What is the difference between M.2 modules – see here https://www.electronicdesign.com/technologies/memory/article/21801513/whats-the-difference-between-m2-modules
How to distinguish the differences between M.2 cards – https://www.dell.com/support/article/en-us/sln301626/how-to-distinguish-the-differences-between-m-2-cards?lang=en
Once you determine the proper SSD card, check out the benchmarks at https://ssd.userbenchmark.com/
