Apple used four 128GB NAND chips used in the M1 Pro 512GB MBP, but only used two 256GB NAND chips in the M2 Pro 512GB MBP.
The M1 Pro 512GB MBP had a 3,950 MB/s write speed and a 4,900 read speed. The M2 Pro 512GB MBP had a 3,154 MB/s write speed and a 2,973 read speed (3,950 vs. 3,154 write...