Samsung 870 EVO SATA SSD review: The speed you need, at sane prices

Samsung’s been at the top of the SSD storage food chain since the day the company entered the market, and the 870 EVO honors that tradition. It’s the fastest SATA SSD we’ve tested, it’s available in up to 4TB of capacity, and it’s exceedingly affordable given its speed. 

Specs and pricing

The 870 EVO is a 2.5-inch, SATA 6Gbps SSD employing Samsung’s own TLC (Triple-Level Cell/3-bit) V-NAND. The company is typically coy as to on the actual controller technology or the number of layers, but it’s likely an in-house Samsung-designed controller with, judging from the capacities, 92 or 96 layers.

The drive will ship in 250GB/$50, 500GB/$80, 1TB/$140, 2TB/$270, and 4TB/$520 flavors. There’s 512MB of primary DRAM cache for every 250GB of capacity, and the drives are rated for 150TBW (TeraBytes that may be Written) or five years of service—whichever comes first. That is, the five-year warranty is invalid once you exceed the TBW rating. Most end users won’t come close to writing that much data, so consider it five years.

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