The Samsung SSD 850 EVO mSATA/M.2 Review
by Kristian Vättö on March 31, 2015 10:00 AM ESTATTO - Transfer Size vs Performance
I'm keeping our ATTO test around because it's a tool that can easily be run by anyone and it provides a quick look into performance scaling across multiple transfer sizes. I'm providing the results in a slightly different format because the line graphs didn't work well with multiple drives and creating the graphs was rather painful since the results had to be manually inserted cell be cell as ATTO doesn't provide a 'save as CSV' functionality.
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AS-SSD Incompressible Sequential Performance
I'm also keeping AS-SSD around as it's freeware like ATTO and can be used by our readers to confirm that their drives operate properly. AS-SSD uses incompressible data for all of its transfers, so it's also a valuable tool when testing SandForce based drives that perform worse with incompressible data.
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Peichen - Tuesday, March 31, 2015 - link
Shouldn't mSATA/M.2 intereface drives be a lot faster than SATAIII drives due to the much faster interface? I was kinda expecting 1GB/sec. speed consider there are already drive tested at 1.4 and 2.7GB/sec.MrCommunistGen - Tuesday, March 31, 2015 - link
mSATA is SATA in a different formfactor. M.2 can be either SATA or PCI-E. As stated in the article, this drive comes (only) in the SATA form.foxtrot1_1 - Tuesday, March 31, 2015 - link
The interface is still SATA, even if the connector is M.2. I assume PCIe M.2 drives will be coming later.Murloc - Tuesday, March 31, 2015 - link
in a very short time they introduced a bunch of connectors and interfaces and it's all gotten quite confusing.foxtrot1_1 - Tuesday, March 31, 2015 - link
Don't worry, it's not like there's also three different mainstream USB standards with two different plugs. Oh wait.Well, at least we have one agreed-upon display connection, that makes shopping for monitors and graphics cards easier. Oh wait.
lazarpandar - Tuesday, March 31, 2015 - link
That's the great thing about standards, you've got so many to choose from!yslee - Tuesday, March 31, 2015 - link
xkcd #927 puts it very nicely. :PArtuk - Wednesday, April 1, 2015 - link
Niceblanarahul - Tuesday, March 31, 2015 - link
You need yo put /sarcasm tag so people don't get confused.Callitrax - Tuesday, March 31, 2015 - link
One thing you should probably do in M.2 SSD reviews is include how the drives are keyed, preferably in one of the tables. This is important since the M.2 interface is actually 4 semi compatible "standards" (see http://arstechnica.com/gadgets/2015/02/understandi... As a result not all M.2 SSDs will fit in all M.2 slots. This one appears to be both B and M keyed so I think it should be pretty universal, but as an example the Samsung XP941 is only M keyed and thus will not work in the HP Stream Mini's B keyed SSD slot. (Did whoever came up with M.2 make a crappy standard that will cause lots of customer support calls and RMA's when consumers M.2 drives don't work with their M.2 equipped computers? Yes they did.)