Analyst Ming-Chi Kuo has revealed memory configuration details for the upcoming base iPhone models: iPhone 18 and iPhone 18e will receive 9GB of RAM thanks to a new A20 chip design — six crystals of 1.5GB each instead of four at 2GB in current iPhone 17 models. The release is expected in spring 2027.
At first glance — clear progress. But there is context that transforms this news from triumph into compromise.
What changed while Apple was preparing iPhone 18
At WWDC 2025, Apple presented iOS 27 with a new level of local AI: the most powerful on-device Apple Intelligence model requires at least 12GB of memory. That's exactly how much the iPhone 17 Pro, iPhone 17 Pro Max, and iPhone Air have. The base iPhone 17 with 8GB falls short of this tier.
"Supports Apple Intelligence" and "supports the most powerful local Siri model" are now two different statements.
Gadget Hacks
Expressive Voices and advanced dictation features are tied exclusively to the 12-gigabyte threshold. This is the first time Apple has drawn a line within Apple Intelligence itself — before iOS 27, the base requirement was 8GB for any supported device.
What will iPhone 18 users get in 2027
The future owner of a base iPhone 18 with 9GB will find themselves in the same situation as the current owner of an iPhone 17 Pro with 12GB — but only if Apple doesn't raise the bar again. There is progress:
- +1GB relative to iPhone 17 (8GB → 9GB)
- New A20 architecture with six crystals — potentially more energy efficient
- iPhone 18 Pro models are expected to retain 12GB, so the gap between lineups will remain
But 9GB is still not 12GB, which iOS 27 already requires for the most advanced features. If Apple raises the minimum again by 2027 — for example, to 16GB for the new generation of models — the base iPhone 18 could find itself in the same role as the iPhone 17 today: supports AI, but not all of it.
Practical summary
Apple is moving in the right direction, but is catching up to its own timeline. Increasing memory in base models is a real change for the user: faster local model performance, less cloud offloading, more stable multitasking. The question is not whether the upgrade deserves attention — it does. The question is the pace.
If by the time iPhone 18 launches in spring 2027, Apple doesn't raise the requirements for the most powerful on-device AI above 9GB — the base model will be the first in several generations not to immediately become "second class" within Apple's own Apple Intelligence ecosystem. This is the condition under which 9GB becomes a real step forward, not just a narrowing of the gap.
