Apple has employed TSMC’s most advanced lithography, the third-generation 3nm process, for its A19 Pro and A19, but that does not mean that both chipsets do not have a truckload of differences between them. In fact, the company made sure that its current-generation SoCs appear like two entirely different class of silicon, but it did not point out these contrasts at the iPhone 17 event because it did not want to undermine the capabilities of its devices. Thankfully, a comprehensive table has been shared, revealing a ton of details that you likely did not realize existed, so let us get into the specifications immediately.
The binned version of the A19 Pro obviously shares fewer differences with the A19
The number of transistors for the A19 Pro and A19 were not shared in the specifications table posted by our close acquaintance @faridofanani96, but their codenames ‘Thera’ and ‘Tilos’ and unique designation numbers have been posted below. All versions share the same 6-core CPU, with no change to the clock speeds, so expect the same single-core and multi-core compute performance results between the two. However, the L2 shared cache varies, with the A19 Pro’s Big core and Small core totaling 22MB, whereas the A19 sports 12MB.
Additionally, Apple has given more preference to the A19 Pro regarding SLC, or Single Level Cache, which is 32MB compared to the A19’s 12MB, and this change should decide the majority of the performance differences. As for the graphics processor, there is so much more to know than just the number of cores. The majority of readers are well aware now that the iPhone Air’s A19 Pro has a 5-core GPU configuration, while the iPhone 17 Pro and iPhone 17 Pro Max are equipped with a 6-core GPU. Now here is the interesting stuff; the top-end A19 Pro has 96 EUs, or Execution Units, along with 768 ALUs, or Arithmetic Logic Units.
The binned A19 Pro found in the iPhone Air has fewer EUs at 80, with 640 ALUs, making it the same number as the A19. As for the GPU clock speeds, the 1,620MHz is consistent between all three models. Coming to the memory frequency and bandwidth, the faster A19 Pro’s 12GB LPDDR5X RAM operates at 9,600MT/s, resulting in a 75.80GB/s bandwidth, with the binned variant’s 8,533MT/s delivering a slower 68.26GB/s bandwidth, which is the same as the A19, but the latter is limited to 8GB of memory.