TSMC's InFO-PoP packaging physically fuses RAM onto the A18 Pro die, and that single design choice is why the MacBook Neo is stuck at 8GB.
Why 8GB is baked in
Why 8GB is baked in
- DRAM sits directly on top of the A18 Pro as one fused package.
- Swapping to a 12GB module would have blown past the $599 target.
- Board-level RAM upgrades are impossible with this packaging approach.
- Max Weinbach and High Yield both flagged this limitation on X.
- Component sourcing and product design happen months or years ahead.
- An ongoing DRAM shortage pushed 12GB LPDDR5X costs to $70 per unit.
- Absorbing that expense would have wrecked the budget-friendly price point.
- A19 Pro availability would also cannibalize iPhone 17 Pro production.
- MacBook Neo's A18 Pro carries a full 6-core GPU inside.
- Apple locked one core through software via chip binning.
- iPhone 16 Pro runs the same silicon with all cores enabled.
