Apple A19
system on a chip
The Apple A19 and Apple A19 Pro are a pair of 64-bit ARM-based systems on a chip (SoC) designed by Apple Inc., part of the Apple silicon series. The A19 is used in the iPhone 17 and iPhone 17e, while the A19 Pro is used in the iPhone 17 Pro, iPhone 17 Pro Max, and iPhone Air. Both chips are manufactured by TSMC using the N3P variant of their 3 nm process node. Announced on September 9, 2025, they are the successors to the Apple A18 and Apple A18 Pro processors, respectively.
Design
CPU
Both the A19 and A19 Pro feature a 6-core CPU architecture with two performance cores and four efficiency cores, operating at frequencies up to 4.26 GHz for performance cores and 2.60 GHz for efficiency cores. The A19 Pro variant includes enhanced cache configurations and improved front-end bandwidth and branch prediction on the performance cores.
The performance cores in the A19 feature 8MB of L2 cache, while the efficiency cores have 4MB. The A19 Pro increases this to 16MB for performance cores and 6MB for efficiency cores. Additionally, the A19 includes a 12MB system-level cache, expanded to 32MB in the A19 Pro.
GPU
The A19 features a 4-core or 5-core Apple-designed GPU (80 execution units, 640 ALUs, 5 clusters) based on the new Apple10 architecture, while the A19 Pro includes both 5-core and 6-core configurations depending on the device (96 execution units, 768 ALUs, 6 clusters). The iPhone 17e uses the A19 with a 4-core GPU, unlike the iPhone 17 which has a 5-core GPU. The iPhone Air uses the A19 Pro with a 5-core GPU, while the iPhone 17 Pro and Pro Max feature the full 6-core GPU configuration.
The public source identifies “Apple A19” as system on a chip. This brief keeps that definition visible, then builds a research path around Apple, system and chip.
Why this record matters
A short description can identify a subject without explaining its stakes. For “Apple A19”, the useful work is to connect “system on a chip” to the records capable of establishing context and consequence.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 18, 2026. The linked authority identifier is Q136203029. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2025.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Apple A19”, its source revision and the description used here.
- Expand the search: follow Apple A19 primary sources, Apple A19 archive and Apple research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Apple A19”?
- What terminology or title could unlock a more precise catalogue search?
- Which institution is responsible for the underlying evidence?
Search terms from this dossier
This entry incorporates text from “Apple A19” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.