[NVMe Performance] Which is the best NVMe Driver and MB Connection (M.2 vs. PCIe)

System Performance AHCI/NVMe Performance
41

@snowind
Since it is very unlikely, that another person with the same PC hardware has already done the related test and will read your request, I recommend to try it yourself and to post your result.

42

Swapped cards, same results : (

43

Fernando, I discovered in the cards swap that MSI GT 1030 (PCIe 3.0 x4 device) inserted in PCIe 2.0 x4 slot results on graphic card at 2.5GT/s and NVIDIA GP108 on 5.0GT/s, in front of both with 2.5GT/s if are inserted on PCIe 2.0 x16 slot.

Crucial P3 Plus NVMe is 5.0GT/s on both slots.

This info is taken from HWINFO64.

Can you explain this? Thanks

44

@snowind
No, I cannot explain this, but I am not an expert regarding your problem.

45

Solved. It is due of activity of the graphic card. Like an energy saver system.
If I play any video and open HWINFO64, then all is 5.0GT/s.

Returning to NVMe question, I bought a x16 slot size PCIe NVMe adapter (only x4 transfer) instead of actual x4 slot size adapter inserted on x16 size port (this port only transfer PCIe 2.0 x4). Only to probe another adapter.

EDIT: Both adapters, same speed.