A fresh glimpse at Apple’s next‑generation silicon
A new leak originating from a Chinese tech forum claims to have uncovered the internal layout of Apple’s upcoming A20 Pro processor. The information, posted on Weibo, is based on a reverse‑engineered solder diagram that allegedly shows the chip’s architecture before Apple’s official reveal.
While Apple has kept the specifications under wraps, the leak provides enough detail for us to start piecing together what the iPhone 18 Pro and the newly‑named iPhone Ultra might be capable of.
Core configuration – a familiar 2+4 split
According to the diagram, the A20 Pro will retain the “2+4” CPU design that Apple introduced with the A19 Pro. This means two low‑power “efficiency” cores paired with four high‑performance cores. The arrangement is designed to balance battery life and raw speed, a formula that has served Apple well in recent flagship models.
Cache upgrades for the efficiency cores
One of the most notable changes highlighted by the leak is an increase in L2 cache for the efficiency cores. The diagram suggests an 8 MB L2 cache, a jump from the 6 MB found on the A19 Pro. Larger cache can reduce memory latency for background tasks, potentially improving overall system responsiveness when the phone is in low‑power mode.
The performance cores, on the other hand, appear to keep the same 16 MB L2 cache as their predecessor. This continuity hints that Apple may be focusing its silicon improvements on power‑efficiency rather than raw performance for this generation.
A seven‑core GPU – a modest bump
The leak also points to a seven‑core GPU, up from the six‑core design used in the A19 Pro. While the increase is modest, Apple has historically paired each new GPU core with architectural refinements that boost graphics throughput and energy efficiency. For Android‑focused readers, this could translate to smoother gaming and better support for high‑resolution video playback on the upcoming iPhone models.
What we still don’t know
The diagram does not reveal the total system‑level cache, the process node (likely a 3‑nm or 4‑nm design given industry trends), or any details about the Neural Engine. Apple typically introduces a more powerful AI accelerator with each new chip, so we can expect improvements in on‑device machine‑learning tasks such as photo processing and voice recognition.
How this matters for UK contract shoppers
For UK consumers who plan to upgrade via a carrier contract, the A20 Pro’s rumored efficiency gains could mean longer battery life on the iPhone 18 Pro and Ultra – a key selling point when you’re locked into a 24‑month deal. Additionally, the upgraded GPU may make the new iPhones more future‑proof for mobile gaming, an increasingly important consideration as game streaming services expand.
If the leak proves accurate, carriers may use these specs to differentiate their iPhone bundles, perhaps offering higher‑speed data plans to complement the expected performance uplift.
Looking ahead to Apple’s September event
Apple is slated to host its annual September keynote on 9 September, where the iPhone 18 Pro, iPhone Ultra and the A20 Pro chip are expected to be officially unveiled. Until then, the leak remains unverified, and Apple could still make last‑minute changes to the silicon.
For now, the information gives Android enthusiasts a rare peek at Apple’s roadmap and a basis for comparison with upcoming Snapdragon and MediaTek releases slated for later this year.
Bottom line
While the leak should be treated with caution, the details – a 2+4 core layout, expanded L2 cache on the efficiency cores, and a seven‑core GPU – suggest Apple is fine‑tuning power efficiency rather than chasing a massive performance jump. UK buyers eyeing a contract upgrade can anticipate modest improvements in battery life and graphics, which could make the iPhone 18 Pro and Ultra attractive options in the autumn market.
Source: Chinese‑language post on Weibo, cited by GSMArena (Sept 4 2026).
