Samsung SSD 850 Pro (128GB, 256GB & 1TB) Review: Enter the 3D Era
by Kristian Vättö on July 1, 2014 10:00 AM ESTPerformance vs. Transfer Size
ATTO is a useful tool for quickly benchmarking performance across various transfer sizes. You can get the complete data set in Bench. To highlight the performance of each capacity, I decided to divide the ATTO graphs by each capacity, which should also make the graphs a bit more readable.
IO size scaling remain very similar to the 840 Pro and EVO. It is only at the 128GB capacity where the V-NAND provides a substantial advantage and the 850 Pro is almost as fast as the 120GB Intel SSD 525, which is a SandForce based drive, so its high performance is explained by ATTO's use of compressible data.
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Cerb - Tuesday, July 1, 2014 - link
"cheese in in" -> "cheese in it"?Cerb - Tuesday, July 1, 2014 - link
The above was meant to not be a reply to yours. In general, there's isn't much, though, because with SATA, we're still stuck needing striped RAID to improve bandwidth. Assuming they can keep costs in check, the rapid shrinking,m and thus capacity increases over the next few years, will give us something much more useful. That said, it's nice that they caught up in terms of consistency.Donuts123 - Sunday, July 6, 2014 - link
More relevantly, the 150TB warranty figure applies to all capacities. All things being equal, a 128GB drive with 150TB written will have the same amount of flash wear as a 1TB drive with 1200TB written.So in practice the 1TB model will have far higher endurance than 150TB. But its warranty will expire when its flash is only 12.5% worn. Samsung aren't the only manufacturer to have low TBW warranty figures; Micron/Crucial does it as well, with the same TBW figure for all drive capacities.
8steve8 - Tuesday, July 1, 2014 - link
Yawn. Another SATA 2.5" SSD.How does this compare to m.2 PCIe drives like the XP941 and M6e?
Will we see m.2 PCIe NVMe drives before xmas?
Kristian Vättö - Tuesday, July 1, 2014 - link
The 850 Pro is now in the Bench so you can compare the two easily:http://www.anandtech.com/bench/product/1201?vs=125...
8steve8 - Tuesday, July 1, 2014 - link
thanks, the XP941 demolishes this thing, why isn't it in the charts of this review? clearly PCIe m.2 would be on the radar for anyone looking for a high end SSD these days... ?it may not be readily available in the channels, but it is a taste of what is to come... personally I just got a 256GB plextor M6e PCIe m.2 for $220. It's easy to find in the market.
Kristian Vättö - Tuesday, July 1, 2014 - link
I didn't want to put the XP941 in the graphs because the availability and support are relatively limited and it would have broken some of the graphs.zmeul - Tuesday, July 1, 2014 - link
just a quick dumb question:the bandwidth for SATA 3.0 - 6 Gbit/s is 600 MB/s right? so, it's 300MB/s read and 300MB/s write
correct ?
thesavvymage - Tuesday, July 1, 2014 - link
no, its 600MB/s in total in either direction. you can max the 600 read if you arent doing any writes, etc. It isnt 300 max per direction, its 600 max for total data bandwidthzmeul - Tuesday, July 1, 2014 - link
yes, I forgot to mention, duplex (at the same time) 300r+300w