The biggest U.S. chipmakers, including Intel Corp., Nvidia Corp., Advanced Micro Devices Inc. and Qualcomm Inc., are starting off 2022 by unveiling products that push further into each other’s main territories, signaling they’re girding for tough competition as semiconductor demand increases across industries.

Intel, clinging to its title of world’s largest chipmaker by revenue, showed off graphics chips aimed at fighting Nvidia and AMD in their area of domination. Nvidia’s latest chips are targeted at persuading more laptop owners to choose its highly specialized graphics capabilities, and AMD touted products meant to maintain its market share gains.

Qualcomm, the biggest maker of mobile-phone chips, bolstered its push to win a chunk of the personal-computer market, leveraging its strength in smartphone technology.