The Samsung 950 Pro PCIe SSD Review (256GB and 512GB)
by Billy Tallis on October 22, 2015 10:55 AM ESTATTO - Transfer Size vs Performance
ATTO provides a quick and easy test of performance over a range of block sizes, which makes it a good overview of performance. It illustrates quite clearly how performance plateaus as transfer size increases, with reads bumping up against the limits of SATA but writes being limited by the speed of the flash itself.
AS-SSD Incompressible Sequential Performance
Any drives that perform transparent compression will perform much worse on this test than the Iometer tests. The SandForce controllers that relied heavily on compression are much less popular (having been largely displaced by controllers from Silicon Motion, Marvell, and Phison), but this in still an important metric to keep in the suite. Many real-world sources of bulk data (such as encoded video) are already heavily compressed and cannot benefit from any attempts at further compression.
With a freshly-wiped drive and the short duration of the AS-SSD test, the drives perform much closer to their advertised speeds.
142 Comments
View All Comments
sorten - Friday, October 23, 2015 - link
'elsewhere' is one wordFrozenGiraffe - Thursday, October 22, 2015 - link
And why would these people boot it every day?Rajinder Gill - Friday, October 23, 2015 - link
If speed matters that much, use S3 resume, it is the fastest way back to the desktop. :)Samus - Friday, October 23, 2015 - link
I reboot my PC 3 times a year. I could give two shits in a cup about boot times.5th element - Monday, October 26, 2015 - link
Couldn't. It's couldn't give two shits not could.Beaver M. - Thursday, October 22, 2015 - link
With the beta NVMe driver it takes about 300 ms longer.geniekid - Thursday, October 22, 2015 - link
http://techreport.com/review/29221/samsung-950-pro...Based on that link I would say issues with NVMe boot times are largely firmware issues that are being rectified.
Refuge - Thursday, October 22, 2015 - link
If they updated their baseline every time new tech came out then they would be so busy retesting to have comparable results, that we would never see a new review ever again.AnnonymousCoward - Thursday, October 22, 2015 - link
Thanks geniekid! That review is far more valuable than what we have here on AT. AT said "loading a new level in a video game would be more likely to show noticeable difference from better performance here". More likely, huh. Then you go look at the actual data at techreport and find there's nearly zero difference. When will AT learn to measure an SSD in an actually useful way?StrangerGuy - Thursday, October 22, 2015 - link
Game load times are actually the least sensitive to SSD speeds. Even a 15 year old game like Red Alert 2 with a next to zero RAM footprint certainly doesn't load instantly on a Crucial M550, much less current titles.