MacBook Air 13 (M3) vs MacBook Air 15 (M3)

The MacBook Air 13 M3 with 24GB RAM outperforms the 15-inch model in sustained workloads due to its higher 21W PL2 burst power versus 12W PL1, enabling longer peak GPU performance before thermal throttling. The 13-inch model with 24GB RAM and 1TB storage is best for video editors editing 4K ProRes footage across multiple timelines, where extra RAM prevents cache swaps and the larger SSD reduces export delays. The 15-inch model with 16GB RAM and 512GB storage suits coders running Docker containers and VMs simultaneously, where the larger 15.3-inch display improves code readability and the 66.5Wh battery lasts 14.5 hours on light browsing. In UAE at AED 5899 vs AED 5299, the 15-inch wins because it saves AED 600 with nearly identical performance; in India at ₹144900 vs ₹129900, the 15-inch wins because it saves ₹15,000 without sacrificing core capabilities.