The M1 Pro has 256-bit LPDDR5 SDRAM memory, and the M1 Max has 512-bit LPDDR5 SDRAM memory.
8 GB and 16 GB configurations are available. The SoC and RAM chips are mounted together in a system-in-a-package design. The M1 uses a 128-bit LPDDR4X SDRAM in a unified memory configuration shared by all the components of the processor. The M1 Ultra features a 48- or 64-core GPU with up to 8192 ALUs and 21 TFLOPs of FP32 performance. In total, the M1 Max GPU contains up to 512 execution units or 4096 ALUs, which have a maximum floating point (FP32) performance of 10.4 TFLOPs. The M1 Pro integrates a 16-core (14 in some base models) graphics processing unit (GPU), while the M1 Max integrates a 32-core (24 in some base models) GPU. In total, the M1 GPU contains up to 128 Execution units or 1024 ALUs, which Apple says can execute up to 24,576 threads simultaneously and which have a maximum floating point (FP32) performance of 2.6 TFLOPs. Each GPU core is split into 16 Execution Units, which each contain eight Arithmetic Logic Units (ALUs). The M1 integrates an Apple designed eight-core (seven in some base models) graphics processing unit (GPU). The M1 Ultra combines two M1 Max chips in one package for a total of 20 CPU cores and 96 MB system level cache (SLC). The M1 Pro and M1 Max have 24 MB and 48 MB respectively of system level cache (SLC). The two high-efficiency cores share 4 MB of L2 cache. Each high-performance cluster shares 12 MB of L2 cache. The eight high-performance cores are split into two clusters. The high-performance cores are clocked at 3228 MHz, and the high-efficiency cores are clocked at 2064 MHz.
The M1 Pro and M1 Max use the same ARM big.LITTLE design as the M1, with eight high-performance "Firestorm" (six in the lower-binned variants of the M1 Pro) and two energy-efficient "Icestorm" cores, providing a total of ten cores (eight in the lower-binned variants of the M1 Pro). The SoC also has a 8MB System Level Cache shared by the GPU. The high-performance cores have an unusually large 192 KB of L1 instruction cache and 128 KB of L1 data cache and share a 12 MB L2 cache the energy-efficient cores have a 128 KB L1 instruction cache, 64 KB L1 data cache, and a shared 4 MB L2 cache. Apple claims the energy-efficient cores use one-tenth the power of the high-performance ones. This combination allows power-use optimizations not possible with previous Apple–Intel architecture devices. It has a hybrid configuration similar to ARM DynamIQ and Intel's Lakefield, Alder Lake and Raptor Lake processors.
The M1 has four high-performance "Firestorm" and four energy-efficient "Icestorm" cores, first seen on the A14 Bionic. The initial versions of the M1 chips contain an architectural defect that permits sandboxed applications to exchange data, violating the security model, an issue that has been described as "mostly harmless". Initial support for the M1 SoC in the Linux kernel was released in version 5.13 on June 27, 2021. These chips differ largely in size and the number of functional units: for example, while the original M1 has about 16 billion transistors, the M1 Ultra has 114 billion.Īpple's macOS and iPadOS operating systems both run on the M1. Apple introduced the M1 Ultra in 2022, combining two M1 Max chips in one package. The M1 Max is a higher-powered version of the M1 Pro, with more GPU cores and memory bandwidth and a larger die size. The original M1 chip was introduced in November 2020, and was followed by the professional-focused M1 Pro and M1 Max chips in October 2021. Its successor, Apple M2, was announced on Jat WWDC. At the time of introduction in 2020, Apple said that the M1 had the world's fastest CPU core "in low power silicon" and the world's best CPU performance per watt.
Macbook air m1 vs macbook pro m1 series#
The M1 chip initiated Apple's third change to the instruction set architecture used by Macintosh computers, switching from Intel to Apple silicon 14 years after they were switched from PowerPC to Intel, and 26 years after the transition from the original Motorola 68000 series to PowerPC.
Macbook air m1 vs macbook pro m1 mac#
as a central processing unit (CPU) and graphics processing unit (GPU) for its Mac desktops and notebooks, and the iPad Pro and iPad Air tablets. Apple M1 is a series of ARM-based systems-on-a-chip (SoCs) designed by Apple Inc.
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