![]() While the drive stumbled in the Program Speed test, with the lowest score of the group, it turned the tables with ISO Speed, easily notching the best score. The WD Blue SN570's scores in the AS-SSD benchmark were a decidedly mixed bag. While the Blue's 4K write score was about average, its 4K read score was second-best. Internal SSD sequential scores, which we think of as raw speed or maximum throughput, are typically not too far off their manufacturer ratings. ![]() In Crystal DiskMark, the SN570's sequential read and write scores of 3,263MBps and 2,823MBps respectively fell a bit short of its rated 3,500MBps and 3,000MBps, but not by much. This trio of tests involves copying large files or folders from one location on the test drive to another. PCMark 10 also provides some more granular measures, derived from the benchmark's background "traces." These assess a drive's speed in launching particular programs such as games and Adobe Photoshop and Premiere, as well as booting Windows 10 and copying large (ISO) and small (JPG) files.įinally, the AS-SSD benchmarking utility initiates a series of file and folder transfers. It's the sanctioned score presented by UL's software at the end of each run. The overall PCMark 10 Storage test, which runs the full storage suite, measures an SSD's readiness for a wide variety of everyday tasks. Crystal DiskMark's sequential speed tests provide a traditional measure of drive throughput, simulating best-case, straight-line transfers of large files. We subjected the WD Blue SN570 to our usual suite of internal solid-state drive benchmarks, comprising Crystal DiskMark 6.0, PCMark 10 Storage, and AS-SSD. The system has 16GB of DDR4 Corsair Dominator RAM clocked to 3,600MHz and employs an Nvidia GeForce RTX 2080 Ti Founders Edition graphics card. We test all of our PCI Express 3.0 and Serial ATA (SATA) SSDs using PC Labs' main storage testbed, which is built on an Asus Prime X299 Deluxe motherboard with an Intel Core i9-10980XE Extreme Edition CPU. Testing the SN570: Solid Scores for a PCIe 3.0 SSD It's slightly cheaper than the Samsung SSD 980. Modestly priced at 11 cents per gigabyte (at current retail rates), the SN570 is competitive with other budget-oriented internal SSDs. (TBW tends to scale 1:1 with capacity, as it does here.) The SN570's warranty is good for five years or until you hit the rated TBW figure in writes, whichever comes first. Unless you plan on doing an unusual amount of writing to disk, you'll probably get your full five years out of the drive. Terabytes written is an estimate, provided by the manufacturer, of how much data can be written to a drive before some cells begin to fail and get taken out of service. (The Lexar NM610 and NM620 are among the few TLC-based drives we've seen with lower durability ratings-250TBW for the 512GB version, and 500TBW for 1TB.) The WD Blue's ratings are closer to those we expect from drives based on less-durable QLC memory. The SN570's durability ratings, as measured in terabytes written (TBW), match those of the SN550 but are considerably lower than what we expect from a TLC-based drive. The 1TB Lexar NM620 is rated at 3,300MBps read and 3,000MBps write. The WD Blue SN570 is also faster than its SN550 predecessor, whose rated speeds for the 1TB version are 2,400MBps read and 1,950MBps write. It matches the ratings of the Editors' Choice-winning Samsung SSD 980. With sequential read and write rated speeds of 3,500MBps and 3,000MBps respectively, the 1TB drive we tested fares well against other PCI Express 3.0 drives. The two we cover most frequently are WD Black-high-performance drives aimed at professionals and gamers, such as the WD Black D50 Game Dock NVMe SSD and WD Black P50 Game Drive SSD-and WD Blue, a line of budget-friendly, consumer-oriented drives such as the SN550 and its SN570 successor reviewed here. Western Digital offers a range of color-coded storage solutions-WD Green products are eco-friendly, WD Red drives are for network-attached storage, and WD Gold products for data-center and enterprise use, for instance. Consider it a solid pick for a terabyte M.2 stick on a budget. It's faster than its predecessor, the WD Blue SN550, and delivered above-average results in most of our benchmark tests, in a few cases even beating the Editors' Choice award-winning Samsung SSD 980. Western Digital's latest budget-priced internal solid-state drive, the WD Blue SN570 (starts at $53.99 for 250GB $109.99 for 1TB as tested), is a solid performer among affordable NVMe SSDs, even though it sticks to the PCI Express 3.0 rather than the newer 4.0 interface.
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