Here is now I look at it.

With the current lineup of controller cards out there, there isn’t much you can do to get past the bandwidth cap of 800-850 M/s. You can but be ready to spend some money. You basically need fiber controllers for that. Unless something new comes out.

Access times are all pretty much the same and that does not scale in a Raid so it’s pretty much a non issue.

So pick you speed and price range. Even cheap SSD’s will scale up to the cap if you have enough of them. Write speeds do go up as you add SSD’s also.


However with all that said. Be careful when you make your purchase ! I cannot stress this enough.

Some of the newer SSD’s are not really rated for Raids, but are going after the Laptop market. I have heard some of these brands become unstable in Raids. Even if they say they are rated for Severs, does not mean Raids.

Also

Not all motherboards work well with SSD’s and Raids. Be careful and do some research first. Plan what you want to do.

If you go intel motherboards you should be fine with 1 SATA SSD, but when you go to a Raid setup problems start happening and generally going to a controller card fix’s that.

Do you really need 800-850 M/s bandwidth ? if not use 2 – 4 SSD’s and you will be very happy.
Best way to go is to use several SSD’s in a Raid vs. 1 big SSD as bandwidth will scale up nicely. But in a laptop you can pretty much only use 1.