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SSDs have their own ways to shrink the physical capacity. For example the new SandForce chipsets needed 20%(!) of the flash-capacity for their scratch space wh
by moe 16y ago
SSDs have their own ways to shrink the physical capacity.
For example the new SandForce chipsets needed 20%(!) of the flash-capacity for their scratch space when they were initially released. I think they have that down to around 6% now.
However, regardless of the figures, the harddrive vendors have a user-base that was trained for decades that harddrives are supposed to be smaller than advertised. I doubt they will stop taking advantage of that.
- icegreentea 16y agoIt's not just scratch. It's also spare capacity and stuff to deal with level wearing. They also advertise the actual usable space as opposed to the 'max' space. A SSD might actually have 256GB of space, but it'll be advertised as 240GB. They're actually fairly honest. Remember, most of the major SSD manufacturers -aren't- harddrive manufacturers. They're chip and memory manufacturers (which makes sense).