In my trials, the Samsung 840 series worked well with all popular operating systems, including Windows, Linux, and Mac OS X. For better performance it's recommended that you use the latest version of the OSes that support the TRIM command, such as Windows 7 and Mac OS 10.6 or later.
Cost per gigabyte
The biggest selling point of the Samsung 840 series is, well, is pricing. This is the first drive from Samsung, and arguably the first on the market for that matter, that costs well less than $1 per gigabyte at launch. Right now you can get a 250GB bare-bones version of the drive for just $180, making it one of the most affordable SSDs on the market. The price is expected to get even lower soon, just in time for the holiday shopping season. The Samsung 840 series might be the beginning of an era where SSDs' performance more than justifies their cost.
Because the new Samsung 840 series uses TCL flash memory, I didn't expect much from it, but I was wrong. It seems that Samsung has done a good job with the controllers, which enables the new drive to offer performance on par with many other SSDs on the market. The drive, as expected, wasn't the fastest I've seen, but it managed to be fast in some tests. And yes, it was also comparatively slow in other tests.
When used as a secondary drive, the Samsung 840 series had a data writing speed of about 231MBps, right about the average on the chart. This is very good since it's at the top theaffordability chart. When used as the main drive that hosts the operating system, and performed both read and write at the same time, the drive reached a speed of just 103MBps. Note that being the main drive is the most popular use for SSDs.
When used as the main drive, the 840 series helped speed the boot time of the test machine a great deal at just 11 seconds (compared with about a minute when a standard hard drive is used). The shutdown time was also cut down to just about 6 seconds (from around 12 seconds with a hard drive.) These scores were actually on par with those of most SSDs I've reviewed.
The computer's overall performance was also greatly improved when compared with using hard drives. Everything was much faster and most applications loaded instantly. Heavy apps, such as games, also took much less time to get ready. Overall, most novice users won't notice the difference between the Samsung 840 series and other higher-end, more expensive drives.
While I didn't test the drive's power consumption, it appared to use less power than the 830 series and slightly more than the 840 Pro. If you have experiences with all three drives, you'll notice the difference in your laptop's battery life accordingly.
In all, the Samsung 840 series proved to be an excellent entry-level SSD in terms of performance.
(Shorter bars indicate better performance)
(Longer bars indicate better performance)
|As Secondary Drive||As OS Drive|