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Level 1

13 points

2017 iMac : fusion drive details

Hello,

Like other people I was wondering about the Display Target Mode : will USB-C (Thunderbolt 3) will allow this feature again???

But my point in this particular topic is the fusion drive : I am thinking about a new 5K iMac, but I still see the 1Tb and 2 Tb options for Fusion Drives. Does anybody have a clue if the 1Tb is still having the very low 24Gb SSD part? and The 2Tb FD has the 128Gb part? Apple emphasis was about SSD speed improvement, but not on Fusion Drive...

Thanks for your hints or piece of info!

iMac with Retina 5K display, iOS 10.3.2

Posted on Jun 6, 2017 5:43 AM

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djodjo71 Author

Level 1

13 points

Posted on Jun 7, 2017 1:15 AM

Hello community,

I have found some extra details in Apple description : "The 1TB Fusion Drive pairs a 1TB hard drive with 32GB of fast SSD — enough to store important macOS files and applications to ensure fast startup, near instant wake from sleep, and quick application launching, with room left over for your most frequently used files and apps. The 2TB and 3TB Fusion Drives pair a larger hard drive with 128GB of fast SSD storage"

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29 replies

tcwan

Level 1

4 points

Jul 19, 2017 5:36 PM in response to djodjo71

Hmm. I have a new iMac 2017 4K with 1TB Fusion Drive, and the System Information details show the SSD as:

APPLE SSD SM0032L:

Capacity: 28 GB (28,000,002,048 bytes)

TRIM Support: Yes

Model: APPLE SSD SM0032L

Revision: DXZ86A0Q

It is not 32 GB by any stretch of the imagination!

tcwan

Level 1

4 points

Jul 21, 2017 1:21 AM in response to billm

I'm not sure if it is necessarily your fault, since the common understanding is that it has a 32 GB SSD for the 1 TB Fusion Drive. I think physically it is probably 32 GB, but actual usable space is 28 GB (4 GB is for spare blocks).

This boils down to marketing-speak, I believe. It's unfortunate that Apple is starting to come down to the level of providing misleading information to users.

Note: I don't know if the previous 1 TB Fusion Drive had 24 GB of actual usable SSD space?

MichelPM

Level 10

80,980 points

Aug 22, 2017 1:54 PM in response to djodjo71

New, 2017, 21 inch 4K iMacs come with a Fusion Drive with 256, 512 GBs OR 1 TB SSD tied to a 1TB 5400 RPM hard drive.

Specs listed here, folks!

https://www.apple.com/imac/specs/

You're Welcome.

Jun 8, 2017 3:43 PM in response to djodjo71

I just got done with a chat. She said it was a 32GB SSD in the 1T Fusion Drive. Didn't ask about the 2TB.

James843

Level 1

22 points

Jun 14, 2017 8:13 PM in response to Moe_Gravey

that's what exactly I'm wondering

Jul 7, 2017 2:26 PM in response to romeii

that's correct. the earliest fusion drive 1tb had 128 gb ssd but after a few years brought it back to the new configuration of 32gb or maybe even 24 gb as of now.