Ultimately, the performance and operational reliability depend, of course, on the quality of the memory cells used. The problem: The memory modules are produced by various manufacturers in large quantities and used by as many manufacturers of SSDs. If the SSD manufacturers themselves were not specific to the quality of the used memory, it would not be possible for the individual to make a selection regarding the chip quality.
You must pay attention to this when you purchase it.
The warranty period and the indicated MTBF (mean time between failures), ie the average operating time up to a failure, make it possible to assess the extent to which the manufacturer is familiar with the used memory cells and how well the quality control is to be categorized in the factory
Picture gallery
Test: SSD drives
The price as a criterion for the quality
If one of the memory modules fails, then one must assume that the entire module is defective and the data is lost. A complete data backup by image is therefore strongly advisable for the SSD as a system disk.
Full performance with the right port
Finally, the price is a criterion for the quality of the SSD. So there are quite 60-GB SSDs for 50 euros. Our urgent recommendation is, however, to keep your fingers away. The first problem with the cheap offers: The controller is outdated and the interface is not equipped for a modern SATA-III motherboard - that costs a lot of speed. In addition, a certain standardization has only been used in the "more recent" SSD history.
Buying advice: SSD drives
Older models have, for example, a real problem with the 945G chipset from Intel - which however in its time was very frequently installed on mainboards. Current SSD models do not know this incompatibility, and cost maybe 20 or 30 euros more - an investment that is worth even if you do not have a SATA-III port in your PC system. And you can retrofit the fast interface anyway.
The only solution for connecting an SSD to a SATA-III controller that can fully exploit the hard drive performance is currently the integrated SATA III controller in the chipset of the motherboard, whether Intel or AMD, does not matter. Modern SATA-III disks today reach file sizes of approximately two gigabytes of reader data of more than 500 MB per second.
All "devices", whether additional controller chip on the mainboard or plug-in cards connected via PCIe x1 - and most are - are braked at the latest at 250 MByte / s. In practice you can hardly reach more than 200 MB / s with the SATA-III card for 20 euros from the online shop. However, we strongly recommend that you access the SATA-III SSD in any case. So you are well prepared for the next upgrade.
The least problem with the use of SSDs is their robustness. On the contrary, your shock resistance is even a great advantage and is especially appreciated by notebook owners. Nevertheless, you should ensure that the board is securely screwed into the PC housing so that the power cable and the data cable do not come loose. Who does not have a special SSD cage in its housing, does not come around a Einbaurahmen. Unfortunately, not all manufacturers put a piece of sheet metal into the package.
One should think of this when ordering. If you want to upgrade your laptop with an SSD, you should also check the maximum installation height in the laptop before ordering the SSD. Some SSDs are manufactured with an overall height of more than 9.5 mm and may not fit into the laptop. For Ultrabook owners the review is compulsory.
Last but not least the most important criterion for our test and of course for the purchase of an SSD: the speed. During the test in the PC magazine laboratory it turned out that small can also be very fine. So the Plextor M3 Pro with only 128 GB of storage space is not only the most favorable disk in the test, but also in terms of performance absolutely top. Never before has an SSD with us in the test the full score. For sequential reading, it achieves over 500 MByte / s, an absolute peak.
Buying advice: Complete PCs
Tip: Order the SSD mounting frame
Also very impressive is the average read and write access time of less than 0.1 milliseconds. This is achieved by the fewest SSD disks, and this is mainly due to the controller. Plextor uses Marvell's controller and writes its own firmware, which carries the lion's share of the good performance.
We also use the free benchmark AS SSD to determine the sequential transfer rates. Full five-year warranty and a high MTBF value of 1.5 million hours are also very good for the test winner. Also very positive is that Plextor puts a mounting frame, screws and even Acronis True Image into the package. The tool takes over the data backup and also the relocation of the system data from HDD to SSD.
Testieger: Plextor M3 Pro
When evaluating the price / performance, we use the price per Gbyte for SSDs. This has the simple background that SSDs of a series have different capacities, but in most cases they do not differ in terms of transfer performance and access times. So you can also change the size of the conscience within a series to save a couple of Euros or choose the larger version without having to worry about performance.
Download: Table
Table: Data and measured values
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