|Jan 14, 2013, 09:22 AM||#2|
In summary this article claims the 3.2GHz Core i5 of the top-end 27" iMac to be inferior to the 2.9GHz Core i5 of the entry level version.
The only other difference in the machines being the GPUs.
As someone who is about to receive the 3.2GHz Core i5 iMac, these are not results I wanted to see but perhaps I am not going to tighten the noose just yet. There's lies, damn lies and then there's statistics. I am sure the tests they run have more to do with the HDD than anything else. Perhaps luck of the draw? Mine sports fusion anyway, so hoping it's got a bit more zip
|Jan 14, 2013, 09:29 AM||#3|
The difference is extremely minor and almost certainly due to the hard drives. Furthermore, these results shouldn't be surprising at all as the two models are nearly identical, one being the 3470 and the other is the i5 3470S, differing in just 0.3GHz. For all intents and purposes, the performance difference between the two is negligible anyway.
|Jan 14, 2013, 09:34 AM||#5|
The review attributes the speed difference to the Seagate Barracuda drive vs the Western drive. I'd like to see the same tests with each iMac sporting the same drive - preferably the fusion drive.
You don't have to read between the lines to determine that their testing methodology is for overall speed and not a measure of CPU/GPU performance alone and they state that the Cinebench tests of CPU performance show the higher end processor to be 7% faster.
|Jan 14, 2013, 10:11 AM||#6|
Still, given hard drives are the bottleneck of modern pc, it is a little disheartening to see such a gap in performance between the two drives.
Late 2012 27" iMac 3.4Ghz, 32GB, 1TB fusion, 675MX
Late 2011 15" MacBook Pro, 2.2Ghz, 16GB, 250GB SSD
iPhone 5 Black 32GB; iPad 4 Black 32GB
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