is "1TB Flash Storage" on 27" imac of type MLC or TLC?

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john.tromp Author

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is "1TB Flash Storage" on 27" imac of type MLC or TLC?

I've called 1-800-MYAPPLE about a half-dozen times to try get this question answered,

but no-one is able to find out. I lost count of the number of times I've been transferred...

Has anyone gotten the 1TB Flash option since it became available very recently, and can

tell me what SSD their imac was actually shipped with? This should show up under the

hardware profile menu.

I intend to use the SSD very intensively, reading and writing constantly over many months,

and do not trust TLC to be durable enought for this.

regards,

-John

iMac

Posted on Oct 9, 2013 7:48 AM

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Answer 1

john.tromp Author

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Oct 9, 2013 11:28 AM in response to john.tromp

If the 1TB Flash is TLC then what about the smaller 256 and 512GB drives?

If they're all TLC then I would rather buy an external ThunderBolt SSD...

-John

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Answer 2

rgilbert

Level 4

1,048 points

Oct 9, 2013 12:28 PM in response to john.tromp

I do have a new 27" iMac with the 1TB PCIe Flash. It does not show in the profile menu either TLC or MLC. Wished Apple would allow both the Flash and a Fusion in the Configure to Order iMacs.

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Answer 3

john.tromp Author

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Oct 9, 2013 12:35 PM in response to rgilbert

> It does not show in the profile menu either TLC or MLC

Is there any identifying information on the 1TB PCIe Flash?

Like manufacturer and/or model?

Can you even tell if it's a single 1TB SSD or two 500GB SSDs?

regards,

-John

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Answer 4

rgilbert

Level 4

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Oct 9, 2013 12:44 PM in response to rgilbert

Maybe this will help:

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Answer 5

john.tromp Author

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Oct 9, 2013 12:59 PM in response to john.tromp

So the device profile is

APPLE SSD SM1024F

Which means Apple is hiding the device identity behind their own made up model number.

So I guess the answers will only come from someone opening up their 1TB flash equipped imac...

regards,

-John

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Answer 6

john.tromp Author

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Oct 9, 2013 2:55 PM in response to john.tromp

I believe SM1024F is short for Samsung.1024 GB Flash.

The new iMac apparently uses PCIe SSDs, which hints at the Samsung XP941.

That is available in sizes of 128GB, 256GB, and 512GB.

Does that mean that SM1024F denotes two Samsung XP941 512GB drives?

Or perhaps Apple uses a custom version that omits some of the redundancies

inherent in two identical such drives?

Time will tell...

regards,

-John

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Answer 7

john.tromp Author

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Nov 18, 2013 8:07 PM in response to rgilbert

dear rgilbert,

when you say "I do have a new 27" iMac with the 1TB PCIe Flash"

how do you know that it's PCIe? Does that show up in the hardware profile?

Thanks again!

-John

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Answer 8

rgilbert

Level 4

1,048 points

Nov 18, 2013 8:58 PM in response to john.tromp

John,

I cannot as I have never opened it up. It may not be a "PCIe". All I can see is this:

It is a new 27" iMac with a 1TB Flash using PCI protocol. Hope this helps.

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