https://www.notebookcheck.net/Apple-MacBook-Pro-15-2018-2-6-...
https://www.notebookcheck.net/Huawei-MateBook-13-i7-8565U-Ge...
Samsung PM981s (and really Samsung SSDs in general) tend to trounce the competition, but IIRC the XPS 13 uses some mediocre SK Hynix SKU.