Head-to-Head Showdown

Apple MacBook Air 15-inch (M3 16GB) vs Apple MacBook Air 13-inch (M3 8GB Base)

Comparing ARM architecture against ARM for local AI inference. Review generation throughput, memory architecture, and runner compatibility.

Select Any Two Systems to Compare Head-to-Head

System A (Left)

System B (Right)

System A

Apple MacBook Air 15-inch (M3 16GB)

Apple M3 (8-core CPU, 10-core GPU)

16 GB MemoryARM~13.3 t/s

System B

Apple M3 (8-core CPU, 8-core GPU)

8 GB MemoryARM~8 t/s

Specification	Apple MacBook Air 15-inch (M3 16GB)	Apple MacBook Air 13-inch (M3 8GB Base)
Architecture	ARM	ARM
Processor	Apple M3 (8-core CPU, 10-core GPU)	Apple M3 (8-core CPU, 8-core GPU)
Operating System	macOS	macOS
System RAM / Unified Memory	16 GB	8 GB
GPU-Usable Memory (VRAM or unified)	10.7 GB	5.4 GB
Memory Bandwidth	100 GB/s	100 GB/s
Memory Type & Bandwidth	Unified Memory (100 GB/s)	Unified Memory (100 GB/s)
NPU Acceleration (TOPS)	18 TOPS	18 TOPS
Small models (3–7B)	Yes (Compatible)	Yes (Compatible)
8B models (Qwen3 8B)	Yes (Compatible)	No (OOM / Lag)
Estimated 8B Generation Speed	~13.3 t/s	~8 t/s
Recommended Max Context	32k tokens	8k tokens
Power Consumption Envelope	12-22W	10-18W

The buying and sizing guides that explain the numbers above.