Gartner forecasts that spending on AI data centers will account for more than half of all semiconductor revenue within four years, up from roughly a third in 2026, with total chip revenue passing $1.6 trillion this year. Memory chips remain the largest single contributor. The forecast lands as technology leaders report rising and unpredictable AI compute bills and look at cheaper or self-built models to contain them.

• 36.5% of chip revenue in 2026
• over half within four years
• $1.6T semiconductor revenue in 2026
• memory 54% of 2026 revenue