Apple A19 Pro vs Apple A18 vs Apple A15 Bionic
Apple A19 Pro
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The Apple A19 Pro (codenamed Thera) is a smartphone chip from Apple that was launched in 2025. It integrates 6 CPU cores divided into two performance cores with up to 4.26 GHz and 16 MB L2 cache and four efficiency cores with up to 2.6 GHz and 6 MB L2 cache. Together, the CPU cores can access the 32 MB system level cache (SLC). L2 and SLC cache size is the main difference to the cheaper Apple A19.
The integrated GPU can offer 5 cores (iPhone Air) or all 6 cores (iPhone 17 Pro) depending on the model and clocks with up to 1620 MHz (via @faridofanani96).
The integrated AI unit called Neural Engine still offers 16 cores, but with improved memory bandwidth according to Apple. Furthermore, the engine can work together with the new AI units in the GPU.
The integrated LPDDR5X memory controller in the iPhones supports 12 GB LPDDR5X-9600 (resp. 8533 in the Air) with up to 75.8 GB/s memory bandwidth.
The CPU performance is improved compared to the Apple A18 Pro by approx. 15% (single core) or 20% (multi-core) and thanks to the new vapor-chamber cooling in the iPhones, sustained performance in particular has been improved.
The chip is manufactured in the modern N3P process at TSMC.
Apple A18
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The Apple A18 is a powerful smartphone processor and formal successor to the A16. This new member of the Apple A processor series debuted in September 2024 alongside the iPhone 16 and iPhone 16 Plus; it features 2 performance cores and 4 efficient cores along with a 35 TOPS NPU and the 5-core A18 GPU.
The chip is normally paired with 8 GB of RAM. It is said to be in large part based on the v9.2A ARM microarchitecture for near-Apple M4 IPC. 5G, Wi-Fi 7, Bluetooth 5.3, various satellite navigation systems and NFC are all supported here.
The more expensive A18 Pro SoC has the same 2 P-cores and 4 E-cores running at slightly higher clock speeds; its graphics adapter is on the other hand significantly faster than what the A18 has. Another crucial little detail is that USB 3.x support is either missing, or disabled somehow on the A18 for USB 2.0 speeds only whereas the A18 Pro has no such issue.
Performance
Multi-threaded benchmarks put it in the same ballpark as the Snapdragon 8 Gen 3 and the Dimensity 9300. As expected from Apple, the A-series processor delivers breathtaking single-thread performance that just about matches the significantly more power-hungry Apple M3 chip. This suggests the P-cores can almost hit the 4 GHz mark when required.
Graphics
Like any modern graphics adapter, the 5-core A18 GPU is RT-enabled. It delivers benchmark scores that are most comparable to the G715 MP11 and the G615 MP6.
Power consumption
It appears the chip is able to briefly consume up to about 9 W when under high load, with average sustained power consumption figures hovering around 3-4 W.
The pretty modern TSMC N3E manufacturing process makes the A-series chip very power-efficient, as of late 2024.
Apple A15 Bionic
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The Apple A15 Bionic is a System on a Chip (SoC) from Apple that is found in the iPhone 13 and iPad Mini (2021) models. It was announced late 2021 and offers 6 cores divided in 2 performance cores and four power efficiency cores. The CPU performance increases only slightly compared to the A14, but GPU (in the higher end models) offers higher gains.
The chip is manufactured in 5nm and integrates 15.8 billion transistors (compared to the 11.8 of the A14).
| Model | Apple A19 Pro | Apple A18 | Apple A15 Bionic | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Series | Apple Apple A-Series | Apple Apple A-Series | Apple Apple A-Series | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Series: Apple A-Series |
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| Clock | 2600 - 4260 MHz | <=3800 MHz | 2020 - 3230 MHz | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| L1 Cache | 1.4 MB | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| L2 Cache | 22 MB | 4 MB | 16 MB | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| L3 Cache | 32 MB | 32 MB | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Cores / Threads | 6 / 6 2 x 4.3 GHz Apple A19 P-Core 4 x 2.6 GHz Apple A19 E-Core | 6 / 6 2 x Apple A18 P-Core 4 x 4.0 GHz Apple A18 E-Core | 6 / 6 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Technology | 3 nm | 3 nm | 5 nm | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Features | 16-core Neural Engine, USB 3.2 Gen 2 (10 Gbps) | 16-core Neural Engine, USB 2.0 (480 Mbps) | ARMv8 Instruction Set, Machine Learning Controller, 16-Core Neural Engine, Secure Enclave, Advanced Image Signal Processor | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iGPU | Apple A19 Pro 6-Core GPU ( - 1600 MHz) | Apple A18 GPU | Apple A15 GPU 5-Core | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Architecture | ARM | ARM | ARM | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Announced | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| TDP Turbo PL2 | 9 Watt | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| NPU / AI | 35 TOPS INT8 | 15.8 TOPS INT8 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Transistors | 15800 Million |
Benchmarks
Average Benchmarks Apple A19 Pro → 100% n=5
Average Benchmarks Apple A18 → 87% n=5
Average Benchmarks Apple A15 Bionic → 59% n=5
- Average benchmark values for this graphics card* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation
