Bitdeer Technologies Group has emerged as a formidable force in Bitcoin mining, reporting a total hashrate under management of 71 EH/s by the end of December 2025. This significant capacity potentially positions the Singapore-based company ahead of MARA Holdings Inc., a long-standing leader in the sector. The development marks a dynamic shift in the competitive landscape of cryptocurrency mining.
Key Takeaways
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Bitdeer reports 71 EH/s under management, potentially surpassing MARA's 61.7 EH/s.
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December 2025 BTC production jumped 339% year-over-year to 636 BTC.
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Proprietary SEALMINER chips contribute to enhanced energy efficiency.
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Bitdeer is actively expanding into AI and High-Performance Computing (HPC) infrastructure.
Bitdeer's Ascendancy
Bitdeer's impressive 71 EH/s capacity includes 55.2 EH/s dedicated to self-mining, with the remainder from hosted equipment for third parties. This figure represents a substantial increase, growing 18% month-over-month and 229% year-over-year. The company's proprietary SEALMINER chips, particularly the SEAL04-1, boast impressive energy efficiency, operating at approximately 6-7 joules per terahash (J/TH) at the chip level under low-voltage conditions. This efficiency has contributed to a significant surge in Bitcoin production, with December 2025 output reaching 636 BTC, a 339% increase compared to 145 BTC in December 2024.
The Competitive Landscape
MARA Holdings, previously a dominant player, reported an energized hashrate of 61.7 EH/s. While direct comparisons between Bitdeer's "total hashrate under management" and MARA's "energized hashrate" can be complex due to differing reporting metrics, Bitdeer's overall capacity now appears to lead. MARA has historically focused on retaining mined Bitcoin, holding a substantial treasury of over 55,000 BTC, whereas Bitdeer holds a smaller treasury of 2,017 BTC. MARA primarily utilizes Bitmain's Antminer ASIC chips across its 18 data centers.
Strategic Diversification into AI
Beyond its core Bitcoin mining operations, Bitdeer is making significant strategic investments in artificial intelligence (AI) and high-performance computing (HPC) infrastructure. The company is developing AI-ready data centers across global campuses in Canada, Ethiopia, Norway, and the United States. This diversification reflects a broader industry trend where mining companies are leveraging their infrastructure and energy resources for AI-related ventures, seeking new revenue streams amidst fluctuating cryptocurrency market conditions.
Industry Implications
Bitdeer's aggressive expansion and technological innovation, particularly with its custom SEALMINER chips, signal a new era for Bitcoin mining. The company's strategy of selling mined coins to fund growth and AI investments, while a high-risk, high-reward approach, highlights the evolving business models within the sector. As the industry navigates challenges like increasing network difficulty and compressed hash prices, companies like Bitdeer are pushing the boundaries of scale, efficiency, and diversification.
Sources
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Bitdeer challenges MARA as top Bitcoin miner with 71 EH/s capacity, crypto.news.
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Bitdeer Challenges MARA for Top Spot After December Bitcoin Production Jump, TheMinerMag.
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Bitcoin miner Bitdeer surpasses MARA in total hashrate, Cryptopolitan.
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Bitdeer Hits 71 EH/s, Becomes Largest Bitcoin Mining Firm Globally, CoinLaw.
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