On drives with more physical NAND chips, SSD controllers use a process called interleaving to read data from and write data to multiple physical chips at once.
#BLACKMAGIC DISK SPEED TEST SSD READ ONLY PRO#
Both YouTubers took the bottom off of the new MacBook Pro and discovered that the 256GB versions use just one 256GB NAND flash chip, whereas the M1 MacBook Pro uses a pair of 128GB flash chips.
The culprit appears to be the NAND flash configuration. Disk Speed Test will continue to test writes and reads from your disk so. Write speeds dropped from 2,215MB/s in the M1 Pro to 1,463MB/s in the M2 Pro, a smaller but still significant drop. Disk Speed Test is an easy to use tool to quickly measure and certify your disk performance for working with high quality video Simply click the start button and Disk Speed Test will write test your disk using large blocks of data, and then display the result.
Sustained disk read speeds run by Max Tech using the BlackMagic Disk Speed Test showed a drop from about 2,900MB/s in the M1 MacBook Pro to 1,446MB/s in the M2 MacBook Pro. If you go PCI Express SSD, you will get significant speed boosts around 700+ read/writes. 2.6 i5 / 128GB SSD : SSD speed test by DEAF N1NJA, on Flickr. YouTubers on the Max Tech and Created Tech channels (via MacRumors) have run speed tests on the 256GB version of the M2 MacBook Pro and discovered that the SSD's read and write speeds are as much as 50 percent slower than the 256GB SSD in the M1 MacBook Pro. Thread starter Intelligent Start date Sort by reaction score. The use of the M2 chip is the new 13-inch MacBook Pro's biggest change compared to the M1 version Apple launched in 2020, but it's apparently not the only one. Further Reading 13-inch MacBook Pro review: Apple’s M2 is a worthy follow-up to the M1
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