Why MacBook Neo can only have 8GB of RAM.

AleksandarK from TechPowerUp, explaining why the RAM in MacBook Neo is limited to 8GB:

Some online criticism emerged regarding Apple's decision to offer a laptop with only 8 GB of RAM in 2026, with no options for higher RAM capacity. However, this 8 GB of RAM is a design choice Apple made at TSMC's packaging facilities for the A18 Pro chip. Inside the MacBook Neo, Apple decided to reuse the iPhone 16 Pro's chip, which comes from TSMC with 8 GB of LPDDR5X memory. This memory is attached directly above the A18 Pro SoC using Integrated Fan-Out Package on Package (InFO-PoP), creating a 3D wafer-level fan-out package. This package is designed to hold memory directly above the SoC die, resulting in a smaller PCB design without the LPDDR5X module taking up over 100 mm² of PCB area.

Therefore, Apple's MacBook Neo configurations are limited to what the A18 Pro SoC is originally packaged with. These are 8 GB LPDDR5X modules that are shipped directly to TSMC for integration into the InFO-PoP package, which is later shipped back to Apple for integration into these new MacBook Neo laptops.

Future upgrades to the MacBook Neo, say to the A19 Pro, would mean it would get 12GB of RAM.