Wednesday, March 07, 2012
Icy News: OCZ Releases 180GB and 360GB Models of Agility 3
Today OCZ added two more capacities to their Agility 3 lineup: 180GB and 360GB. Agility 3 isn't the firstSSD series to feature such SSD capacities, but more often we see 120GB, 240GB, and 480GB SandForce based SSDs. However, making a 180GB or 360GB SSD isn't any more difficult. The SF-2281 controller supports up to eight channels but it can also run in 6-channel mode and that's how you make 180GB and 360GB drives.
Remember that SandForce drives use about 7% for over-provisioning by default plus possibly RAISE as well depending on the SSD. Hence these SSDs have 192GiB and 384GiB of actual NAND in them. 2.5" drives usually have 16 NAND packages but to run in 6-channel mode, you only use 12 packages (i.e. two NAND packages per channel). For the 180GB model, that means twelve 16GiB NAND packages with two 8GiB dies per package. 360GB simply doubles the dies per NAND package so you have twelve 32GiB packages with four dies each...Full news to Anand Tech
張貼者： ICY DOCK