Bitdeer Touts 9.7J/TH Efficiency in A3 Bitcoin Chip Tests

Singapore-based Bitdeer (Nasdaq: BTDR) announced that it has successfully tested its SEAL03 Bitcoin mining ASIC chip, achieving a power efficiency of 9.7 joules per terahash (J/TH).

In a press release on Monday, Bitdeer stated that the performance trials followed the chip’s tape-out last November and confirmed that its efficiency aligns with the target of 10 J/TH.

According to Bitdeer’s product roadmap unveiled last year, the SEAL03 will be integrated into its proprietary SEALMINER A3 mining rigs, with mass production set to begin in Q2.

However, the final efficiency of the A3 mining rig remains uncertain. Bitdeer previously projected an efficiency range of 11–12 J/TH, which, if accurate, would be on par with Bitmain’s Antminer S21XP Hydro, currently on the market with a 12 J/TH efficiency rating.

In May, Bitdeer secured a $100 million investment from stablecoin giant Tether to support data center expansion and proprietary mining hardware development. The company then acquired fabless semiconductor chip design firm Desiwe in June through an all-stock deal valued at $140 million.

Last month, Bitdeer reported that it paid $52.8 million to its foundry partner, TSMC, for the SEAL03 tape-out—a crucial step in validating the chip’s design before performance testing.

During its Q4 earnings call in February, Bitdeer revealed that two different chip versions of the A3 were developed, leading to higher tape-out costs compared to previous-generation chips.

However, the company has yet to disclose its expected A3 production capacity for proprietary use and external customers.

Bitdeer aims to expand its proprietary hashrate capacity by 32 EH/s in 2025, primarily powered by its SEALMINER A2 mining rigs, which are already in mass production. In addition, approximately 7 EH/s of A2 production capacity is allocated for external customers this year.

Notably, no independent third parties have publicly released performance reviews for the SEALMINER A1 or A2 models.