Can we say that this is a bit ... sad news?
I totally agree.

Can we say that this is a bit ... sad news?
I totally agree.
could have shown some respect and put a relatively fast SSD in the new Imac. Instead they slap on a hefty price tag on a mediocre at best SSD.
![]()
I actually made a whole thread about this.
You guys aren't paying that much more for the SSD drive, Sata III or Sata II 256SSD drives are no cheaper than $400. By the time you buy the equipment you need to tear the computer apart and the risk involved with doing so, I think $500 is reasonable.
The RAM on the other hand is insanely priced.
I want his xbench score ran on his imac for a vertex 3. he says he has a sata 3 ssd in a 2011 imac with a sata 3 connection.
Now, I am really happy about all the effort I put into adding a Vertex3 to my iMac!! To my opinion Apple should really have added SATA3 SSD`s to the new iMac. The speed difference is huge to my opinion.
I personally am very happy with the speed of the Apple SSD. I have a OWC Mercury Extreme 6gps 240Gb drive in my Mac Book Pro and I cannot tell the difference in every day usage between my new imac 2.8 i7 21.5. Everyone gets caught in all the hype.
300Mps vs 58Mps, would you ever use 300Mps? Really for every day tasks that you use your computer for 99 percent of the time? The percentage is for the random 4k blocks which is the most usefull function of measuring real world performance of a SSD.
I personally want a more reliable drive, and they don't get more reliable than the Toshiba drives. TRIM support doesn't hurt also.
I use photoshop documents of 500mb+. Would i know the difference?
This is the most compariable drive to the Apple SSD. Same size single drive.
How does this matter in real world usage. My guess is not much. But still I wish Apple would have given us a better drive than the old Toshiba.
Single Vertex 3:240GB
Sequential Write:406MB/Sec. 4k blocks
Sequential Read:45MB/Sec. 4k blocks
Random Write:300MB/Sec. 4k blocks
Random Read:28MB/Sec. 4k blocks
Toshiba(Apple SSD):250GB
Sequential Write:231MB/Sec. 4k blocks
Sequential Read:38MB/Sec. 4k blocks
Random Write: 57MB/Sec. 4k blocks
Random Read:19MB/Sec. 4k blocks
you shouldn't be caring about is the Delta between one SSD and another SSD, but the delta between the HDD and any SSD.
Yes and no. I mean its a valid point, do not get a traditional HDD - the performance is no longer acceptable. I can't imagine installing a traditional rotating, rusting (ha) drive into my iMac.
However - there are performance differences between SSD's and it's a shame Apple picked a slow one. For me especially because I, from time to time, do data mining, and its important to have that latency lower. If one job takes and hour on apple's ssd, and takes 45 minutes on another drive - I prefer the faster drive.
But some say, OK its slower but I want reliability.
I have seen no evidence that Toshiba is more reliable...Samsung, Micron, Intel, all talk up reliability..., and frankly I think its wishful thinking to think Apple picked the drive for reliability - they picked it for profit margins, that I think is a more reasonable assumption.
They are warrantied for 3 years - assuming you paid for the 3 year Applecare - so in my mind thats the only real argument in favor of Toshiba -n - the only drive you can get with integrated Applecare - is the stock. So if thats critical, thats your choice.
If that isn't critical and someone doesn't mind cracking open the case - you can get a faster, better, and as reliable drive for your money.
There really should be a 3rd set of figures in here... the results for a "top-shelf" 7200rpm hard disk. Once people look at how those numbers compare to the HG3, it'll sink in that what you shouldn't be caring about is the Delta between one SSD and another SSD, but the delta between the HDD and any SSD.
Here are the figures for StorageReview's 7200rpm leader, the 2TB WD Caviar Black, which actually does ship in the 2011 iMacs (as does the current Seagate Barracuda):
Random Write: 1.568MB/Sec. 4k blocks
Random Read: 0.794MB/Sec. 4k blocks
(Storage Review does not have numbers for sequential read/write for 4KB block sizes)
------
Random I/O is what makes things feel slow, not sequential I/O. With the Caviar Black, you're still looking at an average of 6ms per I/O operation. Even value SSDs see latencies average in the 0.05 to 0.07ms range. That's a 100-fold difference.
I totally agree.
could have shown some respect and put a relatively fast SSD in the new Imac. Instead they slap on a hefty price tag on a mediocre at best SSD.
![]()
It appears from my tests the random write is 57Mb\Sec compared to the Mac Book airs 4.9Mb\Sec. It appears that Apple custom firmware with Toshiba's controller has been upgraded and is giving much better speeds, over ten fold random write speeds.
MBA has less channels in use. Anand tested the 64GB SSD which has only four NANDs in it, while most 2.5" SSDs have 16 NANDs. More channels help, especially with writes.