When Apple officially announced its firt self-innovate structure desktop/laptop processor the M1, there was a belief that it was a larger version of the A14, with a similar architecture and a TSMC 5nm process. But recently, TechInsights released a comparison of the M1 and A14’s core designs, which clearly show the differences between the two, and finally solved the mystery.
First, on the CPU side, the M1 is integrated with four Firestorm high-performance cores and four Icerom energy efficiency cores, eight in total, and the A14 is integrated with two Firestorm high-performance cores and four Icerom energy efficiency cores, six in total. The level 2 cache is the same for each core, so the M1 large core level 2 cache is twice as large as the A14 cache, and the small core level 2 cache is the same, but the M1 system cache is 25% smaller. On the GPU side, the M1 has eight cores, while the A14 has four cores.In terms of NPU, the two are similar, with 16 new neural engines.In terms of DDR memory controller, the M1 has eight, and the A14 has four.Overall, the M1 is about 37% larger than the A14.