M3 Max (40-core GPU): unified memory vs VRAM tables

Bandwidth ~400 GB/s · memory options [48, 64, 128] GB · year 2023.

Unified memory is shared with macOS and apps. Treat discrete VRAM “fits” as overstated unless you reserve headroom. Prefer VRAM fit with a higher overhead, and compare against discrete GPUs only as a contrast—not a 1:1 map.

Educational. Not a purchase guide.