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Samsung SSD 840 PRO
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- 256GB Samsung 840 PRO Series Solid State Disk
- 2, 5-Zoll SATA 6Gb/s interface
- Lesegeschwindigkeit bis zu 540MB/s - Schreibgeschwindigkeit bis zu 520MB/sec
- Random IOPS bis zu 100.000 (lesen)
- 7mm Formfaktor, ultraslim
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|Preis||Nicht verfügbar||EUR 91,99||EUR 39,99||EUR 97,07|
|Versand||—||KOSTENLOSE Lieferung||KOSTENLOSE Lieferung||KOSTENLOSE Lieferung|
|Verkauft von||—||Goldene Handelsgesellschaft||mediaprofi24||Compumancha Store|
|Festplattengröße||256 GB||250 GB||120 GB||275 GB|
|Speicherkapazität||256 GB||250 GB||120 GB||275 GB|
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256GB Samsung 840 PRO Series 2, 5-Zoll-solid-State-Festplatte mit SATA-6Gb/s-Schnittstelle. Flammende schnelle SSD mit Übertragungsgeschwindigkeiten bis zu 540MB/s (lesen) und 520MB/s (lesen), zusammen mit zufälligen lesen bis zu 100.000 IOPS. 7mm (ultraslim) Formfaktor.
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Die hilfreichsten Kundenrezensionen auf Amazon.com
CrystalDiskMark 3.0.2 x64 (C) 2007-2012 hiyohiyo
Crystal Dew World :
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
Sequential Read : 512.751 MB/s
Sequential Write : 493.293 MB/s
Random Read 512KB : 454.005 MB/s
Random Write 512KB : 468.006 MB/s
Random Read 4KB (QD=1) : 29.789 MB/s [ 7272.7 IOPS]
Random Write 4KB (QD=1) : 55.441 MB/s [ 13535.4 IOPS]
Random Read 4KB (QD=32) : 408.493 MB/s [ 99729.6 IOPS]
Random Write 4KB (QD=32) : 364.990 MB/s [ 89108.9 IOPS]
Test : 1000 MB [C: 49.0% (233.5/476.9 GB)] (x5)
Date : 2013/01/28 15:58:39
OS : Windows 8 Professional [6.2 Build 9200] (x64)
Much better drive than the Intel, moved that drive to my 2nd bay. I'm a power user, running VMware, Linux, Windows, etc., and the SSD really improves performance.
If you are someone that needs a bigger hard drive or your hard drive died and you are contemplating if you should replace it or the whole computer or even if you are thinking of building your own computer, I can tell you with confidence that if you replace your mechanical hard drive with this Solid State Drive, you will be glad you spent a few extra dollars and your PC will be useful for a much longer period of time you thought it would. All this, provided that your operating system is Windows 7 or later or in any case your operating system is not close to the "end of life" date. The fact is that for the typical daily home use a computer that has a mid range processor with a solid state drive, will be faster than a computer that has the latest and greatest processor with a mechanical hard drive. To put it in a different way, if you have a computer with a mechanical hard drive and replace it with an SSD, you will most likely see double the speed or better.
I have been using SSD drives for about 10 years now because that is when the pricing started to make sense and it still does (getting even better). I have mostly been using Samsung hard drives and the one that I currently have in my home PC is an Samsung 840 Pro that I purchased in 2014 and has been working flawlessly. I do application development and have made applications that are being used in production mode by multiple companies and departments so every time I need to upgrade my operating system, I buy a new SSD drive and start from scratch. This way, if something goes wrong, I can just plug in my previous SSD and be back in business until I figure out what I need to do to make things work with the upgrade.
These Samsung drives are very reliable and have used them personally on all my PCs and laptops and even in the field at work with no problems and impressive performance. As a matter of fact, I told my technicians that if a laptop or desktop comes to their workbench for a hard drive replacement and it is not over 3 or 4 years old, they should replace the old hard drive with an SSD. The SSD upgrade breathes new life in those machines and users are amazed at the performance increase when they get their machines back. They are as happy as they would be if they would get a brand new computer.
For personal use, I mostly work on my home office PC and I never shut it off unless I am cleaning it with compressed air once a year or I am on vacation. I recently ordered a new SSD (Samsung 860 EVO 1TB) to replace this one. This one has is now 3 years and 5 months old and has written a total of 16.83TB (this is only data written to the drive) while the drive reports that the "Power-on Hours" are 29040 which would be about 3.3 years of running. The "power on count" is 65 so this drive has only shut down 65 times in 3.5 years for brief periods of time. There are no errors and most importantly, the "wear leveling count" that shows the life remaining is at 94 percent.
In conclusion, if you want your computer's processor to be all it can be, you need to feed it with information as fast as possible and SSD's do that very efficiently. Now, although you will read in the specs that the drive can read at speeds over 500MB per second, in real life when you put an operating system on this drive, you will get much less than that (see attached video). Yet, it is lightning fast compared to a conventional hard drive even when that drive spins at 10000RPM and to get drives that spin that fast, you will come very close or even exceed the price of this SSD.
That has all changed and the future is here. While still a bottleneck, SSDs are miles beyond HDDs. As far as speed, these drives are to HDDs as HDDs are to floppy disks (at least that's what it seems like). Windows boots in 6 seconds flat. Open an application and it's there right then. This is, quite simply, the new biggest upgrade you can make to computer speed.
There are also some great utilities included.. the Samsung Data Migration tool being one of the best. It will allow you to migrate from your current drive to the SSD with just the click of a mouse.. you don't even have to shut Windows down during the migration, just a reboot at the end and you're on the SSD. The Samsung Magician is also a great tool. There are some rather complex settings that need to be made to the OS to get the SSD to run at its optimum and the Magician makes it a snap.. even for novice users. Magician also has a mode called RAPID which sets aside system memory for a disc cache.. which basically doubles the speed of your SSD, pushing the sequential I/Os to over 1000MBps! A word of warning: if you turn on RAPID, you SHOULD have a UPS because if the system crashes before the information in cache is flushed to disc, it is lost forever. Personally, it's a chance I take because the window of opportunity for such a crash is so small.
I personally use my Samsung SSD in my desktop, but it would shine even more in a laptop. Laptop drives are notoriously slow and power hungry while the SSD is fast and only uses a fraction of the power. Migrating would be a bit more difficult unless you had a second drive bay.. but you but an external SATA 3 to USB connector for a very reasonable price.
It should be noted that, as fast as these are, the numbers can be a bit misleading. Sure, they can pull 500MB/s doing sequential reads and writes, but that's not how computers usually work... it's the random I/O that we do the most. Now this drive screams at random I/O because there is no seek time (the time it takes the head on a HDD to get from one place to another), saving a LOT of time and making the drive many times faster, but not to the extent that you get from sequential I/O.. thus the adoption of IOPS (I/Os per second). In some ways it is a more accurate way to measure speed but when sequential I/O is measured in MBps and random I/O is measured in IOPS, you almost get into an apple vs. oranges thing. They do this because the random I/O speed in MBps of a SSD, while faster than an HDD, is not nearly dramatic as the difference in sequential speeds (more in the area of 3-4x faster as compared to up to 10x faster on sequential I/Os). Don't get caught up in this.. this drive is FAST!
Another "drawback" that these drives have (as you may have read in other reviews) is the hard limit on writes to the drive. What this boils down to is that each memory segment on the drive has about 1500 writes and then it's dead. This sounds worse than it is.. the drive is constantly trying to make sure that you don't use segments over until the rest have been used. The bottom line is that by the time this drive starts losing sectors to write limits, you'll want to replace it anyways because technology will have advanced so far.
This technology is only going to advance.. but it is far enough along to jump on the bandwagon. Put this in your computer and you actually won't believe your eyes.. and you WON'T regret it!
WELL worth the money (but even better on sale)!
ADDENDUM: You will probably need a 2 1/2" to 3 1/2" converter. Check your case to see how the drives mount! I have an Antec with slides for the drives and it will ONLY attach to the converter from the bottom. I bought the Silverstone Tek 3.5-Inch to 2 X 2.5-Inch Hard Drive HDD SSD Bay Converter, Silver (SDP08) to use with it because it was one of the few that I could tell for sure accepted bottom mounting. This is strictly case-dependent, so check your case!