Based on testing of 11 modern ASIC miners, mining data center operator Intelion named the profitability leader for November 2025. The top spot went to the Bitmain Antminer S21 XP 270 TH/s: the device mined 0.00317115 BTC per month (about $340) with a profitability of 2.27% monthly, equivalent to 27.21% annually. Overall, the tested models showed monthly profitability ranging from 1.54% to 2.27%.
Profitability Leaders in November 2025
The Bitmain Antminer S21 XP 270 TH/s topped the ranking by BTC mined and profitability despite a higher price compared to other models. These results reflect the performance relative to current network conditions in November; a detailed analysis of leaders and trends includes a full list of tested devices and their metrics. The overall mining range among devices was 0.00239598–0.00317115 BTC per month, which explains the profitability differences mentioned.
Changes in the Top 5 ASIC Miners
Within the top five most profitable devices, there was a reshuffle: the Bitmain Antminer S21 PRO 234 TH/s maintained its top 3 position, while other S21 series models dropped lower. MicroBT devices in the ranking reduced their presence: from two models in the top 5, only one remained, highlighting the strengthening position of the S21 line amid current market adjustments. For more information on MicroBT solutions, see the article on the M70 series.
Impact of Network Difficulty on Profitability
In November, mining difficulty decreased by 4.28%: at the start of the month, it was 155.97 T, dropping to 149.30 T by month-end according to Cloverpool data. Lower difficulty increases profitability per unit of hashrate, and in November this effect allowed modern ASIC miners to maintain stable profitability, partially offsetting the price decline. The impact of difficulty changes on overall profitability depends on the power and energy efficiency of each device.
Bitcoin Market Dynamics
Bitcoin’s price fell by 17% in November, reducing miners’ fiat revenue at the same mining output. The combined effect of price drop and difficulty reduction determined the final equipment profitability: while lower difficulty boosts returns, price remains a significant factor in profit calculations. As a result, most tested ASIC miners showed profitability between 1.54% and 2.27% monthly.
Why This Matters
Whether you operate from one to a thousand devices, these results help assess which models yield more BTC under current network conditions: more powerful machines like the S21 XP produce more mining output all else equal. However, the increase in mining per unit of hashrate due to difficulty drop may not fully compensate for losses from price decline, so overall profit in dollars or rubles still depends on bitcoin price and electricity costs.
For small and medium miners, key factors remain energy efficiency, purchase price, and equipment availability: high performance pays off only with reasonable entry cost and low operating expenses. Monitor difficulty changes and the ratio of mining output to expenses — this will determine which machines are more profitable to run.
What to Do?
- Recalculate current profitability considering up-to-date difficulty and BTC price: use your actual electricity rates and equipment efficiency factors.
- Compare energy efficiency and hashrate of your devices with leader benchmarks — if you have older models, evaluate the feasibility of upgrading or buying more efficient ASICs.
- Assess the risk of purchasing expensive devices: higher performance yields more BTC but requires greater initial capital.
- Maintain network and profitability point monitoring: difficulty changes can quickly alter mining economics, so automated accounting is important.
- Consider payback time and possible price fluctuations when planning scaling — decide whether you focus on BTC accumulation or fiat income.
