Currently, I have a 2x500GB RAID 0 system. I’m thinking about an upgrade but I got held up by a few questions. I need at least 100-120GB for my system and apps and I'm looking for a technological upgrade also. I've ended up with 3 choices:

  1. Single 120GB SSD (SATA 6Gb/s drive)
  2. 2x 60GB SSD drives, but I've heard it's not possible
  3. PCIe SSD drive (~120GB)

They all have very similar read/write values and prices but I was wondering if anyone could give some tips on which way to go. I run Windows 7 64-bit and do a lot of multitasking (especially Adobe stuff).

1 Answer 1


Single 120GB SSD (SATA 6Gb/s drive)

I would choose this option, by elimination of the two other options...

2x 60GB SSD drives, but I've heard it's not possible

This certainly is possible in RAID 0 but, at the moment, the TRIM command will not work (although Intel plans to correct this). This will reduce the performance of the SSD over time.

RAID 0 is generally faster than a single drive because of parallelism. But a single, larger SSD will usually have more NAND flash chips, which allows for a similar form of internal parallelism. For this reason, larger capacity SSDs are inherently faster than smaller drives from the same product line - see the table here for an example. RAID 0 also doubles the chance of failure.

PCIe SSD drive (~120GB)

This arrangement should be very fast, but it uses up a PCIe (assuming you meant PCIe) slot and might require special drivers. I'd expect it to be more expensive than a SATA SSD, and TRIM support might not be possible.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.