Question Why would Samsung 990 Pro have slower Random Read/Write than Samsung Evo+?

[Grovest]

Purchased 2 new 2 GB hard drives. Both installed in same notebook (Lenovo P16G2 w 13700HX). Swapping between M.0 and M.1 yields the same result, so it is not the slot.

990 Pro

SEQ1M Q8T1 7102 Read / 6903 Write
SEQ128K Q32T1 6948 Read / 6850 Write
RND4K Q32T16 5265 Read / 3597 Write
RND4K Q1T1 73 Read / 186 Write

990 Evo

SEQ1M Q8T1 7029 Read / 6266 Write
SEQ128K Q32T1 6410 Read / 5942 Write
RND4K Q32T16 4143 Read / 4373 Write
RND4K Q1T1 88 Read / 249 Write

I am not sure how quickly the Pro temp throttling kicks in. The Pro Idles at 45C and hits a max of 55C while the Evo idles at 43C and hits a max of 46C.

CrystalMark is set to NVMe SSD. All other settings are left at default.

Sumsung Magician reports both drives have the latest firmware.

Any suggestions? As random are more important than sequential to overall performance for apps run (graphics editing and some gaming), the numbers suggest that I would be better off returning the Pro and going with two Evo. Am I misreading the benchmark results?

 

[helpstar]

update bios of laptop
update irst and chipset driver

 

[Grovest]

update bios of laptop
update irst and chipset driver

All notebook drivers and firmware are completely up to date... I am not sure how laptop firmware would explain slower write speeds for the 990 PRO than the 990 Evo+. I can see if both drives performed equally poorly.

 

[Ralston18]

I always wonder about the + and - accuracy of such measurements....

= = = =

Here is a link comparing 990 Evo and 990 Evo+

https://www.pcguide.com/news/samsun...-so-heres-how-it-compares-to-its-predeccesor/

Then I found the following link:

https://thepcenthusiast.com/samsung-990-evo-plus-vs-990-pro-vs-990-evo-ssd/

From the second link:

"If we were to build two identical desktop PCs—one equipped with the 990 PRO and the other with the 990 EVO Plus—most users wouldn’t be able to tell which system has the PRO and which has the EVO Plus."

However, you are using a laptop......

Also, from the link:

"However, being the fastest doesn’t necessarily make it the best choice for everyone."

My suggestion is to list and prioritize your drive requirements.

Overall, the end "speed" measurements likely being somewhat moot with respect to the bigger picture.