MacBook Air 15″ (2024) · M3 · 8 GB / 256 GB
CPU index
137
×1.37 vs M1
GPU index
164
×1.64 vs M1
Memory
8
GB unified
Storage
256
256 GB
Bandwidth
100
GB/s
This MacBook Air 15″ configuration uses the M3 (8-CPU/10-GPU) with 8 GB unified memory and 256 GB storage. On MacDiff its CPU index is 137 (×1.37 vs the entry-level M1 Air) and its GPU index is 164 (×1.64). The origin of the scale is the 2020 MacBook Air M1 at 100/100 — MacDiff’s own relative units, not Geekbench or Apple scores.
This is the only MacBook Air 15″ configuration in the MacDiff catalog right now.
Family: MacBook Air. Released 2024. Apple date: 2024-03-08. Compare it with other Macs on the compare tool, or read how the index is built on the methodology page.
Configurations
| Chip | CPU / GPU | CPU | GPU | Mem | Storage | From | |
|---|---|---|---|---|---|---|---|
| M3 (8-CPU/10-GPU)this page | 137 | 164 | 8 GB | 256 GB | $1499 | Compare |
Specifications
- Weight
- 1.51 kg
- Wi‑Fi
- Wi-Fi 6E (802.11ax)
- Bluetooth
- 5.3
- Display
- 15.3-inch Liquid Retina display
Notes
Base RAM raised from 8GB to 16GB on 2024-10-30; options list covers the full sales history.
Related in MacBook Air
FAQ — MacBook Air 15″ on MacDiff
What is the CPU index of this MacBook Air 15″?
This configuration (M3 (8-CPU/10-GPU)) has a CPU index of 137, about ×1.37 the MacBook Air M1 baseline of 100 on MacDiff.
What is the GPU index?
GPU index 164 (≈ ×1.64 vs M1). Indices are relative references, not raw Geekbench scores.
How does it compare to the MacBook Air M1?
Relative to the fixed MacDiff baseline (100/100), this page shows roughly ×1.37 CPU and ×1.64 GPU for the selected memory/storage config. Use Compare to stack it against other Macs.