Apple A19 Pro die shot
The A19 Pro is Apple’s new flagship SoC, fabricated by TSMC on the third-generation 3 nm “N3P” process node, marking a step up in both performance and power efficiency over its A18 Pro predecessor. It features a 6-core CPU configuration (2 high-performance cores + 4 efficiency cores), with the performance cores gaining improvements in front-end bandwidth and branch prediction. On the GPU side, the Pro models gain a full 6-core GPU (while in some variants like the Air it is 5-core), benefiting not just from more cores but improved math-rate performance, second-generation dynamic caching, unified image compression, and hardware-accelerated ray tracing. The chip also features a significantly larger last-level cache (LL-cache) and system-level cache, aiding latency-sensitive workloads. Transistor count is estimated in the order of 25-30 billion, reflecting the higher density possible with N3P. To complement the silicon improvements, Apple has upgraded thermal design in the Pro models (e.g. vapor chamber cooling) to allow the A19 Pro to sustain much greater performance, especially under prolonged load, with Apple claiming up to ~40% better sustained CPU/GPU throughput compared to A18 Pro.
High Resolution Floorplan images available here
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The A19 Pro represents Apple’s most advanced SoC to date, packing in 25–30 billion transistors—a density made possible by TSMC’s third-generation 3 nm N3P process. The die shots reveal distinct architectural zones: large cache banks and CPU performance cores concentrated near the central region, flanked by clusters of efficiency cores designed for sustained low-power operation. Adjacent to these are the 6-core GPU blocks, identifiable by their highly regular, array-like structures, optimized for parallel workloads and now supporting advanced features such as hardware ray tracing. The Neural Engine, significantly enlarged compared to the A18 Pro, is positioned to one side of the die, reflecting Apple’s increased emphasis on on-device AI acceleration. Other visible features include the system-level cache arrays, memory controllers, and display/ISP pipelines, which are critical to Apple’s imaging and ProMotion display technologies. Taken together, the physical layout of the A19 Pro die not only showcases cutting-edge silicon density but also Apple’s careful balance of power efficiency, AI performance, and GPU throughput
