Bitcoin miners are enjoying a resurgence in profitability as the cryptocurrency's price has climbed 14.6% over the past 30 days. The spot hashprice — the value of 1 petahash per second (PH/s) of hashing power — now stands at $60.49, up from $53.20 a month ago, a 13.7% increase. This bull run has pushed many ASIC mining rigs back into the black, particularly the latest high-performance models.
Top ASIC Miners: Who Leads the Pack?
At the top of the profitability chart is Bitmain's Antminer S21e XP Hydro 3U, which delivers an impressive 860 terahash per second (TH/s) at a power draw of 11,180 watts. Despite its energy appetite (equivalent to three to five residential air conditioners), it generates an estimated $35.66 in daily profit at an operating expense of $0.06 per kWh. Close behind is the American-made Teraflux AH3880 by Auradine, offering 600 TH/s at 8,700 watts, with daily earnings estimated around $30 (based on the article's comparative data).
Other strong performers include Bitmain's Antminer S21 XP+ Hydro (500 TH/s, 5,500 W, $22.17/day), Bitdeer's Sealminer A2 Pro Hydro (500 TH/s, 7,450 W, $19.36/day), and Canaan's Avalon A1566HA 2U (480 TH/s, 8,064 W, $17.27/day). These figures highlight that cutting-edge ASICs can now yield substantial returns in the current bull market.
Micro Miners: Small Hashrate, Small Rewards
For hobbyists and low-power enthusiasts, micro miners offer a fun way to participate even if earnings are modest. Bitmain's Antminer S17+ (73 TH/s, 2,920 W) nets only $0.19 per day, while the tiny Nerdminer NerdQaxe++ (4.8 TH/s, 76 W) launched in March 2025 earns $0.18 daily. Canaan's Avalon Nano 3S (6 TH/s, 140 W) and Bitaxe Supra Hex 701 (4.2 TH/s, 75 W) also bring in around $0.16 and $0.14 per day, respectively. These rigs prove that even minimal hashing power can yield some profit at current prices.
The S9 Saga: From Profit to Loss, Then Back Again
Not all miners are thriving. The once-legendary Bitmain Antminer S9 series is now losing money at standard electricity rates ($0.06/kWh). For instance, the S9 SE (16 TH/s, 1,280 W) loses about $0.88 daily, while the original S9 (11.5 TH/s, 1,127 W) bleeds $0.93 per day. However, with cheap power at just $0.02/kWh, these old workhorses claw back into profitability: the S9 SE earns $0.35 per day, and the S9 Hydro (18 TH/s) nets $0.25. Even the oldest S9 models can yield $0.18 daily under bargain electricity. This demonstrates how electricity cost can flip the economics of aging hardware.
In summary, the 2025 Bitcoin bull run has created a clear divide in mining profitability. Top-tier ASICs generate tens of dollars daily, while older and micro miners survive on pennies — but only if electricity is cheap. As network difficulty continues to rise, the gap between efficient and obsolete rigs will only widen.