Samsung SSD 850 EVO (120GB, 250GB, 500GB & 1TB) Review
by Kristian Vättö on December 8, 2014 10:00 AM ESTPower Consumption
Samsung has always done a great job at power efficiency and the 850 EVO is no exception. In slumber mode the 850 EVO is one of the most efficient drives we have seen and it also explains why Samsung went with the new MGX controller as the 500GB and smaller capacities consume about 30% less power than the 1TB model.
Load power consumption is also exceptional, although once again I should note that the writes are hitting the SLC buffer, which is more power efficient than writing to the TLC array. Right after I stopped writing to the drive I saw the power consumption increase to ~3W while the drive was reading data from SLC and writing it to TLC, but that didn't take longer than 10-20 seconds or so (though it depends on how much you write to the drive). I have some tests prepared for our 2015 SSD suite that will look at power over time more closely, so it will also better account for SLC to MLC/TLC writes.
Facebook
Twitter
RSS
97 Comments
View All Comments
hojnikb - Monday, December 8, 2014 - link
Or 50$ less and get a mx100/ultra IIapoe - Tuesday, December 9, 2014 - link
$10 more than the 250GB 850 Evo and you can get a 480GB Crucial M500 or TWO Sandisk Ultra II's. Even though it's a year and a half old at this point, for most end users the speed difference is negligible but the doubled capacity is not. Like the article says, the pricing (at least the MSRP) seems to be in a weird place...HisDivineOrder - Wednesday, December 10, 2014 - link
Samsung thinks they're Apple.In SSD's.
alacard - Monday, December 8, 2014 - link
thanks for the review. is it my imagination or is the 120gb model missing from the destroyer benchmark?Kristian Vättö - Tuesday, December 9, 2014 - link
I don't usually run the 2013 suite on 120/128GB drives because it's more geared towards large and higher performance drives. Users with such heavy workloads shouldn't be buying small drives anyway for performance and capacity reasons.Memristor - Monday, December 8, 2014 - link
Regarding the price, newegg.com already offers them below the suggested retail price. See here:http://promotions.newegg.com/samsung/14-6480/index...
wallysb01 - Monday, December 8, 2014 - link
Only by $10. That’s not really enough. I got the 480 GB Ultra II for $160 over black Friday, that’s $90 less than this sale on the 500GB 850 EVO. That was maybe an atypically good deal, but even at more regular discounts the Ultra II/MX100 is priced at about $180-$190, maybe $200, which is more like $50-$70 less than this “sale” price 850 EVO.This review is right. Until the price comes down ~$50 per 500GB, I don’t see much reason for people buy the 850 EVO.
fokka - Monday, December 8, 2014 - link
comparing msrp to a black friday deal doesn't make sense.Luscious - Monday, December 8, 2014 - link
Where's the m.2 version?And if Samsung is stubbornly sticking with 2.5 inch drives, why no Sata Express version?
The hardware for both is out there, and has been for some time.
ZeDestructor - Monday, December 8, 2014 - link
It's a SATA drive, so the interface will be SATA and not SATA Express/PCIe. Consequently, an M.2 variant will perform the same, since those variants would also be SATA driven, much like the older mSATA drives - same thing, different form factor, and unnecessary to review seperately.