Windows 11 only has 45% of random write speed in Nvme SSD

Anonymous
2021-10-17T03:51:05+00:00

As you see above, the other performance is about the same, but in RND 4K Q32 T16 the speed has dropped significantly. I know that because the two software versions are different and the condition of the computer is different, it is normal for the performance to fluctuate, but this performance also dropped too much, and the performance remained stable low after many tests at different times.

Windows for home | Windows 11 | Performance and system failures

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  1. Anonymous
    2021-12-13T06:10:25+00:00

    i reinstalled win 10 on the addlink s70 nvme drive, crystal mark speeds back over 3500 read and over 3000 write even with 400gb of files on single partition. i haf cloned the win 11 system that was on the 1tb nvme drive to a 256gb sata ssd drive. and speeds were the same. which i suppose because its on different drive from nvme means nothing.

    transfering between some platter hard drives i have seemed quicker as well by 30MBs per sec in win 10.

    i think its to do with how much is on the win 11 system drive. what do other users think?

    also it was my sequential read and write speeds i had issue with, other users seem to have had 4k issues.

    im afraid now to update the win 10 to win 11 in future, if it aint broke dont fix it lol

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  2. Anonymous
    2021-12-12T23:17:27+00:00

    just an update:

    was going to clone win 11 to a 256gb ssd and then install win 10 on main addlink s70 1tb nvme. deleted or moved data so i could fit it on 256gb drive. the drive was 50% full before

    once i was under 256gb the crystaldisk score went back up to 3042MBs but performance test stayed under 900MBs

    im still going to clone and then install win 10 and do some tests on drive 50% full at under 256gb qnd maybe the drive partitioned with and with out extra 256gb of data.

    ive just lost faith in win 11.

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  3. Anonymous
    2021-12-12T21:15:09+00:00

    at least its not a ryzen issue like the cpu speeds issue last month.

    dont get me wrong, but im glad to see an intel user is having the same problem, and its just not me lol but i do hope you get it fixed as well.

    im not intel bashing but:

    my rubbish n4020 cpu laptop, another intel 2520m laptop and two old pcs (intel q6600 and xeon x5670) with win 11 on them via a win 10 installer, are all intel so that was all i had to go on. write and read speeds are ok on them.

    microsoft tried to fix it with their update but still have not solved it.

    as its prob a small number of users they will not bother.

    so as i said back to windows 10

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  4. Anonymous
    2021-12-12T20:44:52+00:00

    ok tudo bem

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  5. Anonymous
    2021-12-12T20:37:09+00:00

    Is it the NVMe device driver or is it something else in Windows 11 (I think it is something else)? For me, whether I use Microsoft's NVMe driver or Samsung's, it is essentially the same result (with very low random write speeds in crystaldiskmark). So the NVMe driver doesn't seem to be the cause.

    And it has nothing to do with AMD vs Intel either. I have an 11th Generation Intel CPU (Intel Core i5 11400 -- Rocket Lake).

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