An iPhone 18 Pro DRAM shortage is threatening to leave Apple’s next flagship phone in short supply the moment it launches. Roughly $1 billion worth of finished processors are reportedly stuck at chipmaker Taiwan Semiconductor Manufacturing Company, with no memory to pair them with.
The holdup traces back to the global memory crunch that’s already reshaping Apple’s lineup. With the iPhone 18 Pro and Apple’s first foldable, possibly called the iPhone Ultra, just weeks away, the clock is ticking.
Why the iPhone 18 Pro DRAM shortage is happening
The new A20 Pro chip is at the center of the situation. It’s Apple’s first processor built on TSMC’s advanced N2 process, and production is reportedly going smoothly. Yields are strong, and wafers are coming off the line on schedule.
But the trouble starts at the next step. TSMC packages the A20 Pro using a new wafer-level process, fusing the processor and its mobile DRAM before the chip leaves the fab. That means the memory has to be on hand at the time of packaging, not added later.
Semiconductor analyst Tim Culpan broke the story in his newsletter Wednesday, saying assemblers are working directly with Apple to speed up DRAM deliveries. Apple sources most of its memory from Micron, with smaller orders going to SK Hynix and Samsung.
Culpan wrote that Apple and its partners “remain confident that they can meet initial demand.”
Bloomberg‘s Mark Gurman also reported on the fallout. He says the memory squeeze pushed Apple to steer buyers toward the more expensive MacBook Pro and away from the MacBook Air.
Apple CEO Tim Cook also flagged the issue himself on the company’s July 30 earnings call. He said there were “very significant constraints” with limited flexibility left in the supply chain.
What a billion dollars in stranded chips means
TSMC is currently holding around $1 billion worth of finished Apple silicon that cannot move forward, according to Culpan. The chips themselves are fine, and are simply waiting on memory that hasn’t shown up yet.
That bottleneck could ripple downstream fast. Foxconn and BYD handle the final assembly of iPhones in China and India, building the main logic board before putting a phone together. But if packaged processors arrive late, their production window would get squeezed as well. That would stand true even if Apple manages to pull off a normal launch.
Culpan says assemblers have been told to expect around 200 million units. That figure includes the iPhone 18 Pro, the foldable iPhone Ultra as well as the standard iPhone 18, which is widely rumored to arrive next spring.
While the iPhone Ultra is expected to make up less than 10% of that total, the rest should split evenly between the Pro and standard models.
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What it means for iPhone 18 Pro buyers
Apple and its partners still think they can hit their targets for launch day. But the bigger risk sits just past that opening window. Online orders could see stretched-out wait times, and retail shelves could empty fast.
The foldable iPhone Ultra carries the highest stakes. It’s expected to cost more than $2,000, making it the most expensive iPhone ever sold. A supply crunch for a device that’s already asking a lot of buyers would sting even more.
The broader memory shortage isn’t going away anytime soon, unfortunately. AI data centers are consuming a growing share of the world’s DRAM supply. And the shortage already pushed Apple to raise prices and shuffle production priorities this year. The iPhone 18 Pro launch will be an early test of how much further it can stretch.
Anurag Chawake is a tech-focused writer specializing in smartphones, apps and consumer technology. His interest in computers began during the Windows 98 era, eventually leading him to explore everything from operating systems to mobile devices and PC hardware. Anurag previously contributed to The Indian Express, covering Apple, Android, gaming and the broader technology landscape.
