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MacBook Air (M1, 2020) - base model has 7-core GPU.
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The announcement of MacBook Air (M1, 2020) and MacBook Pro (M1, 2020) dropped the resale value of Intel MacBooks sharply. The energy efficiency of the M1 doubles the battery life of M1-based MacBooks from the previous Intel-based MacBooks.
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The 2020 M1-equipped Mac mini draws 7 watts when idle and 39 watts at maximum load, compared with 20 watts idle and 122 watts maximum load for the 2018, 6-core Intel i7 Mac mini. The M1 was welcomed with positive reviews and recorded competitive performance and efficiency in popular benchmarks ( Geekbench 5, Cinebench R23). Other components include an image signal processor (ISP), an NVMe storage controller, Thunderbolt 4 controllers, and a Secure Enclave. The M1 contains dedicated neural network hardware in a 16-core Neural Engine, capable of executing 11 trillion operations per second. 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 4266 MT/s LPDDR4X SDRAM in a unified memory configuration shared by all the components of the processor. In total, the M1 GPU contains up to 128 Execution units or 1024 ALUs, which by Apple's claim can execute up to 24,576 threads simultaneously and have a maximum floating point (FP32) performance of 2.6 TFLOPs.
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Each GPU core is split into 16 Execution Units, which each contain 8 Arithmetic Logic Units (ALUs). The M1 integrates an Apple-designed eight-core (seven in some base models) graphics processing unit (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 however, only 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. The M1 has four high-performance 'Firestorm' and four energy-efficient 'Icestorm' cores, providing a hybrid configuration similar to ARM DynamIQ and Intel's Lakefield and Alder Lake processors.