14 ASIC Rigs Compared at $0.04 Per kWh

Key Takeaways:

• Bitcoin’s hashprice hit $36.46 per PH/s on April 23, 2026, keeping all 14 tracked ASIC miners profitable at $0.04/kWh, asicminervalue.com stats show.
• Bitmain’s Antminer S23 Hydro 3U leads estimated daily earnings at $31.62.
• 13 of the 14 top-ranked bitcoin ASIC miners as of April 23, 2026, require hydro-cooling or immersion-style infrastructure, according to manufacturer specifications.

The Top 14 Most Profitable Bitcoin Miners on April 23, 2026

The hashprice figure, logged by hashrateindex.com, measures the daily revenue a miner earns per petahash of computing power deployed. At $36.46, operators running modern hardware are recording positive margins even as network difficulty stays elevated. The 14 machines in this group of application-specific integrated circuit (ASIC) miners range from $12.73 to $31.62 in daily profit, after electricity costs at $0.04 per kWh, according to metrics collected by asicminervalue.com.

Bitmain Antminer S23 Hydro 3U — $31.62/day

Released January 2026, the S23 Hydro 3U is listed at 1.16 PH/s with a rated power draw of 11,020 watts. Specs indicate an efficiency of approximately 9.5 joules per terahash (J/TH). Bitmain rates the unit at around 50 decibels and specifies 380-415 volt three-phase power requirements. At $31.62 per day, it sits at the top of the profitability ladder under current hashprice conditions.

MicroBT Whatsminer M79S — $29.91/day

Released December 2025, the M79S is rated at 1.35 PH/s with a power draw of 20,000 watts. Specs place its efficiency at roughly 14.81 J/TH. MicroBT lists it as designed for dedicated liquid cooling loops. Daily returns come in at $29.91 based on the current hashprice and a $0.04 per kWh electricity rate.

Bitdeer Sealminer A4 Ultra Hydro — $24.20/day

Scheduled for release in May 2026, the A4 Ultra Hydro is listed at 886 TH/s with a rated power draw of 8,372 watts. While it’s not out yet, specs indicate an efficiency of 9.45 J/TH. Bitdeer states the unit is designed to sustain output at higher ambient temperatures. Once released, it could generate $24.20 per day at current hashprice levels.

Bitmain Antminer S23e Hydro 2U — $23.17/day

Released in April 2026, Bitmain lists this machine at 865 TH/s with an 8,650-watt power draw and a rated efficiency of 10 J/TH. The 2U form factor is specified for high-density rack deployments. Asicminervalue.com details that daily profit based on current stats is an estimated $23.17.

Bitmain Antminer S21e XP Hydro 3U — $20.56/day

Released January 2025, this specific machine is rated at 860 TH/s at 11,180 watts. It is among the older units still appearing in the top profitability rankings as of April 2026. Current hashprice data puts its daily return at $20.56 at $0.04 per kWh.

MicroBT Whatsminer M79 — $19.55/day

Released January 2026, MicroBT‘s M79 hashrate output is rated at 920 TH/s with a 14,500-watt power draw. Specs place its efficiency at around 15.76 J/TH, making it the least efficient hydro unit in the top half of this list. Daily profit comes in at $19.55 under current conditions.

Proto Rig — $18.28/day

Released September 2025, the Proto Rig, manufactured by Block, is the only air-cooled machine in the top 14. Specs list it at 819 TH/s with a 12,000-watt power draw. The manufacturer states its nine hashboards are hot-swappable with on-rack repair times under 90 seconds. Company specifications also note the unit is immersion-ready. Daily profit is $18.28 at current hashprice and $0.04 per kWh.

Bitdeer Sealminer A4 Pro Hydro — $17.62/day

Scheduled for May 2026 release, the A4 Pro Hydro is listed at 680 TH/s with a 7,412-watt draw. Specs indicate an efficiency of around 10.9 J/TH. It would generate $17.62 per day based on current profitability data if it were available today.

Bitdeer Sealminer A3 Pro Hydro — $16.09/day

Released last September, the Bitdeer-manufactured A3 Pro Hydro is rated at 660 TH/s at 8,250 watts with a listed efficiency of 12.5 J/TH. Current hashprice data places its daily return at $16.09 at $0.04 per kWh.

MicroBT Whatsminer M7DS — $15.91/day

Released in March 2026, the M7DS is listed at 680 TH/s with a 9,200-watt draw and a rated efficiency of around 13.5 J/TH. MicroBT positions it within its enterprise-focused M7D hydro series. Daily profit for this machine on April 23 is $15.91 under current conditions.

Bitmain Antminer S23 Hyd — $15.81/day

Released January 2026, the single-unit S23 Hyd is rated at 580 TH/s with a 5,510-watt draw. Specs indicate an efficiency of 9.5 J/TH, matching the rated figure of the S23 Hyd 3U listed above. Daily profit sits at $15.81 based on current hashprice data.

MicroBT Whatsminer M7D — $14.23/day

Released in March 2026, the base Whatsminer model M7D is listed at 634 TH/s at 9,200 watts with a rated efficiency of around 14.5 J/TH. It sits at $14.23 per day based on the current hashprice and a $0.04 per kWh electricity cost.

Bitmain Antminer S21 XP+ Hydro — $12.91/day

Released last summer in July, the S21 XP+ Hydro is rated at 500 TH/s with a 5,500-watt draw and a listed efficiency of 11 J/TH. Current data places its daily return at $12.91 at $0.04 per kWh.

MicroBT Whatsminer M73S+ — $12.73/day

Released December 2025, the M73S+ is listed at 540 TH/s with a 7,200-watt draw and a rated efficiency of around 13.33 J/TH. It sits at the bottom of the current profitability table but remains positive at $12.73 per day under the $0.04 per kWh electricity rate.

For now, the math works in miners’ favor. Stronger hashprice, efficient hydro-cooled rigs, and low-cost power can keep margins intact even as difficulty holds firm. But this window depends on tight variables, electricity rates, network growth, and of course, bitcoin’s price. If any shift materially, today’s profitability table can be reordered quickly. Until then, modern ASIC fleets are operating in a rare stretch where scale, efficiency, and timing are aligned.