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

The M4’s 10-core CPU with 4.5 GHz P-cores and 7500 MT/s RAM outperforms the M3’s 4.1 GHz P-cores and 6400 MT/s RAM, delivering 18% higher single-thread and 22% higher multi-thread gains in real-world workloads. The 13-inch M3 model suits students and remote workers needing portability and 18 hours of video playback, with its 1.237 kg weight and 52.6 Wh battery enabling all-day use without a charger. The 15-inch M4 model benefits professionals running video encodes or AI tasks—its 66.5 Wh battery lasts 21 hours and the larger display supports 4K timeline editing with 10-core GPU acceleration. In UAE at AED 4299 vs AED 5799, the M3 is better because it saves AED 1500 while offering 90% of the M4’s performance for daily tasks; in India at ₹104900 vs ₹144900, the M3 wins on value because the ₹40,000 difference doesn’t justify the marginal gains for most users.