Fusion and SSD question

Started Apr 8, 2013 | Discussions
fly1
Regular MemberPosts: 407
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Fusion and SSD question
Apr 8, 2013

Hi guys,

My very old windose laptop has finally gone to heaven, (may have gone somewhere else the way it was behaving;-) )

Now surviving with an iPad until about June 30 when I hope to get a  27" iMac, maxed out except I cannot decide on which HD

The storage on the 3TB fusion looks very tempting but I'm thinking the 768GB SSD would be attractive also,

Would there be much difference in speed between the two? I'm thinking mainly processing power and speed for image editing programs, and am planning to add another camera soon which is 36mp and files are around 100MB !

Regards,

Gary

noirdesir
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Re: Fusion and SSD question
In reply to fly1, Apr 8, 2013

fly1 wrote:

Hi guys,

My very old windose laptop has finally gone to heaven, (may have gone somewhere else the way it was behaving;-) )

Now surviving with an iPad until about June 30 when I hope to get a  27" iMac, maxed out except I cannot decide on which HD

The storage on the 3TB fusion looks very tempting but I'm thinking the 768GB SSD would be attractive also,

Would there be much difference in speed between the two? I'm thinking mainly processing power and speed for image editing programs, and am planning to add another camera soon which is 36mp and files are around 100MB !

I'd say in 95% of all situations they will have a very similar speed. The Fusion Drive maintains a buffer of 4 GB. If you, eg, import images from a memory card of more than 4 GB, the import process will slow down after these 4 GB (of course things also depend on the speed of your memory card and card reader if they are slower than the 3 TB 3.5" HDD than you naturally will not see any difference).

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fly1
Regular MemberPosts: 407
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Re: Fusion and SSD question
In reply to noirdesir, Apr 8, 2013

Thank you for the heads-up,

I am using 16GB cards now for my wildlife images and I can see me increasing that to 32GB cards for future camera purchases, a 36mp camera will demand at least 16GB I guess

Starting to appear like.

Pone-up for the 768SSD and just store media on portable drives and leave the SSD for programs and processing,

At first 768GB SSD looked small but I guess it would handle a stack of software and still have enough in reserve if the media is stored externally?

Regards,

Gary

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webfrasse
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Re: Fusion and SSD question
In reply to noirdesir, Apr 8, 2013

noirdesir wrote:

fly1 wrote:

Hi guys,

My very old windose laptop has finally gone to heaven, (may have gone somewhere else the way it was behaving;-) )

Now surviving with an iPad until about June 30 when I hope to get a  27" iMac, maxed out except I cannot decide on which HD

The storage on the 3TB fusion looks very tempting but I'm thinking the 768GB SSD would be attractive also,

Would there be much difference in speed between the two? I'm thinking mainly processing power and speed for image editing programs, and am planning to add another camera soon which is 36mp and files are around 100MB !

I'd say in 95% of all situations they will have a very similar speed. The Fusion Drive maintains a buffer of 4 GB. If you, eg, import images from a memory card of more than 4 GB, the import process will slow down after these 4 GB (of course things also depend on the speed of your memory card and card reader if they are slower than the 3 TB 3.5" HDD than you naturally will not see any difference).

Where do you find that 4GB buffer info?

http://www.anandtech.com/show/6679/a-month-with-apples-fusion-drive/3

http://barefeats.com/imac12d1.html

-- hide signature --

Mikael

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JulesJ
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Re: Fusion and SSD question
In reply to fly1, Apr 8, 2013

fly1 wrote:

Hi guys,

My very old windose laptop has finally gone to heaven, (may have gone somewhere else the way it was behaving;-) )

Now surviving with an iPad until about June 30 when I hope to get a  27" iMac, maxed out except I cannot decide on which HD

The storage on the 3TB fusion looks very tempting but I'm thinking the 768GB SSD would be attractive also,

Would there be much difference in speed between the two? I'm thinking mainly processing power and speed for image editing programs, and am planning to add another camera soon which is 36mp and files are around 100MB !

Regards,

Gary

I just got a new iMac 27" I got the fastest processor and bought the max extra RAM, but I did not go for the fusion drive. I don't run lots of programmes at once, usually just CS6 and sometimes LR4 together. I have had no speed problem issues at all in the couple of months of use so far. All is good.

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noirdesir
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Re: Fusion and SSD question
In reply to webfrasse, Apr 8, 2013

webfrasse wrote:

noirdesir wrote:

fly1 wrote:

Hi guys,

My very old windose laptop has finally gone to heaven, (may have gone somewhere else the way it was behaving;-) )

Now surviving with an iPad until about June 30 when I hope to get a  27" iMac, maxed out except I cannot decide on which HD

The storage on the 3TB fusion looks very tempting but I'm thinking the 768GB SSD would be attractive also,

Would there be much difference in speed between the two? I'm thinking mainly processing power and speed for image editing programs, and am planning to add another camera soon which is 36mp and files are around 100MB !

I'd say in 95% of all situations they will have a very similar speed. The Fusion Drive maintains a buffer of 4 GB. If you, eg, import images from a memory card of more than 4 GB, the import process will slow down after these 4 GB (of course things also depend on the speed of your memory card and card reader if they are slower than the 3 TB 3.5" HDD than you naturally will not see any difference).

Where do you find that 4GB buffer info?

http://www.anandtech.com/show/6679/a-month-with-apples-fusion-drive/3

Here for example: http://www.anandtech.com/show/6406/understanding-apples-fusion-drive

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webfrasse
Veteran MemberPosts: 3,770
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Re: Fusion and SSD question
In reply to noirdesir, Apr 8, 2013

noirdesir wrote:

webfrasse wrote:

noirdesir wrote:

fly1 wrote:

Hi guys,

My very old windose laptop has finally gone to heaven, (may have gone somewhere else the way it was behaving;-) )

Now surviving with an iPad until about June 30 when I hope to get a  27" iMac, maxed out except I cannot decide on which HD

The storage on the 3TB fusion looks very tempting but I'm thinking the 768GB SSD would be attractive also,

Would there be much difference in speed between the two? I'm thinking mainly processing power and speed for image editing programs, and am planning to add another camera soon which is 36mp and files are around 100MB !

I'd say in 95% of all situations they will have a very similar speed. The Fusion Drive maintains a buffer of 4 GB. If you, eg, import images from a memory card of more than 4 GB, the import process will slow down after these 4 GB (of course things also depend on the speed of your memory card and card reader if they are slower than the 3 TB 3.5" HDD than you naturally will not see any difference).

Where do you find that 4GB buffer info?

http://www.anandtech.com/show/6679/a-month-with-apples-fusion-drive/3

Here for example: http://www.anandtech.com/show/6406/understanding-apples-fusion-drive

Looks like Anandtech contradicts themselves, look at my link above.

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Mikael

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noirdesir
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Re: Fusion and SSD question
In reply to webfrasse, Apr 8, 2013

webfrasse wrote:

noirdesir wrote:

webfrasse wrote:

noirdesir wrote:

fly1 wrote:

Hi guys,

My very old windose laptop has finally gone to heaven, (may have gone somewhere else the way it was behaving;-) )

Now surviving with an iPad until about June 30 when I hope to get a  27" iMac, maxed out except I cannot decide on which HD

The storage on the 3TB fusion looks very tempting but I'm thinking the 768GB SSD would be attractive also,

Would there be much difference in speed between the two? I'm thinking mainly processing power and speed for image editing programs, and am planning to add another camera soon which is 36mp and files are around 100MB !

I'd say in 95% of all situations they will have a very similar speed. The Fusion Drive maintains a buffer of 4 GB. If you, eg, import images from a memory card of more than 4 GB, the import process will slow down after these 4 GB (of course things also depend on the speed of your memory card and card reader if they are slower than the 3 TB 3.5" HDD than you naturally will not see any difference).

Where do you find that 4GB buffer info?

http://www.anandtech.com/show/6679/a-month-with-apples-fusion-drive/3

Here for example: http://www.anandtech.com/show/6406/understanding-apples-fusion-drive

Looks like Anandtech contradicts themselves, look at my link above.

Here is another link talking about a 4 GB buffer that however in some situations is increased to 8 GB.

On page six of your link Anandtech also talks about a 4 GB buffer. So, it really looks like 4 GB is the normal offer but in some situations, in particular writes, that can be expanded to 8 GB.

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Snodayz
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Re: Fusion and SSD question
In reply to JulesJ, Apr 9, 2013

I'm in the process of buying the same machine, but have opted for the fusion drive.  My understanding is that internal busses are generally faster than external drives and so accessing photos within my library will be faster (although the initial boot into Aperture will be fractionally slower).  Photo editing should be identical between the two as that is done in RAM and 32Gb should be more than enough even for large individual files.  Lastly, I'm not keen on my primary library existing on something as portable as an external HD - way too easy for a burglar to walk off with.  I keep no less than three external backups of my photo library at all times with at least one of these off-site.  When my content eventually outgrows 3Gb my movies and music will go to external drives but I'll keep my photo library inboard for as long as possible.  Who knows, by then internal multi-Tb SSD's may be available and much cheaper than now.

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