Does my 2018 MacBook Pro 15" 512GB have slow SSD speeds? | MacRumors Forums
The new, cheaper, MacBook Air includes ~35% slower SSD compared to 2018 model - 9to5Mac
Review: Apple's 2019 13-inch MacBook Pro is an excellent, inexpensive workhorse | AppleInsider
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 -