How To Use CrystalDiskMark | What Do The Numbers Mean?

CrystalDiskMark is the go to software for testing the speed of any storage device. NVMe M.2 SSD, hard drives, external drives, SD cards, thumb drives...if it connects to your PC, you can test it.
You can donate to the developers of CrystalDiskMark here: crystalmark.info/en/software/...
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Thanks :)
0:00 How to Download
1:11 How to Test SSD
2:10 Results Explained
4:30 Refined Explanation of Settings
8:34 Real World and Peak Profiles
10:20 Most Importantly
10:31 Conclusion and recommendation
Music - Cruisin' Along by Chris Doerksen
/ chris-doerksen-1
How To Use CrystalDiskMark | What Do The Numbers Mean?

[@devondvorak9176]

I just want to say you did a great job of the breakdowns, it gave me a lot of info, I also like that you broke up the video and let people know they can quit watching if that's all they are looking for, great video man!

[@zgagacz]

Great video! You spent time and effort to make the info clear and easy to understand, that's appreciated. Well done!

[@MaxNMotion]

Excellent tutorial. Wish all tutorials on YT were this useful and clear at the same time.

[@jeffreymaugenest]

Thank you for putting this together in plain language. Appreciate all the effort you put into making this video.

[@felipevellasco6526]

Thank you friend. You explained every bit of it perfectly. Exactly what I was looking for.

[@neilcarman6970]

this is hands down the funniest tech breakdown video i've seen, thank you

[@georgikukov5129]

Great video, straight to the point, with a little nugget of explanation boiled down to the essentials! Thanks!

[@bananaorangeguy5277]

really enjoy listening to you explaining!

[@satysin630]

A solid breakdown of CrystalDiskMark 👍

[@Mainbusfail]

Dude, just because you shared the analogy of how threads, etc work. Got a Sub and Like. Thank you man.

[@mkaia47]

i went for the shizaku edition, great edition

[@robertweekes5783]

I was really confused by the Crystal Disk Info... didn't realize it was a completely different (simpler) program. lol Very helpful !

[@TurtleSauceGaming]

Yeah! Another cultured man using the cultured version of Cystal Disk

[@shinep_ag]

the developer is pretty based

[@0ffnight]

All info I was looking for was here. Thanks!

[@locant23]

I rolled my eyes at the little faces. and then now I'm laughing my butt off. I've seen your videos pop up a lot so it's time I subscribe. Very informative and to the point videos!

[@amincatallo]

Excellent explanation, i understood many things about the software that weren't clear to me.

[@AlissonAraujoBR]

Thank you so much Nick. English is not my first language but you made this very easy to understand.

[@jonbe9]

Thanks for the detailed explanation...I have the same 500GB NVMe M.2 SN750 SSD and I'm getting 3425 MB/s read speed and 2714 write (peak SEQ1M).

[@Sinodom]

Dude this video is amazing, you're awesome thanks buddy!

[@RazorTeam]

yeah, great videos buddy.. greetings from Philippines.. great review.

[@Ashok_Majhi]

This was a lot of helpful, Thank You

[@controversialrebel5639]

Excellent tutorial, many thanks.

[@dingojo]

Thanks man this helped a lot!

[@diegowolf3509]

Thank you for the explanation video Pinkman

[@eskimo4130]

Excellent video dude. Wonderfully described. If you would like to expand on it you could talk about real world use representation of numbers, and if that's possible. Cheers

[@Symphonixz]

Subbed, Great Tutorial Bro.

[@jthreejk67]

Thanks, Nick. Earned yourself a new sub.

[@supernova-4420]

best explaination ive heard yet! and funny too xD

[@casualmime2792]

Great explanation, thank you!

[@jay6981]

nice explanation saitama! POWER!

[@noyanjaved4447]

great video man....underrated channel

[@taylor22222222]

Liked for the whimsical faces :D Honestly, thanks for the guide! I just picked up a gen 4 nvme upgrade for my Galaxy Flex2 Alpha over the gen 3 currently installed. Just waiting on backups now :D Interesting to see what kind of performance I'll pick up.

[@taylor22222222]

Update on the upgrade: nearly every type of test shows consistent improvements being close to or at advertised read/write speeds. I've noticed things are a lot more snappy, and I've also noticed that GTA 5 w/mods can play happily without the occasional stuttering as before. I went from a Western Digital PCIe 3 512GB NVMe up to a PCIe 4 Samsung 980 Pro.

[@freakguitargod]

Thanks for explaining. Thumbs up

[@Craze_Lifter]

thanks a lot man , subscribed :)

[@edwardcastro6864]

thank you so my new friend,look forward to more videos.

[@DJizLurch]

I appreciate the time and effort that you put into this to VERY detailed tutorial! Definitely good insight and information that I always wanted to know, but never really got around to looking up, but this vid gives me it all! #MorePOOOOOOOOOOWERRRR 😈

[@petrol_prophet]

awesome video, thanks so much!!

[@__________----------__________]

Really helpful, thanks!

[@sany6006]

… aaaand now I can’t unsee the faces. Great video btw. 👍🏼

[@redsubcero]

Nice tutorial, thanks!

[@TravisNewton1]

Measure time is how long should it be measured for. I like 30 seconds for a more realistic load. Interval time is the time between tests. I like to do 60 seconds because it gives the drive and OS some time to settle before going into the next test.

[@shafinimtiazratul9488]

Thanks, helped a lot.

[@theotherfaceof]

Thankyou very good explained

[@albertcanon9185]

I like your sound looks like solid,btw nice setup 👍

[@user-dr8kx4bm8v]

😅

[@aksshaysharma96]

These how to Tutotia is amazing, as there is a dearth of such educatioin content on YT

[@SrRunsis]

Incredible video! Thankss

[@TG-Maverick22]

Thank you so much for this explanation, greatly helped me. 5/5

[@user-kg4sx8hv2i]

Great vid with Great presentation. Thanks for the time & effort put into this. I totally agree with most of the comments here as I've used this b4 but been too lazy to go into any depth of understanding the results. Now I do understand so much better I will check my drives again. Ray D.

[@hridaykhandelwal7220]

Cool vid man

[@satanaz]

great video!

[@JoeMurphysGuitarlessons]

Great video, can this be used to get info on transfer speeds between drives and pc memory cards etc ?

[@jemadv1594]

Great video. Thank you

[@KmaEoN]

GREAT VIDEO

[@AbdullahDarwish]

great explaination

[@Alerak]

Thanks a lot! ❤

[@vmiki888]

Another man of culture.

[@Novok242]

Awesome. Thanks 😇

[@applepine1048]

good video. thx!

[@elfakirabsoluto]

Thank you!

[@kasztanowiec1782]

nice and useful vid

[@rachitsinghvi6592]

amazing vid, i have just brought a new WD SN550 500GB SSD and crystaldiskmark 8's SEQ1M Q8T1's result for my SSD is around 1600 MB/s which is very low compared to 2400 MB/s as advertised by Western Digital, should I return my drive and replace with another one or this normal?

[@leoutriainen]

So am I right in assuming that the thing under IOPS since it's latency, should be as low as possible?

[@user-blabla-47854]

I hoped for more detailed explanation of technical details, like queues and threads.

[@DeanoEssex]

Apart from H2testw what is the best alternative for testing my SSD to see if it really is 2TB? I read that we shouldn't use H2testw on SSD drives.

[@TechIlliterate]

Any test will shorten the life of a solid state drive but it is so miniscule in the grand scheme that it isn't worth worrying about. By the time the thing dies you should have upgraded to some new faster tech many years before.

[@TardlerDesigns]

i ran the same test on my C drive, 1st row 2029/1680, the 2nd row however is 1860/50? is something failing?

[@mohammadalif4949]

I have a few question, does the space of storage affect the test result ? If I choose another storage partition with more space of storage than the other, is it gonna represent the result of my storage device or it just represent the result of that partition ? Anyway, great video !

[@RealKeytones]

I think the only time the space of storage would effect speed is when there isn’t enough room to fit the data. I could be wrong though

[@k2000pvc]

I think you need to create part 2 of this video to explain where these theorical concepts are put into perspective with real world usage like Operating system operation, gaming, winrar, etc.

[@coffebeans631]

How to unsee the faces now? Great vid mate!

[@Abyss-Will]

Does this program automatically delete the data it used to write the disk? or do you have to delete it manually after ??? I was playing Ratchet and Clank and saw that sometimes there was a short loading time like 2 or 3 seconds while jumping dimensions and other gameplay videos were super fluid and the dimension change was super fast, I have a very nice pc but I've heard they couldn't make this game for the ps4 because the game couldn't work right with the slow read speeds of magnetic disks so I went to check out my disks' speeds and it turns out my nvme has a read time 6 and a half times higher than the sata ssd I installed the game in. Also my newer ssd that's only a month old is giving me some weird numbers, during the first test it scored 12 & 11 mb/s on the first two write speeds, second test it scored 518 & 10 mb/s and third test finally a good result at 518 & 479. What could be the cause of such slow write speeds on two of my three tests??? it's not the C: drive where windows is installed so there shouldn't be other applications running on it, I'm using it just for storage. could something be wrong with it ??? or the slow results could be because my processor was busy with something else? after all the 12100F is not the king of multitasking.

[@fcfdroid]

Okay the whimsical little faces made me laugh 😂

[@Random-yz8gb]

I have wd pc sn 730 and I am getting 2700 read and 500 write which is way lower than advertised what should I do

[@Rsivordog]

Hey, great video - thanks for making it! Question - I have been having trouble downloading games from Steam lately. I keep getting a "download paused, disk write error" message. I downloaded this software and ran the test, and the bottom 2 in the write column came back with zeros. I have a Sandisk Ultra II SSD. I'm thinking this indicates a problem with my disk. What do you think?

[@TechIlliterate]

Definitely sounds like an issue with the disk. Is it your C: drive? Download a disk checking utility or use the command prompt.

[@Rsivordog]

@@TechIlliterate Hey, thank you for the response! It is not my primary drive - it is a drive I added for extra storage for games, music, etc. My OS is on a different drive. I guess my real question is - if those tests come back with zeroes in the bottom right two columns (my settings were at 5/32gb, if that makes sense to you), does that indicate that I likely have a problem? In any case, you have my sub. Thank you for making videos like this, and for being responsive!

[@TechIlliterate]

@@Rsivordog It seems like there is a problem but that doesn't necessarily mean the drive is broken. Could be any number of things. Personally I would start with CHCKDSK in the command prompt, re-plug the SATA cable and check for malware. Thanks!

[@ismailv309]

I didn't know that Jonny Sins has a Tech page, dude is everywhere!

[@aliservan7188]

Any idea how I test a network drive? Specifically a NAS?

[@xxmaster7517]

thanks❤

[@playeromaximo4382]

Can I test a new drive through a USB 3.0 enclosure (like a laptop) and still get accurate readings, or does the new drive need to be hooked up inside (in a desktop)?

[@TechIlliterate]

Yeah you can test via usb. You will be limited by the bandwidth but as long as the devices speed doesn't exceed then it's not an issue.

[@Rationalific]

I was going to say that this video is very helpful, but the one thing it's missing is the method to get cool manga girl images on it...but you even showed that in the video! (By the way, you said that you're learning as well and asked for any constructive input, so I'll just say that GB is "gigabyte", but GiB is "gibibyte", which is binary-based and is a little bit larger than a gigabyte.) Thanks again for the info!

[@matiquielma]

Why could I be having a Q32T16 speed of 7 with an SSD? should I change it? Is a lower value worse or better?

[@rontarrant]

I'm trying to determine if my system drive is nvme or not. The laptop is old and was given to me by a friend and he doesn't remember. I ran CDM twice, once with nvme SSD selected and once without. Results were pretty much the same, about 2 mb/s faster on the Default setting.

[@yumaboy881]

Thanks

[@nerd2544]

man of culture

[@user-xz2kx1xo8x]

Im looking for a program to test the power on hours on my hard drives, any suggestions?

[@mrphraner]

how do i know if i need default or the other option? NVMe

[@CarlKahler]

What is close to the advertised speed my drive is advertised at 7300/6900 and is only 6400/6225 does that seem within the allowed?

[@NeuroPulse]

I would check your system before getting an RMA as I would expect it to be user error. For example some m.2 slots have a SATA mode.

[@tall-handsome7152]

You rock!

[@TechIlliterate]

No you!

[@megabaneen8057]

thanks

[@asyt9996]

Thanks for dumbing it down to me.

[@CmdrTigerKing]

how is health of a drive calculated?

[@jmscdy]

Just did this but all of the Read and Write sections are zeroes, what does this mean?

[@karlclintsman2950]

I don't have the settings tab you do

[@Its_Only_Money]

Thank you! Also, would anyone be able to tell me if Crystal Disk Mark leaves any of the 1GB test files on the C Drive that I would need to delete to get the space back or no?

[@TechIlliterate]

Nope

[@mama2457]

what does it mean if the read of my SEQ1M Q1T1 is half of my SEQ1M Q8T1? Is there something wrong?

[@lcvenusaur2168]

36 write speed when advertized is 450 :( what do i do??

[@RBoop]

Hello, I bought a new laptop and I have doubts that the disk is not new, but used. CrystalDiskinfo shows: Total host reads: 947GB Total host writes: 889GB Power on count: 748 count Power on hours: 50 hours I have installed only Wnidows 11, 140GB for games and some small programs. Is it normal to have so many reads/writes operations?

[@Jakob-W]

hey is it weird that my SSD puts out higher numbers on real world performance over peak? Also its a Sata SSD (Crucial MX500) rated to 500 MB/s but the benchmark says 7019.41 MB/s read

[@TechIlliterate]

That seems way off! Unless you have accidentally found a way to widen the SATA bandwidth.

[@hridaykhandelwal7220]

Pls make highlights or specific parts of your podcast as I cant see the entire 1 hour thing but still wanna support . Tell me if you already do

[@TechIlliterate]

We will be setting up a second channel for clips in the near future :)

[@hridaykhandelwal7220]

@@TechIlliterate cool

[@Altafan21]

The verge reference at the beginning 😭😭

[@gb4939]

Thank you very much for this video. But I don't understand why there is not a software wicho could just translate those numbers to say to the user : "ok your hard drive is fine or not".

[@nightchrome1076]

excuse me, I'm testing my micro sd caard. when beginning testing, no process, stuck in 'create test files'. how long does it take to create test files?

[@TechIlliterate]

I have not seen this issue. How big is the SD card?

[@nightchrome1076]

@@TechIlliterate 1 TB sd card. i use another speed test, gosh 4mb/s write. Also apply to my pen drive which have around 8 GB. Stuck in create

[@carlthehuman5221]

1:30 I'll never unsee the faces now. . .