4 ms·

I could be wrong but I think SSDs tend to come in actual powers of two, or genuine 500GB

• 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 ago
    It'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).
• Bud 16y ago
  "Actual powers of two" would imply 512 GB.