Samsung's 970 EVO has always been the fastest of the low-priced NVMe SSDs, and the company's new 970 EVO Plus, announced Tuesday, further cements its hold on that position. Samsung claims up to a 57 percent increase in performance for the Plus over the older 970 EVO. I didn't see quite that, but sustained writes when the drive was using its SLC cache increased by 10 percent, and jumped by a very welcome 42 percent when writing to the main body of TLC NAND.
Addendum 4/25/2019: Unfortunately, Apple users looking to upgrade the NVMe in their older machines should steer clear of this SSD, as it has so far proven unstable on the Mac. Whether this is Samsung's or Apple's issue was not clear.
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