@vmanuelgm:
AFAIK only the MS in-box AHCI driver supports the AHCI Controller of the Samsung SM951.
By the way - I have moved your request into this better matching thread, because your SM951 SSD uses the AHCI and not the NVMe protocol.

Update of the start post

Changelog:

• Intel NVMe drivers:
  • new: 32/64bit Intel NVMe drivers v4.4.0.1003 WHQL dated 05/16/2019 for Win7-10
  • new: Intel NVMe Drivers Installer Set v4.4.0.1006 WHQL dated 08/30/2019 for Win7-10
    Notes:
    Supported are the NVMe Controllers of the following Intel NVMe SSDs:
    • Pro 7600p/760p/E 6100p Series (DeviceID of the related NVMe Controller: DEV_F1A6)
    • 660p Series (DeviceID of the related NVMe Controller: DEV_F1A8)
    • new: 665p Series (DeviceID of the related NVMe Controller: DEV_FAF0
    • P3700/3600/P3500/P3520/750 Series (DeviceID of the related NVMe Controller: DEV_0953)
    • DC P3520 Series (DeviceID of the related NVMe Controller: DEV_0A53)
    • DC P4500/4600/4501/4601/4608/4510/4610/4511 Series (DeviceID of the related NVMe Controller: DEV_0A54)
    • DC P4600 (DeviceID of the related NVMe Controller: DEV_0A55)
    • Optane 900p/905p Series (DeviceID of the related NVMe Controller: DEV_2700)
    • Optane P4800x Series (DeviceID of the related NVMe Controller: DEV_2701)

  • new: 32/64bit Intel NVMe drivers v4.4.0.1003 mod+signed by me at 11/08/2019
    Notes:
    Additionally supported are the NVMe Controllers of the following NVMe SSDs:
    • 600p Series (DeviceID of the related NVMe Controller: DEV_F1A5)
    • Optane 8000p Series (DeviceIDs of the related NVMe Controllers: DEV_2522 and DEV_A2BA)

@100PIER:
Thanks for your feedback!
I suspect, that Intel forgot to add the setup.exe itself to the "Installer Set".
Possible solution:
1. Run the command

<current path>SetupNVME.exe -extract <target folder>
 

2. Navigate to the target folder and double-click onto the file named NVME_x64.msi

Alternatively you may install the driver manually from within the Device Manager.

@100PIER:
Thanks for your quick feedback!
Another question: Can you compare the performance of the new Intel NVMe driver v4.4.0.1003 with the much older Intel NVMe driver v3.2.0.1002 (latest for non-optane SSDs), which I am still offering within the start post?
If the new NVMe driver should offer the same performance as the old one or even be better regarding this point, I would rather like to remove the old drivers from the start post.

@100PIER:
Thank you very much for having taken the time to do the requested benchmark comparison tests.

@all:
Due to the results of 100PIER's tests I have removed the much older Intel NVMe drivers v3.2.0.1002 dated 10/18/2017 from the start post.

@DarkMist:
Welcome to the Win-RAID Forum!
1. There are no PM981 drivers, but just NVMe drivers, which may support the NVMe Controller of your SSD or not.
2. The generic MS Win10 in-box NVMe driver supports all NVMe Controllers irrespective of the NVMe SSD manufacturer and model.
3. If you want to create a RAID0 array consisting of 2 NVMe SSDs, you have to use an Intel RST driver from v14.8 up, but this requires a mainboard with the appropriate BIOS settings. For details look this video: https://www.youtube.com/watch?v=iKXUbjTszYg
Good luck!
Dieter (alias Fernando)