MacBook Air 13 (M3) vs MacBook Air 15 (M4)

The M4’s 10-core CPU (4.5 GHz P-cores) outperforms the M3’s 8-core CPU (4.1 GHz P-cores), and both are fanless, but the M4 delivers 12% higher sustained performance at 9 W PL1 versus 10.5 W PL1. The 13-inch M3 model with 24GB RAM and 1TB storage is best for video editors needing to render 4K timelines in Final Cut Pro without swapping files, while its 52.6 Wh battery lasts 18 hours on local video playback. The 15-inch M4 model, with its 66.5 Wh battery and 16GB RAM, suits coders running Docker containers and VMs simultaneously, benefiting from faster LPDDR5-7500 memory and macOS 15’s optimized multitasking. In UAE at AED 5899 vs AED 5799, the 15-inch M4 is better because it costs less and has a larger battery and newer chip; in India at ₹144900 vs ₹144900, the 15-inch M4 wins on value because it offers superior CPU, larger battery, and bigger screen at the same price.