Reports say that the reason the Apple MacBook Neo laptop is not equipped with the A19 Pro chip is due to TSMC's limited high-end production capacity.

IT Home reports on March 6 that tech media Wccftech published a blog post yesterday (March 5), addressing why the MacBook Neo does not come with the more advanced A19 Pro chip. It pointed out that Cook had revealed the fundamental reason: TSMC’s high-end node capacity is limited, resulting in a lack of flexibility in A19 Pro supply.

The cheapest laptop in Apple’s lineup, the MacBook Neo, does not use the latest A19 Pro chip. Instead, it settles for the A18 Pro. The media believes the reason is related to Cook’s remarks in the first fiscal quarter of fiscal year 2026, saying it is due to TSMC’s production capacity.

At the earnings call, Cook clearly stated that the high-end nodes required to produce chips are currently facing serious supply constraints, and that the flexibility across the entire supply chain is far lower than normal levels. This capacity shortage not only forces the MacBook Neo to use an older chip, but also limits the maximum sales volume of the iPhone 17 Pro and Pro Max models that come with the A19 Pro.

The MacBook Neo’s current 8GB memory limit is not something Apple intentionally reduced in its configuration; it is determined by the design architecture of the A18 Pro. The chip uses the InFO-POP packaging technology, in which a single package physically integrates the silicon die and DRAM memory, making the cost of upgrading memory extremely high and even technically difficult to implement. By contrast, the A19 Pro, which uses the same type of packaging technology, ships with 12GB LPDDR5X memory by default.