net profit (lower) at 12,185 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 Tari (XTM) on the RandomX algorithm. Net profit: +$0.14/day (gross income $0.46 minus electricity $0.32 at $0.0784/kWh). Actual profitability depends on your electricity rate, system downtime, and other overhead costs.
What is the hashrate of AMD Ryzen 9 3900X on RandomX?
The typical hashrate of AMD Ryzen 9 3900X on RandomX is 12,185 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 — $131, motherboard (any AM4 B550/X570) — $95, RAM (DDR4 3200 8GB × 2) — $59, SSD — $18, PSU 550W — $30. Total: ~$333. 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 $0.0784/kWh electricity: CPU-only payback — ~2.6 years, full system (~$333) payback — ~6.5 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.