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Judging by its design features, the Samsung 840 EVO is something in between Samsung’s 840 Pro and 840 models - a top-performance SSD with inexpensive TLC NAND flash memory. This description is rather superficial, though. Samsung has put much effort into improving the SSD architecture and endowed the 840 EVO with innovative technologies. The resulting product is quite outstanding. A revised controller with increased clock rate, 19nm flash memory with 128-gigabit cores and TurboWrite technology make the Samsung 840 EVO a high-performance solution which is also available in different capacities, up to 1 terabyte. Even though we tested a 250GB version of the drive, which is not the fastest version available, it outperformed most of the flagship SSDs from other brands. So, rather surprisingly, the Samsung 840 EVO turns out to be second only to the Samsung 840 Pro in terms of speed.

Talking about its downsides, we should realize that the 840 Pro is a consumer-class product. It is not designed for high loads, being based on 3-bit TLC NAND flash with a rather limited service life. Even though Samsung’s TLC NAND flash is quite reliable, making the 840 EVO suitable for desktop computers, an SSD with MLC NAND flash would last longer under the same conditions. That’s why the Samsung 840 EVO comes with a 3-year warranty despite delivering top performance.

We are also disappointed with Samsung’s pricing policy. The 840 EVO is based on inexpensive TLC memory, so it might come at a rather low price. However, this SSD currently costs more than inexpensive products with MLC NAND flash, e.g. Crucial’s M500. So, even though the Samsung 840 EVO is an excellent SSD, you may want to check out other products if you’re looking for the best price/performance ratio.

To help you with your choice, we offer the following summary table with test results of various SSDs. It contains basic hardware information about SSDs we’ve tested so far and allows to quickly determine the general position of a particular model among its competitors in terms of relative performance.

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