is there any notisable speed increase in raid 0 with two m2 disks

fishburger · Mar 10, 2017

I have installed one samsung 960 evo disk and waiting for one more,both is 500gb,I havent maid up my mind to have one C: and one E: but if there is any greate incrase in speed in rair 0 Iwould choose that.
specs: mb asusz270f
cpu 4.2 kaby lake
gpu asus 1070 rog
drives (2) samsung 960 evo m2
win 10 64bits

MaDDD · Mar 10, 2017

I wouldn't imagine that with something that performs so well to begin with, you'd notice any difference.

geofelt · Mar 10, 2017

Short answer: No.

Raid-0 has been over hyped as a performance enhancer.
Sequential benchmarks do look wonderful, but the real world does not seem to deliver the indicated performance benefits for most
desktop users. The reason is, that sequential benchmarks are coded for maximum overlapped I/O rates.
It depends on reading a stripe of data simultaneously from each raid-0 member, and that is rarely what we do.
The OS does mostly small random reads and writes, so raid-0 is of little use there.
In fact, if your block of data were to be spanned on two drives, random times would be greater.
There are some apps that will benefit. They are characterized by reading large files in a sequential overlapped manner.

Here is a older study using ssd devices in raid-0.
http://www.tomshardware.com/reviews/ssd-raid-benchmark,3485.html
Spoiler... no benefit at all.

fishburger · Mar 10, 2017

geofelt :

Short answer: No.

Raid-0 has been over hyped as a performance enhancer.
Sequential benchmarks do look wonderful, but the real world does not seem to deliver the indicated performance benefits for most
desktop users. The reason is, that sequential benchmarks are coded for maximum overlapped I/O rates.
It depends on reading a stripe of data simultaneously from each raid-0 member, and that is rarely what we do.
The OS does mostly small random reads and writes, so raid-0 is of little use there.
In fact, if your block of data were to be spanned on two drives, random times would be greater.
There are some apps that will benefit. They are characterized by reading large files in a sequential overlapped manner.

Here is a older study using ssd devices in raid-0.
http://www.tomshardware.com/reviews/ssd-raid-benchmark,3485.html
Spoiler... no benefit at all.

fishburger · Mar 10, 2017

thanks for the answers,it was what i thought I will one c and one d,I do play alot but typical 140 fps in BF4 and 120 in BF1,no overclocking of the system.

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