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Nvidia is investing $3.5 billion in fellow chipmaker MediaTek as the two companies deepen a partnership spanning artificial intelligence infrastructure, personal computers, and automotive technology. The investment, announced Monday, comes as Nvidia continues expanding its influence across nearly every layer of the rapidly growing AI hardware market.

The investment will come through Nvidia's purchase of convertible bonds issued by Taiwan-based MediaTek. The deal is part of MediaTek's broader $3.9 billion convertible bond offering, giving Nvidia a significant financial stake while strengthening the companies' long-term technology relationship.

At the center of the expanded partnership is Nvidia's NVLink Fusion technology. MediaTek will use the platform to help develop custom AI processors, known as XPUs, that can work alongside Nvidia's computing infrastructure. The arrangement could make it easier for major technology companies to build specialized chips without abandoning Nvidia's broader AI ecosystem.

MediaTek is best known for chips used in smartphones and other consumer electronics, but the company has increasingly moved into higher-value areas of the semiconductor industry. It is now pursuing opportunities in custom computing, AI infrastructure, personal computers, and vehicles as demand for specialized processors continues to grow.

The partnership could be particularly important as cloud providers and other large technology companies increasingly look beyond standard GPUs. Custom AI chips can be designed for specific workloads, potentially improving efficiency and reducing costs, while Nvidia's NVLink technology is intended to allow those processors to operate alongside Nvidia hardware.

The two companies are also collaborating on AI-powered PCs. Their work includes Nvidia's RTX Spark and DGX Spark platforms, while MediaTek is incorporating Nvidia technology into automotive platforms designed for the emerging market for AI-defined vehicles.

For Nvidia, the investment represents another step in a broader strategy of expanding beyond selling GPUs. The company has increasingly invested in startups, infrastructure providers, and other semiconductor companies while developing software and networking technologies that encourage customers to remain within its ecosystem.

The strategy has also revived questions about the circular nature of AI financing. Nvidia sells the chips that power AI companies, invests in businesses that develop AI technology, and increasingly provides financial support that can help build the infrastructure needed to purchase Nvidia hardware. Critics argue that such arrangements can make the industry's enormous spending figures harder to interpret.

Those concerns come as Nvidia's own business continues to grow at extraordinary rates. The company recently reported $96.22 billion in quarterly revenue, more than doubling from a year earlier, while forecasting roughly 70% revenue growth for fiscal 2028. Its data-center business alone generated about $89 billion during the latest quarter.

Ultimately, the MediaTek investment illustrates how Nvidia is trying to make itself indispensable throughout the AI computing stack. By combining financial investment with technology partnerships covering data centers, custom processors, PCs, and vehicles, Nvidia is positioning itself to benefit even when customers choose to build specialized chips of their own. The $3.5 billion deal therefore isn't simply an investment in another chipmaker—it is another move to expand the Nvidia ecosystem as the AI hardware race accelerates.