TLDR: Microsoft has entered into a five-year, $9.7 billion agreement with Australian firm IREN to significantly expand its AI cloud capacity, leveraging Nvidia’s high-performance GB300 GPUs. This strategic partnership aims to meet the escalating global demand for advanced AI services and marks a significant pivot for IREN from bitcoin mining to AI infrastructure.
In a major strategic move to bolster its artificial intelligence capabilities, Microsoft has finalized a five-year, $9.7 billion deal with Australia-based IREN. This substantial agreement, announced on November 3, 2025, is designed to significantly expand Microsoft’s computational resources, ensuring the tech giant can deliver robust AI infrastructure to its growing enterprise clientele.
The collaboration grants Microsoft access to cutting-edge computing infrastructure powered by Nvidia’s high-performance GB300 GPUs. The deployment of these critical resources will occur in stages, with full implementation anticipated by 2026 at IREN’s data center located in Childress, Texas. This facility is specifically engineered to support an impressive 750 megawatts of power capacity, a crucial requirement for running intensive and demanding AI workloads.
This landmark deal underscores the soaring global demand for advanced AI services and Microsoft’s aggressive pursuit of compute capacity. It follows closely on the heels of Microsoft’s recent launch of its first production cluster utilizing Nvidia’s GB300 NVL72 systems on its Azure cloud platform. These systems are specifically fine-tuned for complex tasks, including running sophisticated reasoning models, developing agentic AI systems, and processing multi-modal generative AI.
In a related development highlighting the scale of this industry shift, IREN is independently procuring GPUs and associated equipment from Dell Technologies in a transaction valued at approximately $5.8 billion. This separate investment by IREN further emphasizes the company’s commitment to building out its AI-focused data center capabilities.
IREN’s journey itself reflects a broader industry trend. The company, originally a bitcoin-mining enterprise, astutely recognized that its vast array of GPUs could be far more profitably leveraged for the burgeoning field of artificial intelligence. This strategic pivot is now paying off significantly.
The agreement with IREN is part of a series of substantial investments by Microsoft in AI infrastructure. Just last month, the company also entered into another significant arrangement with Nscale, securing approximately 200,000 Nvidia GB300 GPUs for deployment across three European data centers and one in the United States.
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Market analysts interpret these announcements as strengthening Microsoft’s AI infrastructure position, even amidst intensifying competition for AI cloud partners. The deal is seen as a material agreement that reduces Microsoft’s compute-risk, expands capacity for AI training and inference, and is expected to support Azure revenue growth.


