![]() That's a whole lot of data, as power users average closer to 10-20GB per day of writes, and casual users may only do 1-2GB per day or less. That means you could potentially write about 220GB per day, every day, for five years before the NAND gets used up. Samsung's 960 Pro line is rated at 400 TBW (terabytes written) for the 512GB model, over five years. ![]() The Optane 900 SSDs are rated at 10 DWPD, or drive writes per day, for five years. But what about the rest of the claims?Įndurance is the easy and most striking example of the improvements 3D XPoint brings to the table. Those are obviously numbers that won't be achieved on the first version of the drives, especially since the interface is limited to x4 PCIe (about 4GB/s), which NAND SSDs have already come close to saturating. ![]() Could the drives possibly live up to the hype? In 2015 Intel said 3D XPoint (pronounced "cross point") would deliver up to 1000 times the performance, 1000 times the speed, and 10 times the capacity of traditional NAND.
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