Samsung 250GB 850 Evo 2.5" SATA III SSD
Model: MZ-75E250B/AM
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Packaging Info
Package Weight | 0.3 lb |
Box Dimensions (LxWxH) | 5.669 x 5.591 x 0.787" |
General Information
Sequential Read Speed | Up to 540 MB/s |
Sequential Write Speed | Up to 520 MB/s |
Memory Speed | Samsung 32 layer 3D 3-bit V-NAND |
RAM | Samsung 512 MB low power DDR3 SDRAM |
Random Read | 4 KB, QD32 Up to 97,000 IOPS 4 KB, QD1 Up to 10,000 IOPS Note performance may vary based on system hardware and configuration |
Random Write | 4 KB, QD32 Up to 88,000 IOPS 4 KB, QD1 Up to 40,000 IOPS Note Performance may vary based on system hardware and configuration |
Controller | Samsung MGX controller |
TRIM Support | Yes (requires OS support) |
RAID Support | Yes (with RAID controller) |
AES Encryption | AES 256-bit Encryption (Class 0), TCG/Opal, MS eDrive IEEE1667 (Encrypted drive) |
Power Consumption | Active Reads: 3.7 W (max) Active Writes: 4.4 W (max) Idle: 0.5 W (max) Note actual power consumption may vary depending on system hardware and configuration |
Voltage | 5V ± 5% Allowable voltage |
Capacity | 250 GB |
Reliability (TBW) | 75 TBW / 40 GB |
Annualized Failure Rate (AFR) | 0.45% |
Uncorrectable Bit Error Rate | 1 sector per 1017 bits read |
Operating Temperature | 32 to 158°F / 0 to 70° C |
Humidity | 5 to 95%, non-condensing |
Form Factor | 2.5" |
Hardware Compatibility | Windows 8 (32 and 64-bit), 7 (32 and 64-bit), Vista, XP, Mac OSX, and Linux |
Software Compatibility | Windows 8 (32 and 64-bit), 7 (32 and 64-bit), Vista (SP1 and above), XP (SP2 and above), Server 2008 (32 and 64-bit), Server 2003 (32 and 64-bit with SP2 and above) |
Data Retention | 1 year power-off once SSD reaches rated write endurance at 104°F / 40°C |
Dimensions | 3.94 x 2.75 x 0.27" / 100.08 x 69.85 x 6.86 mm |
Weight | 0.14 lb / 0.06 kg |
Reliability (MTBF) | 2 million hours |
Interface | SATA 6 Gb/s (compatible with SATA 3 Gb/s & SATA 1.5 Gb/s interface) |
Although 8 months has now passed since we reviewed the Samsung SSD 850 Evo series, not a lot has changed in the SSD industry. With SATA SSDs running out of bandwidth long before the 850 series, there has been little to no room for improvement with the biggest improvements being made to pricing.
The first SSD I used day to day in my main PC was the Intel X25-M and despite being an eye-watering $4.87 per gigabyte, the 80GB model was a bargain at $390 considering the SLC X25-E was selling for almost twice that in a miniscule 64GB capacity.
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Highest capacity consumer SSD available, performance is consistent with and often a tad faster than the 500GB 850 Evo, pricing is fair.
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Fair doesn't mean inexpensive and if you're on a budget, two of Samsung's 1TB SSDs are a tad cheaper than one of the 2TB models.
Performance Summary : The new Samsung SSD 850 EVO 500GB drive we tested performed extremely well throughout our battery of tests. The drive performed well with large sequential transfers and also offered very low access times.
We normally recommend that you buy at least 250GB SSD because it often delivers good performance without the performance penalties come from smaller capacity drives due to lack of parallelism. Also, 250GB is a sweet spot for OS and a few commonly used apps.
There are only a few names in the industry that build exceptional SSDs that are affordable and very reliable these days, Toshiba, Plextor, OCZ, Micron, the latest Corsair SSDs and then there is Samsung.
Faster, significantly increased longevity and at the same time lower production costs. These three seemingly contradicting aspects are what Samsung are said to have succeeded with 3D V-NAND.
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TurboWrite cache accelerates esp. smaller models, Supports Microsoft eDrive (encryption), Very good everyday performance, Five-year warranty
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Loss of performance under extreme load
TRIM Performance: While SSDs offer many benefits, there are some downsides to using flash memory. One of the biggest issues people run into is performance degradation. Over time, an SSD will run out of fresh blocks and will have to write over data the file system has marked as deleted.
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Equipped with 3-bit 3D V-NAND, Available in 120GB, 250GB, 500GB and 1TB capacities, Features RAPID mode and TurboWrite technology, Excellent sequential read and write speeds under most conditions, Good random read performance, Performs equally well with compressible and incompressible data, Good...
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Mediocre random write performance, RAPID mode is Windows only
After we reviewed the 850 Pro 512GB model and heard that Samsung would also send us the 850 EVO 500GB we thought that there would be a sufficient performance gap between those two to "justify" both the different target areas and the difference in price.
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- Build Quality / Endurance (150TBW / 1 Million Hours MTBF), - Excellent Overall Performance, - Features (TurboWrite/RAPID Mode/eDrive Support), - Samsung Magician Software, - 5 Year Warranty, - Available In 1TB
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- Price (For Some)
Throughout testing, the 1TB Samsung 850 EVO has proven to be quite the performer. Utilizing the same controller as the 850 Pro and 840 EVO, we were able to see great speeds in our synthetic tests. Reads and writes both pushing past 500MB/s.
Once again, Samsung delivers a great product, taking the lead in the SSD space with its advanced technology. 3D V-NAND is really a game changer. The 3rd TCL generation offers pretty much everything the consumer would want to see from an SSD, performance, high endurance, encryption, low power...
This product stopped working on me less than a year after purchase. The warranty is five years but reaching a Samsung representative for help, or finding a service request on their website, or even registering this very product on their website is IMPOSSIBLE.
- As of this review I've had this for about 3 weeks. - Can't really comment on the cloning software as I have no used it, but it DOES come with cloning software.
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- Very fast. I have this SSD for my OS installation and my pc boots to the login screen faster than my monitor can turn on.
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- None so far. I have seen no errors or excessive amounts of damaged sectors. It may be too soon to say yet, though.
I bought this Samsung 850 EVO 250GB 2.5" SATA III Internal Solid State Drive to add to my existing Intel SSDSA2CW 160G3ATA which stores all my programs including Windows, and is running out of space.
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Attractive Design, Compact, Quiet
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Difficult To Use
For a first time SSD user, I must say its lightning fast compared to traditional hard drives. The software installed with no problems and transferred all my data to my new drive with ease. (You'll need a special cord if you plan on just transferring all the data from your old HDD to the SSD).
I am glad i purchased this to upgrade my ASUS core i7 laptop. it was a breeze to transfer with the included software and had it back running quicker than ever. You do need a USB to SATA cable to transfer your data. My laptop is now super fast and speeds went from in the low 80's to 10s of thousands!
Great, fast SSD and apart from one issue easy to install. Beware that this does not come with a USB/SATA cable and that putting it in some enclosures for the cloning step will not work.
I love these fast SSD drives! I have purchased and installed five of them and each has worked flawlessly. They all have increased performance speeds dramatically, even in older systems. Included is very good drive data migration software that is easily used.
So easy to install! Works great! Very happy!
- 250GB Storage Capacity
- SATA III 6 Gb/s Interface
- 2.5" Form Factor
- Up to 540 MB/s Sequential Read Speed
- Up to 520 MB/s Sequential Write Speed
- Samsung MGX Controller
- 256-Bit AES Encryption
- TRIM Support
- 3D V-NAND Technology
- TurboWrite Technology
Average Expert Score
Average User Score
- Samsung 250GB 850 Evo 2.5" SATA III SSD
- Software CD
- Limited 5-Year / 75 TBW Manufacturer Warranty