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Samsung 840 Series Pro 256GB 2.5 Inch SATA Solid State Drive

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Details

·         Price: $270

·         Manufacturer site: www.samsung.co.uk

·         Ratings: 9/10

Samsung has made good inroads into the SSD market over the past couple of years, with its highly regarded 830 series of drives followed by the popular 840 product. Its latest drive, the 840 Pro, is its most exciting yet, but it’s also got a hefty weight of expectation across its aluminum shoulders.

Samsung has made good inroads into the SSD market over the past couple of years

Samsung has made good inroads into the SSD market over the past couple of years

The 840 Pro gets off to a good start with its brushed aluminum finish and smart orange logo, and it’s also one of the only drives here to fit into the slimmer 7mm form factor, so it’s able to fit into the smallest of laptops.

It’s also of the most innovative SSDs here when it comes to the hardware on the inside. The 840 Pro is powered by an ARM-based controller called the Samsung MDX, and it has three processing cores. The NAND on the inside is based on MLC technology, like four of the other drives here, but it’s made on a 21nm manufacturing process – efficient by today’s standards.

The specification proved potent in almost every one of our benchmarks. The Samsung’s AS SSD sequential read and write results of 532MB/s and 504MB/s are the best of any drive here, and it’s at the top of the table with its 4KB read speed of 37MB/s. It’s the second-quickest drive on test when it comes to writing 4KB files too, and it only faltered when reading 4KB-64 files, with a poor score of 281MB/s.

If you’re looking for a high-end, then look no further

If you’re looking for a high-end, then look no further

The 840 Pro picked up speed in the CrystalDiskMark tests. It topped our results table in six out of the eight benchmarks, with its sequential read and write scores of 548MB/s and 527MB/s particularly impressive. It only fell behind when writing 4KB and 4KB-32 files but even then, its scores of 137MB/s and 369MB/s are barely behind this test’s slickest SSDs.

The Samsung returned an impressive set of scores in the ATTO Disk Benchmark tests too. Its minimum read and write scores of 71MB/s and 63MB/s are the best here, and it’s the same story when it comes to maximum speeds: the Samsung’s 559MB/s score is on a par with the OCZ Vector, and its top write speed of 536MB/s is 1MB of its nearest rival, the Vector.

Those impressive ATTO results translated to average read and write scores of 447MB/s and 410MB/s. the former is the best here, and the latter is only second to the OCZ’s 426MB/s result.

Samsung 840 Series Pro 256GB 2.5 Inch SATA Solid State Drive

Samsung’s drive includes a generous five-year warranty, and we’ve very little to complain about. If we’re nit-picking, it’s that the slick box doesn’t include a 2.5” to 3.5” bracket, so one will have to be bought separately to use this drive inside a PC.

We’d expect a drive with this sort of speed to break the bank, but the Samsung costs $270, which works out at a reasonable 75p-per-gigebyte. It’s barely any more expensive than some of its rivals this month, then, and it’s the quickest SSD on test in almost all of our tests. If you’re looking for a high-end SSD, then look no further: the Samsung 840 Pro is the drive to buy.

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