Apple’s next big silicon leap is shaping up to be both exciting and complicated. In 2026, Apple is expected to debut its first 2nm iPhone chipsets, widely tipped to be called A20 and A20 Pro. These next-generation processors are rumored to power the iPhone 18 lineup and a future iPhone Fold, with the standard iPhone 20 expected to follow in early 2027. With A-series chips produced at massive scale, it’s no shock that Apple has reportedly locked down a huge share of TSMC’s early 2nm manufacturing capacity. The twist: even with that advantage, Apple may still face supply constraints as demand for 2nm production outstrips what TSMC can deliver at launch.
The reason comes down to sheer industry pressure. TSMC’s 2nm node is positioned as the most desirable manufacturing technology for flagship smartphones, AI hardware, and high-end computing. While TSMC is said to be planning additional 2nm facilities to increase output, that doesn’t instantly solve near-term bottlenecks—especially when multiple major customers are racing to secure wafer supply at the same time. As a result, even top-tier clients can encounter shortages, delays, or allocation limits.
Reports differ slightly on how much of the initial 2nm supply Apple has secured—some claims put it at more than half, while others suggest closer to half. Either way, the bigger takeaway is consistent: Apple is expected to remain committed to TSMC rather than shifting part of its iPhone processor production to another foundry.
That’s notable because, on paper, Samsung could look like an appealing backup plan. Samsung has been pushing its 2nm GAA (Gate-All-Around) process heavily and recently announced what it describes as the world’s first 2nm GAA chipset, the Exynos 2600. Samsung is also expected to begin mass production of 2nm GAA at its Taylor, Texas facility as early as next year, which could give it an edge in building a more global manufacturing footprint. The company has also landed major agreements and multiple 2nm-related orders, signaling strong interest in its next-generation node.
So why wouldn’t Apple diversify and bring Samsung into the mix?
The biggest factor is manufacturing yield and reliability. Apple’s iPhone chips ship in enormous volumes, and even small yield differences can translate into major supply issues, cost increases, and inconsistent product availability worldwide. Apple is believed to value TSMC’s track record for achieving strong yields on new nodes—something that reduces risk when ramping production for a brand-new iPhone cycle. There’s also the business reality that Apple may not want to jeopardize its long-standing foundry relationship by splitting its most important chip production between competitors.
Another key point is that Samsung’s 2nm GAA node may still be too early in its maturity curve. Earlier estimates suggested Samsung’s yields were around 50% during early Exynos 2600 production, and it would likely need to approach roughly 70% to make large-scale output economically efficient. By comparison, TSMC’s reported 2nm trial production yields were estimated around 60% when it started, which can be a meaningful difference when you’re talking about millions of chips.
Looking beyond 2nm, the long-term roadmap may also influence Apple’s thinking. Reports indicate Apple has not yet begun discussions about a future A16 node and may instead be planning to move from 2nm directly toward an A14-class process later on. That would extend the partnership even further into the next era of advanced lithography. But there’s a growing elephant in the room: cost. Wafer prices for next-gen nodes are rising fast, and A14-class wafers have been rumored to reach around $45,000 each. If prices continue climbing, Apple may eventually see strategic value in cultivating a second manufacturing option—not necessarily for immediate 2nm needs, but as leverage and insurance for future nodes.
For now, though, the most likely outcome is a familiar one: Apple stays the course with TSMC, even if that means navigating early 2nm supply tightness. The first wave of 2nm iPhone chips could deliver major performance and efficiency gains, but the industry-wide fight for leading-edge capacity suggests that availability, ramp timing, and cost will be just as important as the technology itself.
