There are three types: Those who know nothing and don't care. Those who know a little bit ("knowing just enough to be dangerous"). And those who actually know.
The iMac has a 2.5" hard drive. There is no 1 TB 7200 rpm hard drive. 1 TB is the largest you can get (except for 15mm high drives). It has the highest data density of all 2.5" drives, and data density is what matters for large files. All the small files, where the bigger latency due to lower rpm hurts you, are not on the hard drive, but on the SSD drive.
So if what you care about is rpm, then avoid the Fusion Drive. If what you care about is real-life speed, this drive is probably the best you can get.
These people also won't know how increased platter density improves performance either.
There was a time (before SSD) when some of the speed freaks replaced perfectly fine large 5400 rpm drives with tiny 7200 rpm drives - not knowing that the higher rpm drives where actually slower in real life.
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You talk about it like hybrid hard drives haven't been around for years doing exactly that. Nothing about this hybrid drive is novel.
Please go back to all those threads that appeared when Fusion Drive was introduced to see how wrong you are.
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Nothing "ace" to me. They are just using the functionality of intel chipset that was available since z68 chipset was introduced. Intel SRT. What is interesting is how did they bypassed the 64gb limmitation of that technology. Could be a custom chipset.
Article after article has been written about this, and you couldn't be any wronger. Look at the ars technica article for some in-depth information. There is no chipset. And no custom chipset. If you want, you can use the "Fusion Drive" technology with two USB sticks, and it works just fine (obviously not fast, and obviously not very useful, but it works. You can turn two 16 GB USB sticks into a very slow 32 GB Fusion Drive, if you feel like it).
Wow! Intelligent drive! A miracle of engineering!
Hm, You can have your fusion drive by installing OSX on SSD and mounting HDD volume/partition under root "/Users" directory as mount point.
A miracle of engineering! Intelligent drive! Wow!
For real Apple??? Really eclipsing Apple history of innovation with this one... Be very, very proud/full of yourselves!
All these ignorant posts have been debunked over and over in various threads. Why do you have to post another one? What you suggest is _exactly_ what a fusion drive is not. Fusion drives make use of _all_ the expensive space on the SSD drive, they improve access to exactly those files that actually need speed (so of your 200 printer drivers, the 198 that you don't use are on the HD; of the 20 different languages in iTunes 19 are on the HD, the iMovie intro videos move to the HD once you watched them, and the documents that you access are all on the SSD).