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Apple Samsung 512 GB SSUBX SSD: Half as fast in MacBook Pro 15" 2015 than in MBPR 13" 2014? - Ask Different
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256GB Mac mini' with M2 chip has fewer chips than the previous generation, so it turns out that SSD speed is slow, 512GB MacBook Pro with M2 Pro also slows down -
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SSD Speed Variations in 2014 MacBook Air Still Due to Drive Brand Mix, Not Broader Changes - MacRumors
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