Apple A20 leak reveals what could power the standard iPhone 18
Apple’s next-generation A20 chip has surfaced in a leaked solder ball map, offering an early look at what may power the standard iPhone 18. The chip appears to be the more affordable, scaled-down version of the A20 Pro, but the leak suggests Apple is still planning meaningful upgrades in efficiency, AI performance, and memory bandwidth.
It is important to note that these details are based on analysis of the leaked map and should be treated as speculation rather than confirmed specifications.
According to the analysis, both the A20 and A20 Pro are expected to use TSMC’s advanced N2 manufacturing process. This would mark a major step forward for Apple’s iPhone chips, as the N2 node is designed to improve performance and power efficiency compared with previous generations.
The A20 Pro reportedly has a bare die size of around 98.80 mm², which is relatively compact considering the level of performance expected from Apple’s premium chip. The standard A20, meanwhile, is estimated to measure between 70 mm² and 80 mm². If accurate, that would make it smaller than the A19, which is said to be around 82.8 mm².
A smaller die size would help Apple manage production costs, especially because N2 wafers are expected to be significantly more expensive than older manufacturing nodes. By trimming the size of the standard A20, Apple could keep the base iPhone model more cost-efficient while still benefiting from a newer process.
One major difference between the A20 and A20 Pro may come down to packaging. The standard A20 appears to rely on traditional package-on-package memory rather than the more advanced packaging expected for the A20 Pro. The Pro version is believed to use a packaging method that improves heat dissipation, helping the chip sustain higher clock speeds.
That thermal advantage may be one reason the A20 Pro is rumored to reach clock speeds of up to 4.93 GHz. The standard A20 is expected to run at lower clocks, which means it likely does not need the same advanced heat management solution.
The GPU could also see a wider gap between the regular and Pro chips. The A20 is expected to feature a 5-core GPU, similar to previous standard A-series chips. However, if the A20 Pro includes more GPU cores, the difference between the two models may be more noticeable than in earlier iPhone generations.
In past years, Apple’s standard A-series chips usually trailed their Pro counterparts by one GPU core. This time, the gap could be larger, potentially giving the iPhone 18 Pro models a clearer advantage in gaming, graphics-heavy apps, and high-performance workloads.
On the CPU side, the A20 is expected to keep Apple’s familiar layout of two high-performance cores and four efficiency cores. This setup has been a core part of Apple’s mobile chip strategy for years, balancing speed with battery life.
The leak also suggests Apple may reduce cache sizes compared with the A20 Pro. The two performance cores could share 8 MB of L2 cache, while the efficiency cores may receive 4 MB. Both figures would reportedly be around 50% lower than the A20 Pro.
This kind of reduction would make sense from a die-size perspective. SRAM has become harder to shrink efficiently on newer chip nodes, so cutting cache is one of the most direct ways to save space and reduce manufacturing costs.
However, Apple may still boost the system-level cache. The A20 could reportedly move from the A19’s 12 MB system cache to 16 MB. That upgrade may help support on-device AI features, especially as Apple continues to push Apple Intelligence across future iPhone models.
The Neural Engine is expected to remain strong. The A20 may use the same dual 16-core Neural Engine configuration as the A20 Pro, along with a dedicated 4 MB cache. If true, this would suggest Apple wants even the standard iPhone 18 to deliver solid AI performance for tasks handled directly on the device.
Another important upgrade could be the memory interface. The A20 is rumored to move to a 96-bit memory bus, matching the Pro chip. A wider memory bus can improve bandwidth, which is increasingly important for AI workloads, camera processing, gaming, and multitasking.
Overall, the leaked A20 details suggest Apple may be taking a more strategic approach with the iPhone 18 lineup. The standard A20 could focus on efficiency, AI capability, and cost control, while the A20 Pro may push higher clock speeds, stronger graphics, and better thermal performance.
If the leak proves accurate, the base iPhone 18 may still receive a notable performance and efficiency upgrade, even if Apple reserves the most powerful features for the Pro models. The A20 may not be the fastest chip in Apple’s next lineup, but it could become one of the most important, powering the mainstream iPhone model that reaches the widest audience.
