Samsung SSD 970 EVO Plus 500GB SSD Benchmarks - NotebookCheck.net Tech
Improve Surface Pro 4 SSD random IO performance by up to 30% on read and 40% on write by using Samsung NVMe drivers. This might work on Surface Book too. : r/Surface
The 128GB Surface Pro 4 models use perhaps the worst NVMe based SSD in production (link is closest model on Samsung's site, but specs line up with benchmarks) : r/Surface