Efficiency Ratings Guide
Bench-derived efficiency tiers for comparison shopping
How to Read This Guide
Efficiency ratings on this page summarize joules per terahash (J/TH) from our Seoul lab bench or verified client submissions cross-checked on our equipment. Lower J/TH means less electricity per unit of hash at stable clock.
We only list hardware nominally rated 0.05 TH/s or higher. Sub-threshold USB devices and legacy GPU rigs are outside our scope.
Current Reference Table
| Model Class | Nominal TH/s | Bench J/TH (22°C) | Bench J/TH (28°C) | Notes |
|---|---|---|---|---|
| Entry efficiency ASIC | 0.05–0.08 | 38–42 | 41–46 | Suitable for apartment night schedules |
| Mid-tier air-cooled | 0.10–0.20 | 28–32 | 31–35 | Verify breaker headroom before bulk buy |
| High-output single-phase | 0.20–0.35 | 24–27 | 27–30 | Noise may exceed residential norms |
| Latest gen flagship | 0.35+ | 20–23 | 22–26 | Tariff timing critical for ROI |
Figures are illustrative ranges from aggregated audits; request a model-specific audit for purchase decisions.
Seasonal Adjustment for Seoul
Summer humidity in Seongdong-gu and surrounding districts typically adds 3–6% to wall draw versus winter bench baselines when cooling relies on passive airflow. Our audit reports include both temperature points.
Night-Rate Planning
KEPCO time-of-use blocks reward operators who concentrate hash during off-peak hours. Pair this table with a Power Cost Modeling Session to see whether a higher-TH unit still wins on total monthly cost.
Request a Model Not Listed
Manufacturers release firmware and batch variants monthly. If your shortlist model is absent, book a Hashrate Efficiency Audit and we will append verified rows after bench completion.