Fundraise

TensorWave raises $350M Series B at a $1.55B valuation, co-led by AMD and Magnetar

What's the deal? TensorWave, a cloud-computing startup that exclusively uses AMDDealroom has a profile for this one. Try Dealroom → technology instead of Nvidia products, has raised $350M in a Series B round led by AMD and hedge fund Magnetar Capital. The deal values the company at $1.55B — nearly quadrupling its roughly $400M valuation from a year ago.

Founded in 2023, TensorWave operates data centres using AMD chips and plans to use the fresh capital to expand its infrastructure and purchase additional equipment.

"I don't like buying things from monopolies. You don't have a lot of leverage," chief executive Darrick Horton told The Wall Street Journal. He said the company was created to "restore competition to the market."

Why now? Nvidia's dominance over AI infrastructure has left customers hungry for alternatives. As demand for AI compute continues to surge, companies and governments alike are looking to diversify their chip supply chains — creating an opening for AMD-based providers like TensorWave.

AMD's decision to co-lead the round signals it is serious about competing for AI data centre workloads, using TensorWave as a proving ground for its hardware at scale.

What could go wrong? Nvidia's ecosystem advantage is enormous. Its CUDA software platform is deeply embedded in AI development workflows, making it difficult for rivals to lure developers even when the hardware is competitive. TensorWave will need to convince customers that AMD's stack can match Nvidia on performance, reliability, and software support.

Scaling data centre infrastructure is also capital-intensive. A $350M raise is significant, but it may not go far against hyperscalers spending tens of billions on Nvidia-powered clusters.

The signal: AMD co-leading this round as a corporate investor underscores a strategic play beyond mere financial returns — it's effectively subsidising the buildout of a live, at-scale showcase for its Instinct MI300X accelerators. TensorWave's leap from roughly $400M to $1.55B in just a year suggests investors see the AI compute supply chain diversifying faster than Nvidia's software moat can lock it down.

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