WD exposes new SanDisk drives: Blue and Green
The Green brand is for secondary storage, being reliable, cool and eco-friendly, whereas Blue ones are built for PC primary storage use. Other WD brand colours include Black for enthusiast products and Red for NAS and SOHO (small office, home office) use.
The Blue and Green SATA SSDs are designed to be used mainly in notebooks, PCs and workstations. The Blue product is optimized for multi-tasking and resource-heavy applications. Still, WD states that the Green SSDs deliver essential-class performance, and are a great option for every-day use.
Technically, this brand is the basic low-cost model: less capacity scaling, slower at random IO and sequential writing than the Blue drives and with five times less endurance; up to 80TB written versus the Blue’s up to 500TB written – more acceptable for a secondary storage.
- Blue SSDs do random read/writes at up to 100,000/80,000IOPS
- Green SSDs do random read/writes at up to 37,000/68,000 IOPS
- Blue SSDs do sequential read/writes at up to 545/525MB/sec
- Green SSDs do sequential read/writes at up to 540/465MB/sec
Both Blue and Green SSDs use the 6Gbit/s SATA interface. They come in 2.5-inch and M.2 form factors. The Blue SSD holds 250GB, 500GB or 1TB of data, using 15nm TLC (3bits/cell) NAND with a faster SLC cache.
The Green SSD is available with 120GB and 240GB capacities and uses the same TLC NAND with an SLC cache. Both Blue and Green drives have an up to 1.75mn hours MTTF rating.
Both SSDs have a three-year limited warranty and come with WD’s Dashboard drive monitoring software.
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