Intel shares skyrocketed by 32% on Thursday after Nvidia, the world’s leading AI chipmaker, announced it will invest $5 billion (£4 billion) in its long-time rival. The move not only provides a significant financial boost for Intel but also marks the beginning of a strategic partnership between the two U.S. semiconductor giants to co-develop next-generation data center and personal computer chips.

Under the deal, Nvidia will acquire roughly a 4% stake in Intel, instantly making it one of the company’s largest shareholders. The partnership will focus on designing and manufacturing advanced chips to meet surging global demand for artificial intelligence infrastructure and computing power.

The announcement comes at a pivotal moment for Intel, which has struggled in recent years to keep pace with faster-growing competitors. Once considered the dominant force in semiconductors, the company has lost ground in both data centers and PCs. Nvidia’s investment, combined with recent U.S. government funding for Intel, is seen as a lifeline that could help restore its competitive edge.

The market reaction was immediate: Intel’s stock soared by more than 30% in a single day, reflecting renewed investor optimism. Nvidia shares also gained about 3%, as the company continues to expand its influence beyond its core GPU dominance into broader areas of the semiconductor market.

Industry analysts say the collaboration is highly significant. By pooling Intel’s manufacturing expertise with Nvidia’s cutting-edge leadership in AI chip design, the two companies could accelerate innovation in processors critical to data-heavy industries, cloud computing, and consumer PCs. The tie-up also signals a pragmatic shift in Silicon Valley, where fierce rivals are increasingly willing to collaborate in the face of geopolitical challenges, global supply chain strains, and booming demand for AI hardware.

The deal comes as Washington intensifies efforts to strengthen U.S. semiconductor production, reduce reliance on foreign supply chains, and ensure that American companies remain at the forefront of the technology race. For Intel, the Nvidia partnership may provide the credibility and resources needed to re-establish itself as a global leader. For Nvidia, the investment secures a broader foothold across the chip ecosystem at a time when AI adoption is reshaping every corner of the tech industry.

Together, the partnership could mark a turning point for Intel’s recovery and a new chapter for Nvidia’s expansion, underlining how collaboration—even among competitors—has become critical in the race to dominate the future of artificial intelligence and computing.