Amazon.com: Customer reviews: Samsung 850 EVO 2TB 2.5-Inch SATA III Internal SSD (MZ-75E2T0B/AM)

Top positive review

2TB at last for my ThinkPad Yoga S1! Working GREAT, fast, especially in Rapid Mode, Runs Cool, Saves Power - Benchmarks, Tips

Reviewed in the United States on August 25, 2015

So glad we finally have 2TB SSD available! I'd built a work around that I've used most of this year utilizing 2x1TB Samsung 840 mSATA SSDs in RAID 0 on a dual mSATA to 2.5" board (both reviewed separately here on Amazon), and it worked well, but, ran hot, and reduced battery life moderately on my Lenovo ThinkPad Yoga S1. And then there was the issue of not being able to manage the SSDs directly in this RAID 0 setup, which meant good but not great performance.

Enter the EVO 850 2TB drive. Turned off my ATA password, then did a direct connected drive clone using Acronis True Image 2015, leaving the current RAID drive in the laptop and connecting the new 2TB Evo via USB3 and a IcyDock USB3 to SATA adapter. Worked great and was up and running. Tested performance without any SSD optimization and then after turning on Rapid Mode via Magician software. Incredible results! While the benchmarks below are synthetic, the real world performance with Rapid Mode turned on is VERY good, and noticeably faster than both the 850 stock and the previous 2x1TB 840 R0 setup. I also used Magician to set my OS, Windows 7 Enterprise 64bit, to optimize reliability of the SSD, so the faster benchmark includes both enabling Rapid Mode and the reliability settings in the OS.

Notes and Recommendations:

*Optimizing SSD for your needs. Definitely use Samsung Magician to both enable Rapid Mode and to optimize your OS settings for the type of SSD performance you want to emphasize. Note, however, that Rapid mode does not yet work with Windows 10 and I've heard mixed results on Windows 8.1. For me, however, rooted here in Win7, Rapid Mode seems to work perfectly, and I feel like I'm getting every drop of performance possible from the drive in my context with the help of Magician. The Crystal DiskMark results posted below support this.
*Drive Cloning. Acronis TrueImage 2015 worked to clone current drive to the 850 Evo via USB3. However, I could NOT restore previous Acronis drive images to the new drive successfully, though this has worked for me in the past. I strongly suspect this an TrueImage 2015/USB3 interaction, nothing to do with the Evo 850, but sharing in case it saves someone some time.
* Secure Erase the old drive. Using Magician, secure erase only works under Windows 7 (not 8.1 or 10) + requires SATA connected drives, at least as of this posting with the latest Magician software. So, I used the method others recommend on the web of deleting the partition on the old drive and creating a new partition, all with the drive connected to a Windows 7 machine. Then, TRIM supposedly re-zero's all the data on the drive when the new partition is created, providing a kind of secure erase. Had no way to test the efficacy of this, but did it anyway as an additional security measure on the old drive. Here's hoping Magician gets updates such that these workarounds are not necessary.

DiskMark results follow, in reverse chronological order:

ThinkPad S1 Yoga

C Drive, 1x2TB Samsung 850 Evo with Rapid Mode turned on and optimized via Magician for reliability
-----------------------------------------------------------------------
CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo
Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read : 2081.885 MB/s
Sequential Write : 1062.522 MB/s
Random Read 512KB : 3233.240 MB/s
Random Write 512KB : 1227.072 MB/s
Random Read 4KB (QD=1) : 327.188 MB/s [ 79879.9 IOPS]
Random Write 4KB (QD=1) : 176.897 MB/s [ 43187.7 IOPS]
Random Read 4KB (QD=32) : 405.226 MB/s [ 98932.0 IOPS]
Random Write 4KB (QD=32) : 236.319 MB/s [ 57694.9 IOPS]

Test : 1000 MB [C: 53.8% (1001.5/1862.7 GB)] (x3)
Date : 2015/08/25 3:04:47
OS : Windows 7 Enterprise Edition SP1 [6.1 Build 7601] (x64)

C Drive, 1x2TB Samsung 850 Evo
-----------------------------------------------------------------------
CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo
Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read : 512.000 MB/s
Sequential Write : 408.695 MB/s
Random Read 512KB : 471.074 MB/s
Random Write 512KB : 369.942 MB/s
Random Read 4KB (QD=1) : 37.702 MB/s [ 9204.6 IOPS]
Random Write 4KB (QD=1) : 87.897 MB/s [ 21459.2 IOPS]
Random Read 4KB (QD=32) : 308.968 MB/s [ 75431.6 IOPS]
Random Write 4KB (QD=32) : 179.177 MB/s [ 43744.3 IOPS]

Test : 1000 MB [C: 54.3% (1012.0/1862.7 GB)] (x3)
Date : 2015/08/21 0:15:49
OS : Windows 7 Enterprise Edition SP1 [6.1 Build 7601] (x64)

C Drive, 2X1TB Samsung EVO 840 in RAID 0 on
-----------------------------------------------------------------------
CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo
Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read : 489.531 MB/s
Sequential Write : 355.169 MB/s
Random Read 512KB : 399.607 MB/s
Random Write 512KB : 331.641 MB/s
Random Read 4KB (QD=1) : 30.740 MB/s [ 7505.0 IOPS]
Random Write 4KB (QD=1) : 87.171 MB/s [ 21282.0 IOPS]
Random Read 4KB (QD=32) : 53.773 MB/s [ 13128.1 IOPS]
Random Write 4KB (QD=32) : 184.967 MB/s [ 45157.9 IOPS]

Test : 1000 MB [C: 38.3% (713.7/1862.7 GB)] (x3)
Date : 2015/04/25 0:44:06
OS : Windows 7 Enterprise Edition SP1 [6.1 Build 7601] (x64)

7 people found this helpful

Top critical review

Critical reviews›

Syzygies

Excruciating "virtual spin up" lag

Reviewed in the United States on February 15, 2016

Simply mounting a volume from this SSD caused painful lags in file operations in OS X El Capitan, across the board for files that did not reside on this volume. The video demonstrates an excruciating delay in a simple test case, opening a small TIFF file that reside on my internal SSD on my new iMac 5K. When no volumes are mounted from this Samsung 850 EVO 2 TB SSD, the TIFF file opens immediately. When I mount a volume from this Samsung SSD, there is an excruciating delay in opening this TIFF file. I reproduced this behavior in multiple enclosures, using both Thunderbolt and USB3. I could not reproduce this behavior with other brands of SSD.

Mac OS X has always had a problem handling a mix of mechanical and solid state external drives; operating system after operating system, it waits for all mounted drives to spin up on most file operations, rather than assuming a default that file operations will access the system volume. The controller on this Samsung SSD is introducing a "virtual" spin up lag on these file operations. As I care about fixing Apple's design spec for volume handling, this Samsung SSD is a researcher's gift, like discovering a lab rat prone to cancer. However, I'm not so happy about having spent $650 on an SSD with such a sloppy controller.

Spending time on the phone with Apple, Samsung, and Other World Computing, it was clear that Samsung support isn't the coldest beer in the fridge. They will honor my warranty, whatever that means (we'll see if the problem goes away), but they could offer no diagnostic help, and they took issue with my using an "internal" drive in an external enclosure. No appreciation of standards compliance, more of a flailing attempt to cast blame elsewhere, and they didn't get my joke when I referred to their stance as a "sodomy" law. Apple in contrast recognized that I knew more than first responder AppleCare, and promoted me to a senior tech who may in fact fix this problem with OS X.

Samsung welcomed my intention to warn people not to buy this "internal" drive for external enclosures. Huh. Be forewarned.

6 people found this helpful

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From the United States

Robbster

2TB at last for my ThinkPad Yoga S1! Working GREAT, fast, especially in Rapid Mode, Runs Cool, Saves Power - Benchmarks, Tips

Reviewed in the United States on August 25, 2015

Verified Purchase

7 people found this helpful

Helpful

Tim Holman

Great SSD, but beware of "gotchas" with MacBook Pro upgrade

Reviewed in the United States on January 2, 2017

Verified Purchase

My wife bought me a 2 TB Samsung 850 EVO SSD for Christmas as an upgrade for my mid-2012 13" MacBook Pro. It is now installed and working well, but it was a struggle to get it working. The struggle had nothing to do with the Samsung SSD, but instead with a defective SATA drive cable in my MBP, and with MacOS Sierra's App Translocation feature.

First, if you own the same model of MBP as mine, order a replacement SATA drive cable and replace it along with the drive. It is a known issue in the mid-2012 13" MacBook Pro for this cable to go bad due to the bottom of the case pressing on it. You'll know you have a bad cable if you cannot format or erase the Samsung SSD when it is installed internally, but you can erase it if it is installed in an external USB enclosure.

If you are upgrading your drive, the new App Translocation security feature on MacOS Sierra will cause both Carbon Copy Cloner and a direct restore via Time Machine restore to fail if you are upgrading to a larger Samsung SSD. Sierra behaves as if the software had been transferred to a "new" computer, and prevents numerous background programs from running or starting up correctly. My ultimate solution was the following:

(1) Create a bootable USB installer for MacOS Sierra using the free Disk Creator utility from MacDaddy with an 8 GB USB flash drive.
(2) Remove your old HD or SSD from your laptop and place it in an external USB enclosure (very cheap, many enclosures available from Amazon), after performing a Time Machine backup.
(3) Install the new SATA cable and the new Samsung SSD in your MBP, insert the USB installer flash drive, and install a fresh copy of MacOS.
(4) When the installer asks if you want to transfer data from another source, attach the USB enclosure containing your old HD / SSD. Once it mounts, you can tell the installer to select the old drive and transfer your applications and user data.

This SSD has given my 4-year-old MBP new life, and should hopefully allow me to go two or three more years before I need to buy a new laptop. Applications now open almost immediately, e.g. Mathematica in 4 seconds, Microsoft Word in 2 seconds, etc. This is a great upgrade for any older MacBook Pro, and I heartily recommend it.

5 people found this helpful

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DFL

Seems to work great for Linux - Update

Reviewed in the United States on August 16, 2016

Verified Purchase

2016-10-04
So far these drives have been great and very fast. We have some large zip files and it cuts through that process. One thing I would like to mention is that the speed of the drive is really going to be relative to the speed and back-end of the computer. The drive may be really fast, but an older computer my have a slower back-end and might throttle the speed a bit. We buy used Dell M6600's, take then apart, modify them, and then run them until they die. So far none of them have died. I will not reveal the mods. However, the drives run very fast and write at 421.5 MB/sec. So far there have been no problems and our developers are addicted to these drives. Will buy more. The expense is offset when you save time in waiting and frustration. Hope this helps.

Ok, I do not work for Samsung. I run a corporation and we do not run ridiculous operating systems like Windows for our offices. We have some modified laptops with 2 hard drives. I decided to try this drive for my Linux based laptop and replaced one of the 1TB hybrid drives, which were already fast. This drive has been spectacular so far. For Linux I formatted the drive for the EXT4 format, copied the files from the old drive, plugged in, and turned it on. This was not a boot drive. The other hybrid drive still does that. Its was really like grab the computer and hold on. Typical write times for the Hybrid drive was 85.6 MB/s. Typical write speeds for the Samsung drive was 421.5 MB/s. Its basically a 5 times speed increase for writing. I never even looked at the CD that comes with the drive. Linux handles drives much better than windows and we run any windows instances on top of Linux anyway. Its more stable. I am probably going to buy more of these drives. Expensive yes, time is money though and I want to get one for one of my engineers. There may be better drives. I am not an expert, but this one made a big difference for me. Enjoy.

One person found this helpful

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Syzygies

Excruciating "virtual spin up" lag

Reviewed in the United States on February 15, 2016

Verified Purchase

The media could not be loaded.

6 people found this helpful

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Howard A.

having 2 TB of SSD space is great. Only time will tell as to its reliability

Reviewed in the United States on August 3, 2015

Verified Purchase

Just purchased and installed this on my Dell laptop. Of course, having 2 TB of SSD space is great. Only time will tell as to its reliability, but I do have a criticism: the Samsung migration software is incredibly easy to use, except it didn't work. I received some sort of generic error message. Since I had no idea what was generating the message, I did not want to take a risk that some important file had been corrupted. So I ended up using third-party software to migrate which ended up taking a substantial amount of time to migrate. The bottom line is that if the software works for you, great, but if not, be prepared to spend a fair amount of time migrating. If you are installing this SSD for a fresh install, then hopefully you will have fewer problems. I do plan to redo my installation sometime from a Windows CD, and I will update my review after I do that. Bottom line, if you need 2 TB SSD this is the only game in town. Since I really needed the storage space, I am glad I got it, but I am not happy that the software that came with it did not work for me at least.

I think an SSD is indispensable for computer, and 2 TB really is something I've wanted for a while. Though the drive costs more than the computer, it will be worth it as long as it proves to be reliable.

One person found this helpful

Helpful

Rich C.

Happiness = Speedy New Boot Drive

Reviewed in the United States on July 22, 2015

Verified Purchase

I bought the 250 GB version of this drive to upgrade my existing system's boot drive. The original drive was 1 TB however it was very loud (it's a server-grade drive).

The drive came with the normal warranty paperwork, installation CD for Samsung Magician and Data Migration as well as a pictograph guide for setting up the drive in both desktops and laptops. Unless you have mounting screws on hand, you will need to purchase some as none were included. This is the same as the SATA and power cables (if you're using a modular power supply); you will need to either use what you have or purchase more.The installation guide is extremely simple and does not cover troubleshooting so beware! I did a fair bit of research to make sure that I had everything I needed. I happened to have mounting screws and extra cables so I was good there.

Another thing to keep in mind is the fact that this is a 2.5 inch drive; unless you have a mounting bracket to fit this form factor into a 3.5 inch bay, you will need to purchase one. If you're using this in laptop, be sure to read your paperwork to see if this drive is best for you and get any/all hardware you may need. If you're not planning on using it as an internal drive, then this is not a problem.

After installation, I booted up and configured the drive as a new volume and installed both Magician and Data Migration. To be fair, I was leery of using the stock migration software as I've read that a fair portion of people using it to transfer their OS were having trouble. I used MiniTool Partition Wizard's OS Migration Wizard (available at www.cnet.com) which was seamless. Keep in mind that this is my two cents; your mileage may vary.

Word of caution: Back up everything. I backed up my system on an external hard drive and copied all important data (pictures, documents, music, etc) again onto a flash drive. I could be paranoid however better safe than sorry.

After rebooting, I started Magician and enabled RAPID mode. Another reboot and presto! While my boot up time isn't all that improved, the entire system is much more responsive and snappy. Programs open quickly and painlessly. When moving through pictures I no longer have to wait for them to load. Opening Adobe Lightroom used to take up to a minute and now only takes about 4 seconds. Likewise opening my iTunes sometimes took almost a minute now opens and is ready in less than a second. My read and write speeds are both near the advertised maximums.

All-in-all, I've very happy with my new drive. Installation was easy and straightforward. I would purchase one of these again in a heartbeat. Below I put two links for a mounting bracket and screws. Remember: YMMV.

SABRENT 2.5 to 3.5 Inches Internal Hard Disk Drive Mounting Kit (BK-HDDH)

StarTech Replacement PC Mounting Screws Long Standoff - 50 Pack SCREW6_32

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Andrew X

Expensive, but jeez it is fast!

Reviewed in the United States on September 1, 2016

Verified Purchase

I was looking to find the most amount of SSD storage that is under $1000, and it seems like Samsung's 850 EVO 2TB and 850 PRO 2TB was the highest capacity ones on PcPartPicker that was under $1000 (btw: if you don't use that site when shopping for PC Parts, you should).

Just for comparison, my previous setup was 2 OCZ Vector 3 120GB running in Raid 0, with a standard 7200RPM 1.5TB Hard Drive. So I replaced all 3 of these drives with a single 2TB SSD.

You would think 2 SSDs in Raid 0 would be faster than 1 SSD, but no, the single 2TB was faster than the Raid 0 in boot up, login, and in almost all practical applications. Now, I did not actually take any measurements, but it definitely is faster based on the fact that the Windows loading circle used to have to spin 5 times, but now it only spins 2 times. Plus, now I don't get that annoying Intel RAID screen before boot and also can install all my games on the SSD!

So why only 4 stars? $620 (that's how much I paid for it) is still too expensive for my taste. I consider $0.25/gb a fair price, and $0.20/gb a great deal. Unfortunately, $0.31/gb is a little more expensive than I would personally like. However, if you can cough up the money, then you won't be disappointed.

2 people found this helpful

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Wing Wong

Great drive for the price. Strong throughput and iops performance. Great capacity for main OS drive.

Reviewed in the United States on January 18, 2016

Verified Purchase

Got this as a replacement boot drive for my iMac 27", which came with an internal 1TB 7200rpm HDD. Using a USB3 adapter, I'm getting 250-270MB/sec for read and write using the BlackMagic test. This is most likely more a reflection on the limitation of the adapter I got than of the drive itself. Will need to test it on a powered USB3 dock I have, which gives better performance later. Same for when I get a TB2 to SATAIII adapter.

Before the 850EVO, it was taking about a minute to boot up the iMac on the HDD. With the SSD, I'm now booting up in half that time. Application startup is also greatly improved. Moving the caching and previews for Lightroom made browsing a catalog gallery's preview images nearly instant thanks to the low latency of the SSD. This is a huge improvement over even the performance I was getting from my ARECA 8050T2 raid array(granted, the array is spinning disks). An array populated with these 2TB SSD would provide a strong mix of throughput and iops.

Giving the drive 5/5 stars because it is exactly what is advertised. At the price point when I got it, it was a good deal for the 2TB version vs the 1TB version. I opted for the 2TB drive vs the 1TB since Mac OSX's HFS+ encounters a serious performance hit once the filesystem gets close to filling up, it's a good idea to have more space than you need, even if it is an SSD.

Will be interesting to see whether the endurance on the drive lives up to expectations.

Will update once I've done an internal swap of this drive with the iMac's internal HDD. Should see better performance at that point, without the USB-SATA conversion.

One person found this helpful

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Tom Walsh

A Very Luxurious Transitional Step

Reviewed in the United States on December 5, 2015

Verified Purchase

Given that a 1Gbps fiber cable into my basement costs $60 a month, the FPS-like chaos of the nonsensical pricing and repricing of cloud storage, and the steady free fall of local storage cost, it's simply indulgent to put this amount of money into any storage device. In this case it's the primary source of a media library along side a PCIe M.2 system disc (which makes this SATA interface look lazy) in an Intel NUC. Every once in a while transcoding video makes me wish for a stack of Xeon cores, but otherwise the system is a tiny little dream come true.

The caution is in the way I started the review; don't consider this expense unless you have at least 1.5TB of data you HAVE to store locally. Buy as little as you need and take as a given that by the time you need more capacity, everything will have fallen in price. The changes in the cost of bandwidth, at least in urban areas, the cost of local and cloud storage, and the real-world bandwidth of 802.11 standards are all inter-related at a consumer level, so keep an eye on the bottleneck in the chain, and don't overspend today.

9 people found this helpful

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IraF

Five Stars

Reviewed in the United States on March 9, 2016

Verified Purchase

I originally had 2 1TB in each laptop and each slave drive was 500GB SSD, I replaced the 2 1TB and made them slaves and now have 2TB as the master in both laptops,
Installation took about 45 minutes and had to bend the tabs to align the screws for the ssd cases and hopefully this should not be done again
1 ASUS G75VW 16 GB 2 TB SSD as master, 1TB SSD as slave
1 ASUS G751JY 32 GB 2 TB SSD as master, 1TB SSD as slave
Approximately 25 to 30 sec's to boot into windows 10 Enterprise Editionx64
I am doing a clean install and not using any acronis backups and installing the same software in each laptop and after every installation I then create a system restore point
Using KeyLemon for picture recognition (Free Edition) and this is faster then the asus facial recognition software and of course there is a backup password in case the keylemon fails
So where am i , have office 2016 (X64) installed on both laptops, Adobe Acrobat DC also installed on both laptops and then of course had to configure outlook 2016 for a few email accounts, along with quicken 2016

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Samsung 850 EVO 2TB 2.5-Inch SATA III Internal SSD (MZ-75E2T0B/AM)

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Samsung 850 EVO 2TB 2.5-Inch SATA III Internal SSD (MZ-75E2T0B/AM)

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