Apple's Cuts SSD Performance for Entry-level 2023 MacBook Pro … – Tom's Hardware

When Apple announced its latest M2 Pro- and M2 Max-based MacBook Pros last week, the company boasted about performance gains (up to a 20 percent uplift for the CPU, up to 30 percent for the GPU) and improved battery life. Unfortunately, it appears that one area of performance has taken a step backward for M2 Pro-based MacBook Pros, at least for the $1,999 base model with a 512GB SSD. 

Multiple reports confirm that the SSD on the 2023 14-inch MacBook Pro (M2 Pro, 512GB) is significantly slower than the one found in the 2021 14-inch MacBook Pro (M1 Pro, 512GB). The first word about the performance downgrade came from @ZONEofTECH, who compared the two systems. The M2 Pro system scored 2929 MBps write and 2703 MBps read using the AJA System Test Lite benchmark. Its M1 Pro-based predecessor scored 3450 Mbps on the write test and 4081 MBps on the read test.

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