Antminer S9i vs Whatsminer M30S
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Antminer S9i | Specification | Whatsminer M30S |
|---|---|---|
| 14.0 TH/s | Hashrate | 88.0 TH/s |
| 1,320 W | Power Consumption | 3,344 W |
| 94.3 J/TH | Efficiency | 38.0 J/TH |
| 76 dB | Noise Level | 75 dB |
| 4.2 kg | Weight | 11.5 kg |
| 4,504 BTU/hr | BTU Output | 11,410 BTU/hr |
| 83/100 | Home Mining Score | 36/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitmain | Manufacturer | MicroBT |
Profitability Comparison
Antminer S9i
Whatsminer M30S
Based on BTC price of $79,051 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the Whatsminer M30S edges it: 3 of 5 factors go its way (efficiency, hashrate, noise level). The standout gap is 529% more hashrate (14.0 vs 88.0 TH/s) in the Whatsminer M30S's favour. That said, the Antminer S9i isn't beaten everywhere — it still wins power consumption and home mining score. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
Here is every spec where the Antminer S9i and Whatsminer M30S actually differ, with the gap quantified:
- Whatsminer M30S 529% more hashrate (14.0 vs 88.0 TH/s)
- Antminer S9i 61% better power draw (1,320 vs 3,344 W)
- Whatsminer M30S 60% better efficiency (94.3 vs 38.0 J/TH)
- Whatsminer M30S 1% better noise (76.0 vs 75.0 dB)
- Antminer S9i 63% better weight (4.2 vs 11.5 kg)
- Whatsminer M30S 153% more heat output (4,504 vs 11,410 BTU/hr)
- Antminer S9i 131% more home mining score (83.0 vs 36.0)
Cost & ROI Over Time
Hardware cost is only half the story — here is how each miner's upfront price plays out against cumulative profit at a $0.10/kWh rate.
| Antminer S9i | Metric | Whatsminer M30S |
|---|---|---|
| — | Upfront cost (MSRP) | $1,500 |
| -$2.66 | Daily net profit | -$4.82 |
| -$970 | Net after 1 year | -$3,261 |
| -$1,941 | Net after 2 years | -$5,022 |
| -$2,911 | Net after 3 years | -$6,783 |
| — | Payback period | Does not pay back at current rates (negative daily profit) |
Projections assume continuous operation, a flat $0.10/kWh rate, and no hardware degradation, pool fees, or BTC price change. Real-world ROI varies.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
Antminer S9iScore: 83/100. 76 dB noise level.
Best for Efficiency
Whatsminer M30S38.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Antminer S9i vs Whatsminer M30S: which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the Antminer S9i is more profitable at $-2.66/day compared to $-4.82/day for the Whatsminer M30S. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Antminer S9i or the Whatsminer M30S better for noise-sensitive spaces?
The Whatsminer M30S is quieter at 75 dB compared to the Antminer S9i at 76 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the Antminer S9i or Whatsminer M30S?
The Antminer S9i scores 83/100 on our Home Mining Score (vs 36/100 for the Whatsminer M30S). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
What is the efficiency difference between Antminer S9i and Whatsminer M30S?
The Antminer S9i runs at 94.3 J/TH while the Whatsminer M30S runs at 38.0 J/TH — a difference of 56.3 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 60% better efficiency (94.3 vs 38.0 J/TH).