Built with V-NAND flash memory technology, the Samsung MZ-750250BW Solid State Drive enables you to work and play without experiencing a lag. You can store all your important files with this 250 GB SSD. It delivers read and write speed of up to 540 Mbps and 520 Mbps respectively for quick data transfer and access. Its Magician software utilizes your PC's unused memory and delivers fast performance on RAPID mode.
Built with V-NAND flash memory technology, the Samsung MZ-750250BW Solid State Drive enables you to work and play without experiencing a lag. You can store all your important files with this 250 GB SSD. It delivers read and write speed of up to 540 Mbps and 520 Mbps respectively for quick data transfer and access. Its Magician software utilizes your PC's unused memory and delivers fast performance on RAPID mode.
Built with V-NAND flash memory technology, the Samsung MZ-750250BW Solid State Drive enables you to work and play without experiencing a lag. You can store all your important files with this 250 GB SSD. It delivers read and write speed of up to 540 Mbps and 520 Mbps respectively for quick data transfer and access. Its Magician software utilizes your PC's unused memory and delivers fast performance on RAPID mode.
Built with V-NAND flash memory technology, the Samsung MZ-750250BW Solid State Drive enables you to work and play without experiencing a lag. You can store all your important files with this 250 GB SSD. It delivers read and write speed of up to 540 Mbps and 520 Mbps respectively for quick data transfer and access. Its Magician software utilizes your PC's unused memory and delivers fast performance on RAPID mode.
Last updated at 06/08/2026 06:13:26
Samsung SSD 750 EVO 250GB SSD 2.5" SATA
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Samsung MZ-750250BW 250GB SATA Solid State Drive
Samsung 750 Evo Mz-750250bw 250 Gb 250gb 2.5" Sata Iii Solid State
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originally posted on newegg.com
I bought the Samsung SSD to be used as a test to determine if SSDs are now suitable for use in small business computers that store customer information. I have been a tech for over 40 years, which means that over 99% of everything I see is defective (customers do not call until something has gone wrong), and the memories of the early LCD displays and memory chips still cause me to be very cautious and to not trust any new product. I ran the tests on an MSI AM1m MB with an AMD 5350 2ghz APU and 16gb of ram. Boot Speed: On a Windows 8.1 PC, boot speed slowed from the original 12 seconds post-bios to the SSD speed of 24 seconds post-bios, likely caused by the need to load SSD software. Shut-down times remained reasonably similar. As a comparison, the SSD Windows 8.1 ... MoreI bought the Samsung SSD to be used as a test to determine if SSDs are now suitable for use in small business computers that store customer information. I have been a tech for over 40 years, which means that over 99% of everything I see is defective (customers do not call until something has gone wrong), and the memories of the early LCD displays and memory chips still cause me to be very cautious and to not trust any new product. I ran the tests on an MSI AM1m MB with an AMD 5350 2ghz APU and 16gb of ram. Boot Speed: On a Windows 8.1 PC, boot speed slowed from the original 12 seconds post-bios to the SSD speed of 24 seconds post-bios, likely caused by the need to load SSD software. Shut-down times remained reasonably similar. As a comparison, the SSD Windows 8.1 boot time is similar to Windows XP SP3 loading on the same hardware with a SATA2 HDD. Boot and shut-down speeds are not important, but they do give an idea of what to expect. Program Speed: Prefetch is disabled in the SSD software, so MS office programs load much slower (about 1 to 3 seconds as compared to about half a second on a SATA3 HDD, and as compared to almost instant on an XP SATA2 HDD). Non-prefetched programs like browsers and Libre office are much faster (around 9 seconds on the SSD as compared to 20 seconds or more on a HDD). Generally, I did not have any 'wow' moments for the SSD's speed, but the SSD does make the PC noticeably faster over all. Security: The primary concern is that sensitive customer data must be permanently destroyed when a HDD/SSD fails, and the only way to destroy the data is by destroying the HDD/SSD itself. Regardless of warranty, if a SSD fails the first minute after installation, the SSD must be destroyed. Destroying a $50 1tb HDD is no big deal, but destroying a brand new $180 500g SDD is uncomfortable. My thoughts: The SSD is good for personal computers, and I am tempted to install another Samsung SSD on one of my other PCs. At present, until the prices become competitive to HDDs, I will still not recommend relatively expensive SSDs for my 'thrifty' business customers who must store sensitive customer information.
originally posted on ebay.com
Bought this to replace a failing hard drive. Worked like a charm. The included software migrated all the data from the old hard drive and a little repair from the original windows DVD and all was working great. I recommend this to anyone who has an aging laptop. Now if I can just get one for NvMe drives I'll be doing great.
originally posted on ebay.com
Think I got a bit caught out on this. I know Samsung is a great name and SSD is exciting rejuvenation for any PC, after I found the EVO drive only lasts half the life of the PRO version I felt I had much overpaid on the going rate for these drives when they are only rated to last five years. The PRO version of the same thing is ten years but not twice the price. Looking st it the other way round the EVO is a LOT more than half the price of the PRO version. I guess there's nothing wrong with it, no. It's not that. It's just five years disappears fast and my money goes with it. Be careful how you use SSD. Their lifetime is a bit like mileage on a car, except that when they get to the end of that stated lifetime (5 years for the SAMSUNG EVO SSD) your data is no longer ... MoreThink I got a bit caught out on this. I know Samsung is a great name and SSD is exciting rejuvenation for any PC, after I found the EVO drive only lasts half the life of the PRO version I felt I had much overpaid on the going rate for these drives when they are only rated to last five years. The PRO version of the same thing is ten years but not twice the price. Looking st it the other way round the EVO is a LOT more than half the price of the PRO version. I guess there's nothing wrong with it, no. It's not that. It's just five years disappears fast and my money goes with it. Be careful how you use SSD. Their lifetime is a bit like mileage on a car, except that when they get to the end of that stated lifetime (5 years for the SAMSUNG EVO SSD) your data is no longer guaranteed to remain. Unlike a car or a traditional hard disk, which you can continue to use even beyond the manufacturer warranty, the warranty on the EVO SSD is just troubling to read that when it reaches that lifetime it does not accept any more data writing. This is like saying your car will no longer go into gear after the warranty has expired but you can still start the engine, use the heater, radio and music system but you will need a new car if you want to go anywhere. Technically it's still a car but for all practical purposes ceases to be one. If you buy a drive like the EVO my recommendation is NOT to use it for constantly writing fresh data like backups for example. Normal use is OK. Just set yourself a reminder in your phone to let you know when the time-up is getting near! I do believe SAMSUNG should make this limitation on the EVO SSD clear to consumers so they can make an informed choice. I'm not convinced that consumers are aware of this limitation and therefore I do not believe they buy this completely informed of the lifetime limitation in the EVO SSD.. I photographed the back of the box so you can read what's printed and notice there's no mention of the limited life or what happens when that time is reached. All you get is the positive stuff including five-year warranty.
| Performance | |
| Mean time between failures (MTBF) | 1500000 h |
| TRIM support | Y |
| Security algorithms | 256-bit AES |
| Random write (4KB) | 88000 IOPS |
Samsung SSD 750 EVO 250GB SSD 2.5" SATA
Free delivery
Samsung MZ-750250BW 250GB SATA Solid State Drive
Samsung 750 Evo Mz-750250bw 250 Gb 250gb 2.5" Sata Iii Solid State
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
I bought the Samsung SSD to be used as a test to determine if SSDs are now suitable for use in small business computers that store customer information. I have been a tech for over 40 years, which means that over 99% of everything I see is defective (customers do not call until something has gone wrong), and the memories of the early LCD displays and memory chips still cause me to be very cautious and to not trust any new product. I ran the tests on an MSI AM1m MB with an AMD 5350 2ghz APU and 16gb of ram. Boot Speed: On a Windows 8.1 PC, boot speed slowed from the original 12 seconds post-bios to the SSD speed of 24 seconds post-bios, likely caused by the need to load SSD software. Shut-down times remained reasonably similar. As a comparison, the SSD Windows 8.1 ... MoreI bought the Samsung SSD to be used as a test to determine if SSDs are now suitable for use in small business computers that store customer information. I have been a tech for over 40 years, which means that over 99% of everything I see is defective (customers do not call until something has gone wrong), and the memories of the early LCD displays and memory chips still cause me to be very cautious and to not trust any new product. I ran the tests on an MSI AM1m MB with an AMD 5350 2ghz APU and 16gb of ram. Boot Speed: On a Windows 8.1 PC, boot speed slowed from the original 12 seconds post-bios to the SSD speed of 24 seconds post-bios, likely caused by the need to load SSD software. Shut-down times remained reasonably similar. As a comparison, the SSD Windows 8.1 boot time is similar to Windows XP SP3 loading on the same hardware with a SATA2 HDD. Boot and shut-down speeds are not important, but they do give an idea of what to expect. Program Speed: Prefetch is disabled in the SSD software, so MS office programs load much slower (about 1 to 3 seconds as compared to about half a second on a SATA3 HDD, and as compared to almost instant on an XP SATA2 HDD). Non-prefetched programs like browsers and Libre office are much faster (around 9 seconds on the SSD as compared to 20 seconds or more on a HDD). Generally, I did not have any 'wow' moments for the SSD's speed, but the SSD does make the PC noticeably faster over all. Security: The primary concern is that sensitive customer data must be permanently destroyed when a HDD/SSD fails, and the only way to destroy the data is by destroying the HDD/SSD itself. Regardless of warranty, if a SSD fails the first minute after installation, the SSD must be destroyed. Destroying a $50 1tb HDD is no big deal, but destroying a brand new $180 500g SDD is uncomfortable. My thoughts: The SSD is good for personal computers, and I am tempted to install another Samsung SSD on one of my other PCs. At present, until the prices become competitive to HDDs, I will still not recommend relatively expensive SSDs for my 'thrifty' business customers who must store sensitive customer information.
Bought this to replace a failing hard drive. Worked like a charm. The included software migrated all the data from the old hard drive and a little repair from the original windows DVD and all was working great. I recommend this to anyone who has an aging laptop. Now if I can just get one for NvMe drives I'll be doing great.
Think I got a bit caught out on this. I know Samsung is a great name and SSD is exciting rejuvenation for any PC, after I found the EVO drive only lasts half the life of the PRO version I felt I had much overpaid on the going rate for these drives when they are only rated to last five years. The PRO version of the same thing is ten years but not twice the price. Looking st it the other way round the EVO is a LOT more than half the price of the PRO version. I guess there's nothing wrong with it, no. It's not that. It's just five years disappears fast and my money goes with it. Be careful how you use SSD. Their lifetime is a bit like mileage on a car, except that when they get to the end of that stated lifetime (5 years for the SAMSUNG EVO SSD) your data is no longer ... MoreThink I got a bit caught out on this. I know Samsung is a great name and SSD is exciting rejuvenation for any PC, after I found the EVO drive only lasts half the life of the PRO version I felt I had much overpaid on the going rate for these drives when they are only rated to last five years. The PRO version of the same thing is ten years but not twice the price. Looking st it the other way round the EVO is a LOT more than half the price of the PRO version. I guess there's nothing wrong with it, no. It's not that. It's just five years disappears fast and my money goes with it. Be careful how you use SSD. Their lifetime is a bit like mileage on a car, except that when they get to the end of that stated lifetime (5 years for the SAMSUNG EVO SSD) your data is no longer guaranteed to remain. Unlike a car or a traditional hard disk, which you can continue to use even beyond the manufacturer warranty, the warranty on the EVO SSD is just troubling to read that when it reaches that lifetime it does not accept any more data writing. This is like saying your car will no longer go into gear after the warranty has expired but you can still start the engine, use the heater, radio and music system but you will need a new car if you want to go anywhere. Technically it's still a car but for all practical purposes ceases to be one. If you buy a drive like the EVO my recommendation is NOT to use it for constantly writing fresh data like backups for example. Normal use is OK. Just set yourself a reminder in your phone to let you know when the time-up is getting near! I do believe SAMSUNG should make this limitation on the EVO SSD clear to consumers so they can make an informed choice. I'm not convinced that consumers are aware of this limitation and therefore I do not believe they buy this completely informed of the lifetime limitation in the EVO SSD.. I photographed the back of the box so you can read what's printed and notice there's no mention of the limited life or what happens when that time is reached. All you get is the positive stuff including five-year warranty.
Installed this for the OS in a Win 7 machine (along with the 250 GB version for a photo processing scratch disk). Installation was simple, quick and flawless, and ordering from B&H was a pleasure as always. The SSD transforms the machine during the boot process and when opening any programs or files it contains.For anyone interested in the installation, I started by downloading the Samsung cloning software from their website and installing it on the existing OS hard drive (software provided on CDs often not the latest version). Turned off machine, disconnected all other drives (my internal data hard disks) and rebooted; connected the 500 GB SSD externally; then used the Samsung software to clone the OS hard disk to the SSD. The software formats the SSD during the ... MoreInstalled this for the OS in a Win 7 machine (along with the 250 GB version for a photo processing scratch disk). Installation was simple, quick and flawless, and ordering from B&H was a pleasure as always. The SSD transforms the machine during the boot process and when opening any programs or files it contains.For anyone interested in the installation, I started by downloading the Samsung cloning software from their website and installing it on the existing OS hard drive (software provided on CDs often not the latest version). Turned off machine, disconnected all other drives (my internal data hard disks) and rebooted; connected the 500 GB SSD externally; then used the Samsung software to clone the OS hard disk to the SSD. The software formats the SSD during the cloning, which completed in about 30 minutes for the 200 GBs on my drive. Turned off machine and mounted both SSDs internally (Icy-Dock dual mounting bracket B&H # ICMB290SPB worked great); removed the old OS hard disk and used its connector and port (both SATA III 6 Gb/s) for the cloned SSD. Booted the machine a few times (what a treat!) and opened several programs to make sure the cloning was fully successful. Turned off machine and plugged the data hard disks back in (also connected and quick formatted the new 250 GB SSD), and everything worked as before - only FAST! Lastly, downloaded and installed the Samsung Magician SSD software and used it to configure and test the performance of the SSDs. Mine are achieving the maximum rated read/write speeds.I always approach replacing an OS drive with some trepidation, but this install was enjoyable. The performance increase will continue to please and is a terrific bang for your buck.
I bought this for to replace a WD 1.5TB black HDD used to hold games. The reason behind moving my game storage from a HDD to an SSD was to decrease game load times. The 2nd reason was 1TB SSD’s are finally hitting a good price point. This review is late in coming I have owned this SSD for 2 years now. I ran CrysalDiskMark to perform the testing. Do to the speed of the drive I was not able to test its potential “real” data transfer speed. (as a note to the speed tests I am not sure why the newer 850 is slower than my older one) Samsung 850 EVO 1TB: Read 403 MB/s, Write 411 MB/s (2017 model firmware EMT03B6Q) For Comparison Samsung 860 Evo 256GB : Read 542 MB/s, Write 509 MB/s (new drive in another computer) Samsung 850 Pro 512GB: Read 553 MB/s, Write 502 MB/s (2014 ... MoreI bought this for to replace a WD 1.5TB black HDD used to hold games. The reason behind moving my game storage from a HDD to an SSD was to decrease game load times. The 2nd reason was 1TB SSD’s are finally hitting a good price point. This review is late in coming I have owned this SSD for 2 years now. I ran CrysalDiskMark to perform the testing. Do to the speed of the drive I was not able to test its potential “real” data transfer speed. (as a note to the speed tests I am not sure why the newer 850 is slower than my older one) Samsung 850 EVO 1TB: Read 403 MB/s, Write 411 MB/s (2017 model firmware EMT03B6Q) For Comparison Samsung 860 Evo 256GB : Read 542 MB/s, Write 509 MB/s (new drive in another computer) Samsung 850 Pro 512GB: Read 553 MB/s, Write 502 MB/s (2014 model firmware EXM04B6Q) Samsung 850 Evo 1TB: Read 555 MB/s, Write 508 MB/s (2014 Model firmware EMT02B6Q) WD Black NVMe 500GB: Read 3414 MB/s, Write 2543 MB/s WD Red 3TB WDEFRX: Read 135 MB/s, Write 128 MB/s Even though the newer drive is “slow” I am still happy with its performance. It is very close to the max speed of a sata III (6gbps) interface. I have the 2 Evo’s for my game libraries and the Pro for my OS. The EVO series in has a shorter expected life than the Pro series (fewer writes) which is why I am using it for my game library. I expect to only install and not uninstall games regularly, while the OS drives tend to do more writes. I am also using a standard HDD the WD Red 3tb for my mass storage like pictures, docs, and music.
My old Toshiba Satellite A205-S5825 boot time is now +4x faster than with my old internal system hard drive. Instead of the CPU waiting for the hard drive, this SSD is now waiting for the CPU. Very easy to clone the operating system, programs & personal data files to this SSD from my hard drive, I merely downloaded & installed the free SSD Data Migration software from the Samsung site, hooked up the $5 USB-to-SATA cable between the laptop and the SSD, executed the Samsung program, and cloned the 100gb of OS, installed programs, & personal files from my old intenal hard drive to the SSD with 3 clicks of my mouse. 1 hour and 30 minutes later (about 18mb/sec transfer rate due to my 5500rpm hard drive), my new 250gb was ready to swap out with my old laptop system drive. ... MoreMy old Toshiba Satellite A205-S5825 boot time is now +4x faster than with my old internal system hard drive. Instead of the CPU waiting for the hard drive, this SSD is now waiting for the CPU. Very easy to clone the operating system, programs & personal data files to this SSD from my hard drive, I merely downloaded & installed the free SSD Data Migration software from the Samsung site, hooked up the $5 USB-to-SATA cable between the laptop and the SSD, executed the Samsung program, and cloned the 100gb of OS, installed programs, & personal files from my old intenal hard drive to the SSD with 3 clicks of my mouse. 1 hour and 30 minutes later (about 18mb/sec transfer rate due to my 5500rpm hard drive), my new 250gb was ready to swap out with my old laptop system drive. 10 minutes to physically swap the drives and power on, and I was up and running without any issues. (My old internal hard drive is now retired as a "just-in-case" back-up in the event my laptop is stolen or destroyed). WIth the best warranty in the industry (5-years), I am not to worried on the longevity of this 850 EVO SSD, but I like to be prepared for any contingency. The 850 EVO SSD is currently the fastest and highest rated SSD in its class, and cost is less than $20 more than the basic bargain basement brands.Additionally, what I'm not going to miss is hearing that ever-present muted ticking of the heads in the old hard drive and the spin-up/down of that hard drive motor depleting the battery at an alarming rate. With this SSD, I also realize over 20% more battery time between recharges! If you want to stretch the lifespan of an older reliable laptop (I hate having to reinstall and replace some ever-more-expensive software in a laptop upgrade to fit the new operating system, when your older laptop is doing just fine, but a bit slow), or optimizing your new laptop, a Samsung 850 EVO drive is an easy "viagra" upgrade for less than $100 (I bought my 250gb for less than $70 with free shipping)! When sizing your SSD, I do, recommend at least doubling the capacity of the old hard drive you are replacing, as you should still have plenty of storage when you re-clone the SSD from the internal drive of your next laptop upgrade, when you finally do make the switch.
I have an older Thinkpad with an mSATA slot under the keyboard; I started off with a Samsung SM841 128GB mSATA card for a boot drive along with a Samsung 860 EVO 500gb storage drive. I wanted a larger and faster boot drive in order to do a dual-boot project with Linux on the same machine (which already has Win10 Pro). I had come across the 250GB 850 EVO cards previously and read some good reviews, so I found this one and gave it a shot. I cloned over the old card to the new one, and the performance increase was noticeable (the laptop already has 16GB of memory). After I loaded the dual-boot and installed Ubuntu, you could tell it slowed down a little. Ubuntu runs great, but Windows is seemingly running like it did with the older card now. I guess that's part of the ... MoreI have an older Thinkpad with an mSATA slot under the keyboard; I started off with a Samsung SM841 128GB mSATA card for a boot drive along with a Samsung 860 EVO 500gb storage drive. I wanted a larger and faster boot drive in order to do a dual-boot project with Linux on the same machine (which already has Win10 Pro). I had come across the 250GB 850 EVO cards previously and read some good reviews, so I found this one and gave it a shot. I cloned over the old card to the new one, and the performance increase was noticeable (the laptop already has 16GB of memory). After I loaded the dual-boot and installed Ubuntu, you could tell it slowed down a little. Ubuntu runs great, but Windows is seemingly running like it did with the older card now. I guess that's part of the price of having two operating systems on the same HDD. This is my first time doing a dual-boot project so I wasn't sure what to expect in terms of performance. Samsung has been my #1 for computer parts for years now; all of my computers use Samsung SSD's for their boot drives. If you have an older machine that's mSATA capable and you're looking to add an mSATA SSD to your computer, you can't go wrong with the 850 EVO products.
After trying the Crucial 1 TB SSD i've been sold on them ever since. Insanely fast compared to platter HD's and even hybrids. My quibble with the Crucial is it is SUPPOSED to be 1 tb capacity but only shows 698 GB capacity! 300 gb lost is not a minor thing...it might have been taken over by the reserve partition or something like that but, this irked me enough to want to try another brand. As always, installation has the possibility to be a headache but, the enclosed DVD that came with the drive, did all the work. I don't think the program cares what brand or type you use as source disk, there is no going to their site and entering some code just so you can download and use your own cloning program for your own disk, no codes to enter and nothing to download. Simple ... MoreAfter trying the Crucial 1 TB SSD i've been sold on them ever since. Insanely fast compared to platter HD's and even hybrids. My quibble with the Crucial is it is SUPPOSED to be 1 tb capacity but only shows 698 GB capacity! 300 gb lost is not a minor thing...it might have been taken over by the reserve partition or something like that but, this irked me enough to want to try another brand. As always, installation has the possibility to be a headache but, the enclosed DVD that came with the drive, did all the work. I don't think the program cares what brand or type you use as source disk, there is no going to their site and entering some code just so you can download and use your own cloning program for your own disk, no codes to enter and nothing to download. Simple install of the cloning program, then you tell it to clone your drive and the program does the rest. It will not shut off your computer automatically as the Crucial drive program does so you have to check the screen for the notice that tells you to shut off your computer now. I cloned using a Crucial solid state drive as source disk, and i timed it at a half hour start to finish. (I'd guess a platter type source drive will take longer but I don't really know). Anyway when it tells you shut off the computer, then restart to boot to your new drive and you are done. No muss, no fuss, easy. And the capacity of this Samsung is well over 900 GB (they say when they make the chips they can't pick exactly how big it will come out, the chips are tested and the ones close to the desired capacity are what go into the drive). Anyway, this solid state drive is well worth it - the speed of these has spoiled me, the same way cable internet spoiled you for modems forevermore after you used it...I don't even want to bother using any platter type drive now since the slower response would drive me mad. When I used a hybrid drive as my main hard drive, boot time was over 2.5 minutes...you know the kind, where you turn on the computer and then go shave or something while it comes on? Now with a solid state drive it's less then 30 seconds, doing a restart takes maybe 40 seconds. Once you go solid state, there's no going back...
500GB does not equal 500GB according to your computer. Allow me to explain: All storage devices are measured in bytes, but it's not the same byte that your OS recognizes - computers can only recognize a base-2 numbering system, whereas we use a base-10 system. The closest value to 1000 that can be reached in base-2 is 1024 (or 2^10), hence 1,024 bytes = 1 kilobyte 1,048,576 bytes (2^10*2^10 or 2^20bytes) = 1 Megabyte 1,073,741,824 bytes ((2^10)^3) or 2^30 bytes) = 1 Gigabyte What we consider 500 GB is actually 5*10^11 bytes, but a computer can only see it as 465.66 GB (5*10^11/2^30) thanks to this numbering system! So technically it's not the drive manufacturers who are ripping you off, it's a 17th Century German mathematician and his obsession with Chinese ... More500GB does not equal 500GB according to your computer. Allow me to explain: All storage devices are measured in bytes, but it's not the same byte that your OS recognizes - computers can only recognize a base-2 numbering system, whereas we use a base-10 system. The closest value to 1000 that can be reached in base-2 is 1024 (or 2^10), hence 1,024 bytes = 1 kilobyte 1,048,576 bytes (2^10*2^10 or 2^20bytes) = 1 Megabyte 1,073,741,824 bytes ((2^10)^3) or 2^30 bytes) = 1 Gigabyte What we consider 500 GB is actually 5*10^11 bytes, but a computer can only see it as 465.66 GB (5*10^11/2^30) thanks to this numbering system! So technically it's not the drive manufacturers who are ripping you off, it's a 17th Century German mathematician and his obsession with Chinese divination that's causing you to lose precious drive capacity. (It's also the industry' fault for standardizing human bytes over computer bytes) Samsung is one of the only manufacturers to design and build all of the components inside their SSDs, giving them a significant cost and development advantage as all aspects of their SSDs can be controlled in house. Only Toshiba and Intel have this top-down control over their SSD production, although they have used components from outside their company for lower-end consumer drives. The 850 EVO is a product of Samsung's industry advantage, being the first consumer SSD that combined the affordable TLC flash structure with vertical NAND (or V-NAND) density. In layman's term, Samsung can not only make cheaper flash memory, but they can cram more capacity in each package of flash memory, reducing the number or flash packages needed for certain capacities and further driving down costs. The 850 EVO comes in both 2TB and 4TB versions thanks to the benefits of vertical scaling in flash capacity increasing both the capacity of each flash die and the density of dies per package. They use the same number of flash packages as the 1TB 850 EVO, but are able to double or quadruple capacity thanks to this increase in number of dies and die capacity per package. This may soon affect prices of future 850 EVOs under 2TB. Right now, the 500GB Samsung 850 EVO uses 4 flash packages, with 8 dies per package, and a total capacity of 128 Gigabit (or 16 Gigabyte) per die. That's 32 dies of 16 Gigabyte each, or 512GB of total capacity. Approximately 12GB is left out for over-provisioning, so that's 500GB of usable storage (or 465GiB of "actual" storage). If Samsung chooses to trickle down these denser NAND packets, the next iteration of the 500GB 850 EVO will only have 2 flash packages with 16 dies per package and 16 GB per die (based on the 2TB EVO) or even a single flash package with 16 dies and 32GB per die (based on the 4TB EVO). Whether that will lead to a significant price drop is yet to be seen, since the denser die packages in the 2TB and 4TB EVOs are between 4 to 6 times the cost of the older EVOs' packages.
The Samsung EVO 850 is capable of providing a huge increase in performance providing your computer meets certain requirements. The computer motherboard must have available a high-speed interface connection known as SATA3. SATA3 has a maximum data transfer rate of 600 megabytes per-second, barely more than the rated 525 megabytes per-second speed of the EVO 850. SATA1 or SATA2 are slower at transferring data than the EVO 850 and therefore will be incapable of providing the maximum performance the drive can deliver. If your computer is more than 6 years old, it may not have a SATA3 port. My 4-year-old DELL XPS 8500 has only 1 SATA3 port, the rest are SATA2. Your computer should also have a relatively fast processor and dual channel memory. So you see, the performance ... MoreThe Samsung EVO 850 is capable of providing a huge increase in performance providing your computer meets certain requirements. The computer motherboard must have available a high-speed interface connection known as SATA3. SATA3 has a maximum data transfer rate of 600 megabytes per-second, barely more than the rated 525 megabytes per-second speed of the EVO 850. SATA1 or SATA2 are slower at transferring data than the EVO 850 and therefore will be incapable of providing the maximum performance the drive can deliver. If your computer is more than 6 years old, it may not have a SATA3 port. My 4-year-old DELL XPS 8500 has only 1 SATA3 port, the rest are SATA2. Your computer should also have a relatively fast processor and dual channel memory. So you see, the performance gain might be disappointing in an old, low-powered computer. In my computer, the performance gain was enormous. However, I took the unusual step of performing a clean install of my operating system (Windows 8.1) directly to the EVO 850. I did this to ensure that nothing that could slow my system down was transferred from the old hard drive the EVO 850 was replacing. This step requires an enormous amount of work, however. It took me more than 8 hours to install Windows 8.1, 360 updates, and the 30 applications I use. One big advantage to this approach was that I was able to keep all my user files (more than 600 gigabytes worth) on the old mechanical hard drive. This was important to me as the EVO 850 has only 500 gigabytes of total storage. I then backed up all my user files to an inexpensive ($50) USB external hard drive. I now have speed and a complete data back-up for security for minimal cost. To give you an idea just how fast the EVO 850 is, boot times for the computer went from a little over 2 minutes to just 30 seconds until the desktop became visible. Much more importantly, the operating system loaded all my programs, completed the many background tasks my applications require, and was ready to get to work in only 15 SECONDS from the time the desktop appeared. With the old, mechanical hard drive, it took 15 MINUTES for the computer to be ready to work. Any application I launch loads in just a few seconds, more that twice as fast as the mechanical hard drive. I am now much more productive with my time spent at the computer. I also have peace of mind knowing that the EVO 850 is far less likely to fail than the mechanical hard drive. I highly recommend the EVO 850.
| Performance | |
| Mean time between failures (MTBF) | 1500000 h |
| TRIM support | Y |
| Security algorithms | 256-bit AES |
| Random write (4KB) | 88000 IOPS |
