MacBook Pro (Retina, 13-inch, Early 2015) NVMe M.2 SSD Upgrade Speedtest - YouTube
Vadim Yuryev on Twitter: "Why the SLOW 256GB M2 MacBook Pro SSD speeds MATTER: There's a good chance that the base M2 MacBook Air will also come with a single 256GB NAND
MacBook Pro 14 512 GB with M2 Pro apparently has a 40% slower SSD than its M1 Pro predecessor - NotebookCheck.net News
Benchmarks show that MacBook Pro with M2 has significantly slower SSD data transfer speed than MacBook Pro with M1 - GIGAZINE