CrystalDiskMark is a useful benchmark to measure theoretical performance levels of hard drives and SSD’s.
The SSD 870 QVO is a shade faster than the previous SSD 860 QVO for both read and writes in CrystalDiskMark. Looking at the two benchmark result screens it appears that the new Samsung MKX controller doesn't have a preference when it comes to the type of data it is being asked to handle.