RST Premium or AHCI for M.2 SSD Disk internal cache

[Gamer33]

Hello,

I was undecided about one thing. I bought a new Samsung 970 Evo Plus 1TB. The disc has 1GB of DRAM internally. But when I install windows with RST Premium selected, the internal cache is disabled by the raid card.

The disk promises 600 k iops for random read (4KB) and 550 k iops for random write (4KB) under normal conditions.But in the performance test I made with samsung magician software in RST Premium mode, the iops value shows 213 k for reading and 163 k for writing.

Also, I cannot install Samsung's specially released nvme driver while in RST mode.  Do you think I should go back to AHCI? Will this have a big impact on performance? 

By the way, I don't have any optane memory and I dont make raid.

[AlHill]

If you do not need raid, you do not need RST.  And, your AHCI driver is fine.  It will have no impact on your performance.

Doc (not an Intel employee or contractor)
[Maybe Windows 12 will be better]

[Andres_Intel]

Hello Gamer33,

Thank you for posting on the Intel communities. I am sorry to hear that you are having performance issues with your drive when using Intel® Rapid Storage Technology (Intel® RST), I will be happy to help you.  

@AlHill thank you for the clarification, that is correct, if you are not creating a RAID, you do not need Intel® Rapid Storage Technology (Intel® RST). 

Let me know if you have further questions.

Regards,  

Andres P. 

Intel Customer Support Technician

[Andres_Intel]

Hello Gamer33,

Were you able to check the previous post?  

Let us know if you still need assistance.   

Best regards,  

Andres P.  

Intel Customer Support Technician

[Andres_Intel]

Hello Gamer33,

We have not heard back from you, so we will close this thread. If you need any additional information, please submit a new question as this thread will no longer be monitored.

Best regards, 

Andres P.  

Intel Customer Support Technician