SATA or M.2 SSD on MSI Tomahawk?

[yankeeDDL]

Hi,

I just got an MSI Tomahawk (B350 chipset for Ryzen CPU) and I realized that there's an M.2 slot on the motherboard.
I have an SSD (Crucial M500) which is a few years old, but I was planning to keep it as a boot disk on one of the SATA lanes.
I was wondering though: would it make sense to get an M.2 SSD instead?
Would it really make a lot of difference?
According to the review of the M500, it has read speed in the order of 500MB/s and write speed around 250MB/s.
The 960 EVO M.2, for example, seems to have much higher write speeds (http://www.tomshardware.com/reviews/samsung-960-evo-nvme-ssd-review,4802-4.html), in the order of 1800MB/s (I'm looking at the 250GB model here).
Seems like a huge difference, but does it really make a difference? Thoughts?

Let me add that an 850 EVO has comparable speeds as the M500 (http://www.anandtech.com/show/9023/the-samsung-ssd-850-evo-msata-m2-review). So is it that the 960 EVO is just a @monster@, while, in general, M.2 and SATA SSD have similar performance?

 

[atljsf]

if you have the money, yes

if not, do it later

the m.2 is better because it uses less space, no sata power cables, no sata data cables

the m.2 should be a bit faster but for some tasks the extra speed is not necesary, the ssd is in the way of being replaced by m.2

 

[Sakkura]

Those speeds are the sequential transfer rates. They are typically not that relevant to regular usage. It's more important how the drive performs with a lot of small transfers, which is commonly measured with the 4K IOPS, as well as the basic latency of the drive.

The Samsung 960 Evo has a huge advantage in sequential transfers, but it's a lot smaller in 4K IOPS and nearly nothing when it comes to latency.

So in regular usage you wouldn't really notice much of a difference. The PC might boot half a second faster, games might launch half a second faster, stuff like that.

 

[GskillerX99]

it depends on the SSD you will be buying. NVMe M.2 SSDs can have really fast speeds compared to SATA but non NVMe M.2 SSDs will show negligible difference in performance.

 

[yankeeDDL]

Thanks everyone. I think I'll stick with the M500 for the time being.
Maybe in a couple of years the M.2 will be ... more noticeably faster and I'll switch.
I appreciate the time you took to help.