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This is the first Ive heard of the "slow" SSD and the "fast" SSD. I'm about to purchase a new MBA (not sure yet which size and specs), but how do I know which Im getting or is it a crap shoot?
 
This is the first Ive heard of the "slow" SSD and the "fast" SSD. I'm about to purchase a new MBA (not sure yet which size and specs), but how do I know which Im getting or is it a crap shoot?

There is a long current thread on the forums about this issue - I can't remember exactly, but I think they determined that it was very difficult to get a "fast" one - you actually have to boot the unit and look in the "About this Mac" menu for specific model numbers for the SSD.

The truth is that the speed difference is a bit academic, and really isn't noticeable in actual use, so my opinion is that it's not worth losing any sleep over.
 
There is a long current thread on the forums about this issue - I can't remember exactly, but I think they determined that it was very difficult to get a "fast" one - you actually have to boot the unit and look in the "About this Mac" menu for specific model numbers for the SSD.

The truth is that the speed difference is a bit academic, and really isn't noticeable in actual use, so my opinion is that it's not worth losing any sleep over.

Thanks RD but the sleep loss is a lost cause,lol, with my OCD , all these decisions and information overload has created a tech shopping zombie.
 
lmao this is crazy i just ran repair disk, and onyx. and now im 80 write and 90 read............-______-
 
My main advice would be to stop obsessing about it, but if it remains in the 80-90 range longer term, then by all means take it in to Apple.
 
I think this slow down relates to no trim support in OSX.

Just do a Time Machine backup, secure erase the drive, reload the OS and allow the setup utility to pull your data fro your Time Machine backup. That will bring the disc back to its factory performance.

Please, no secure erase and Time Machine restore. That's the worst thing you can do with an SSD drive. SSD drives are not hard disk drives. What you suggest would get rid of defragmentation, which is not much of a problem anyway, and is no problem at all for SSD drives.

lmao this is crazy i just ran repair disk, and onyx. and now im 80 write and 90 read............-______-

The more you flap around and test it and benchmark it, the slower it gets. For best performance of an SSD drive, just leave it alone. Start "Activity Monitor", Select "Disk Activity", see what happens when you actually _use_ your computer, for example when you start an application. Have a look how many reads and writes operations per second you get, and how many megabyte per second.


My main advice would be to stop obsessing about it...

Best advice ever. And good SSD drives will improve the layout of the data on the disk if they have nothing better to do, so the more you benchmark them without interruption, the more the performance will go down.
 
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