M.2 NVME Drive slower than it should be

[Jakub_NF]

I just got my new Samsung 970 EVO Plus and migrated everything from my old drive (Samsung 850 EVO) but it is unusually slow in benchmarks and I have no idea why that is, I'm thinking that maybe the drivers are not right but I went into device manager and after clicking look for drivers online it told me that I have all the newest ones. Any Ideas?

Benchmark:

https://www.userbenchmark.com/UserRun/16451208

[Origami Cactus]

How is "performing above expectations" unusually slow? All the read and write speeds are as they should be? 2k read and 2.5k write?

 

 

[Husky]

You can try installing the Samsung NVMe driver found at https://www.samsung.com/semiconductor/minisite/ssd/download/tools/ under the Drivers section.

[Princess Luna]

Like @Origami Cactus mentioned Userbenchmark shows it performing within the greatest majority of entries it has for this drive so... how is it under-performing?

 

Try CrystalDiskMark and see if the numbers are within the average of the 970... now if you thought NVMe was going to be some sort of miracle jump from common Sata3 SSDs I'm sorry to be a deal breaker but they are not.

[Jakub_NF]

2 minutes ago, Origami Cactus said:

How is "performing above expectations" unusually slow? All the read and write speeds are as they should be? 2k read and 2.5k write? 

 

 

I know but the drive is advertised at 3500 MB/s read and 3300 MB/s write, my not only has higher writes than reads which is weird but also they're around 1000MB/s below spec

[Origami Cactus]

6 minutes ago, Jakub_NF said:

I know but the drive is advertised at 3500 MB/s read and 3300 MB/s write, my not only has higher writes than reads which is weird but also they're around 1000MB/s below spec

That is probably because you have the OS on the same drive, also the actual write speed is 900mb/s on the 500gb model, 3300mb/s is just the speed of the small cache.

Spoiler

The sequential write performances after Intelligent TurboWrite region are: 400 MB/s(250GB), 900 MB/s(500GB), 1,700 MB/s(1TB)

 

Also:

"Performance measurements based on IOmeter 1.1.0. "

 

So i wouldn't worry about it, your ssd is performing fine.

 

 

[Mira Yurizaki]

4 minutes ago, Jakub_NF said:

I know but the drive is advertised at 3500 MB/s read and 3300 MB/s write, my not only has higher writes than reads which is weird but also they're around 1000MB/s below spec

That might be true in the most ideal of situations, but it also really depends on what the benchmark is doing:

 

 

EDIT: Seems like I found the benchmark that hits those numbers:

 

Note the parameter though: Q32T1, or a queue depth of 32 over one thread.

[Jakub_NF]

7 minutes ago, Princess Cadence said:

Like @Origami Cactus mentioned Userbenchmark shows it performing within the greatest majority of entries it has for this drive so... how is it under-performing?

 

Try CrystalDiskMark and see if the numbers are within the average of the 970... now if you thought NVMe was going to be some sort of miracle jump from common Sata3 SSDs I'm sorry to be a deal breaker but they are not.

I knew that the difference would be pretty much unnoticeable but I was just curious about why it was the way it was and perhaps if there was something wrong with my drivers etc.

Here is the CrystalDiskMark test I did, looks like it's actually as it should be, thanks. http://prntscr.com/nfximt

[Princess Luna]

1 minute ago, Jakub_NF said:

Here is the CrystalDiskMark test I did, looks like it's actually as it should be, thanks. http://prntscr.com/nfximt

Oh yes, now we know for sure it's performing well.

 

Don't stress too much, the full rated speed is usually only achieved when you're moving one single huge file from one way to another, when you start playing with lots of smaller files there's plenty more operations involved which decreases the speed.

 

Glad you could find peace of mind, cheers!