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Can someone help figure this out ?

post #1 of 6
Thread Starter 
I have a kingston sv300s 120gb ssd which I banchmarked using crystal mark and hd tune pro. Now hd tune pro gives me a write speed of 235913 KB/S Read 264574 KB/S and crystal gives me Sequential Write : 91.181 MB/s Sequential Read : 175.465 MB/s. Hd tune pro looks like is giving faster results .

and second question I compared the ssd banchmmarks with my seagate 4tb 5900rpm the seagate got better seq writes than ssd and close read speeds. does it make sense ? here are the results

Kingston
Sequential Read : 175.465 MB/s
Sequential Write : 91.181 MB/s
Random Read 512KB : 160.434 MB/s
Random Write 512KB : 91.647 MB/s
Random Read 4KB (QD=1) : 17.470 MB/s [ 4265.2 IOPS]
Random Write 4KB (QD=1) : 50.856 MB/s [ 12416.1 IOPS]
Random Read 4KB (QD=32) : 74.221 MB/s [ 18120.3 IOPS]
Random Write 4KB (QD=32) : 86.997 MB/s [ 21239.5 IOPS]

Seagate 4tb
Sequential Read : 148.988 MB/s
Sequential Write : 137.428 MB/s
Random Read 512KB : 34.710 MB/s
Random Write 512KB : 60.492 MB/s
Random Read 4KB (QD=1) : 0.345 MB/s [ 84.3 IOPS]
Random Write 4KB (QD=1) : 0.827 MB/s [ 201.9 IOPS]
Random Read 4KB (QD=32) : 0.774 MB/s [ 189.0 IOPS]
Random Write 4KB (QD=32) : 0.786 MB/s [ 191.8 IOPS]
post #2 of 6
You sure you have it on the correct sata port? 6gb/s not 3gb/s
 
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post #3 of 6
Thread Starter 
Quote:
Originally Posted by koulaid View Post

You sure you have it on the correct sata port? 6gb/s not 3gb/s
My board Asus p8h61-m le seams to only have sata 3GB/s port
post #4 of 6
If you want to see speeds. You would need the 6gb/s port.
 
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post #5 of 6
Thread Starter 
Quote:
Originally Posted by koulaid View Post

If you want to see speeds. You would need the 6gb/s port.
and do you have a idea why hd tune pro is giving faster results ? hd tune does not mantion seq is there a difference?
post #6 of 6
The answer to your second question is explained in this thread: http://www.overclock.net/t/1457629/psa-about-the-kingston-v300-ssd-probable-foul-play-by-kingston

About your first question, all benchmarks are different in the way they test and the data they use. HDTune is rather different than other tests like Crystal and AS SSD, so comparing them is not valid.

Sequential read and write is only one aspect of a drive's performance, and does not indicate the speed a drive is reading or writing at all the time. Speed depends on the size of the file and the ability of a drive to access it quickly. Sequential refers to large single file (~512K and above) speeds, which are the easiest for any drive to do. Note all the other Random, small file results, a SSD is far faster than any HDD and is the main reason a SSD is faster than a HDD.
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