In the 1TB Fusion drive associated with the cheapest new iMac, is the OS on the SSD portion of the drive?
i.e. is it worth $100 just to have a snappier OS?
i.e. is it worth $100 just to have a snappier OS?
The issue though, is unlike prior Fusion drives, the 1TB fusion drive has a tiny 24GB flash drive and as such, its hard to put the OS and anything else on it.That's the difference between Fusion (an automated process that optimizes the use of an expensive resource) and simply putting your OS and apps onto a separate SSD because you believe OS and apps benefit most from being on SSD (while data is not that important). If you do data-intensive work, your data deserves to be on SSD, too.
The issue though, is unlike prior Fusion drives, the 1TB fusion drive has a tiny 24GB flash drive and as such, its hard to put the OS and anything else on it.
Personally, the major reason why I went for the 2TB Fusion drive is that it has the 128GB flash storage.
The 1TB Fusion Drive pairs a 1TB hard drive with 24GB of fast flash — enough to store important OS X 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 flash storage, providing even more space for your most frequently used files. For the best performance, iMac systems with 32GB of memory should be configured with a 2TB or larger Fusion Drive or all flash storage.
In the 1TB Fusion drive associated with the cheapest new iMac, is the OS on the SSD portion of the drive?
i.e. is it worth $100 just to have a snappier OS?
I can appreciate the widespread, "WTF, only 24 GB" response, but it's not based on benchmarking results
I'll grant you that my complaints against the 1TB Fusion drive is not based on benchmarks but it is based on what I do, how I use the Mac and what files I have, and I'm pretty certain that I use a number of files and apps that would exceed that flash amount, heck, when you factor in the OS, there's a lot less in the 24GB available for you. Also while I don't have benchmarks, I have played with them in the apple store and while not scientifically accurate, I did find the Macs with the 1TB drives to feel slower then the higher spec'd macs on the display floor.
Overall, its just my twisted logic that 128GB of storage will be able to hold more of my files, so accessing those files will be much faster then on a hard drive. Another benefit, is the 2TB Fusion drive (at least on the 5k) uses a 7200rpm drive, which is another advantage.
OP here... my second question was unnecessary — I absolutely know it's worth $100 (even more, imo) to have a snappier OS on an SSD. My first question was really the only relevant question.
Is the SSD part of a fusion drive a physically separate drive with its own partition or is it some kind of Frankenstein construction?
I have a mid level iMac 5K (3.2GHz i5) with the 1TB fusion drive and 16GB of RAM. I opted for the slightly better GPU. I use Photoshop to edit rather large RAW images, and final cut pro X to edit 1080 footage. I'm not hurting for speed anywhere on this machine. I didn't think it was worth the extra cash to get a pure SSD setup or a larger fusion drive. People seem to be freaking out a bit about the smaller flash storage, but as I said, definitely not hurting for speed here. I understand everyone has their own usage scenarios. I use two Pro apps, but I'm by no means a Pro as in I don't make money from this stuff, its just a hobby. Maybe if you were a Pro making cash it would be different, but then you'd probably be using the Mac Pro...just my thoughts.
I just ordered the same config as you but on the 21.5" iMac. Glad to hear performance is snappy since I'll be using the same pro apps as you!
So the current fusion drives do not have 128GB SSD anymore?
I have the previous gen iMac 5K, I was thinking about splitting the fusion drive. 128GB could hold the oS and more. 16 or 24GB is useless.
The 1TB has 24GB, and a 5400 rpm drive, the 2TB has 128GB of flash storage and uses a 7200rpm drive. I think that combination gives you the best balance of speed and cost imoSo the current fusion drives do not have 128GB SSD anymore?
I have the previous gen iMac 5K, I was thinking about splitting the fusion drive. 128GB could hold the oS and more. 16 or 24GB is useless.
The 1TB has 24GB, and a 5400 rpm drive, the 2TB has 128GB of flash storage and uses a 7200rpm drive. I think that combination gives you the best balance of speed and cost imo
I am pretty sure this is not correct.
Everything I have seen leads me to believe that the 21.5" iMac has a 5400rpm drive in any configuration. Any Fusion configuration.
The 27" has a 7200rpm drive in any configuration.
Looking inside the of 21.5" iMac, it becomes obvious that there is no room for a 3.5" drive. Everything is packed in very tight. This is why Apple has used 5400rmp drives since the remodel in 2012. It is a space issue. Making room for that one drive would require a redesign of the entire inside layout. This is obviously not something Apple would do for two only models.
We can also look at Apple's habit of using modular parts a given model size. They want everything to be interchangeable, particularly at the low-end.
Yes, the 27 inch has a 7200 RPM drive.Yes, from my understanding 21.5" = 5400 2.5", 27" = 7200 RPM 3.5"
[doublepost=1452882545][/doublepost]This would indicate that the 2TB drive without the SSD performs poorly? Very Poorly.Yes, the 27 inch has a 7200 RPM drive.
Here are my speed tests again if anyone is interested.
2TB HDD from split up Fusion Drive: