Speed loss NOT using m.2 SSD?

[Inquiring2016]

I just bought an ASUS H97M mobo and a Samsung EVO 850 SSD. I realized the mobo is m.2 "ready" but I bought a stand alone SSD that connects to the mobo with a SATA cable.

What speed do I give up using the Samsung EVO 850 SSD with a SATA cable instead of using the SSD m.2 version? The WIN7 OS will be on the SSD.

Any downside to using an m.2 SSD?

Thank you.

 

[rgd1101]

read review
http://www.anandtech.com/show/9023/the-samsung-ssd-850-evo-msata-m2-review
http://www.techspot.com/review/969-samsung-850-evo-m2-msata/page4.html

 

[johnnyb105]

No actually the m.2 ssd is really fast but so is the standard SSD drive and I see you purchased a Sammy so your good to go I know on my system with the ASROCK MB if I use a m.2 drive I give up 2 of the 6 sata ports so that's the only down fall I see in my case.

 

[Kiril_Petkov]

SATA 3 6GB/S , M.2 10 GB/s that is the speed of the interface not the device you will plug on the ports.

 

[geofelt]

Do not be much swayed by vendor synthetic SSD benchmarks.
They are done with apps that push the SSD to it's maximum using queue lengths of 30 or so.
Most desktop users will do one or two things at a time, so they will see queue lengths of one or two.
What really counts is the response times, particularly for small random I/O. That is what the os does mostly.
For that, the response times of current SSD's are remarkably similar. And quick. They will be 50X faster than a hard drive.
In sequential operations, they will be 2x faster than a hard drive, perhaps 3x if you have a sata3 interface.
Larger SSD's are preferable. They have more nand chips that can be accessed in parallel. Sort of an internal raid-0 if you will.
Also, a SSD will slow down as it approaches full. That is because it will have a harder time finding free nand blocks to do an update without a read/write operation.

You will give up nothing.

I gave my Samsung 850 pro to my son and replaced it with a m.2 Samsung 950 pro operating at X4.
Benchmarks showed 4x the sequential speed, but my everyday experience was unchanged.

If there is a downside, it is that installing a M.2 device on the motherboard makes it hard to move.
The M.2 slot is usually located under another component like the video card.