Can someone help me understand this? According to this compilation of Geekbench benchmarks
http://www.primatelabs.com/blog/2012/12/mac-benchmarks-december-2012/ the top end 2012 Mac Mini is basically within 10% of the speed of the top 27" iMac despite the fact that the Mini is using a processor that is about 2/3" the speed and a mobile processor to boot.
Can someone comment on real world performance of these two machines? What I'm really after is a fast machine for photo processing, but if a Mini with 1 TB fusion drive is really so close in performance for that application to an iMac, I'm hard pressed to see why I should go with the iMac.
Thanks!
2012 iMac vs. 2012 Mini backup and boot up times
In December I tried two 2012 21.5 iMacs with 2.9GHz i5 processor, 1TB Fusion drive and 16GB RAM. A month ago I returned the replacement iMac for a 2012 Mini with 2.6GHz i7 processor, 256GB SSD and 4GB RAM which I replaced with 16GB from Micron.
I used the same external hard drive and FireWire 800 cable with all the backups. The only difference was I needed an Apple Thunderbolt to FireWire adapter with the iMacs. All other factors Mike Bombich of Carbon Copy Cloner list that could affect the speed of a clone or backup were the same. He wrote
The speed at which CCC transfers data from one volume to another depends on numerous factors such as:
1 The interface through which those hard drives are connected to the computer
2 The speed of the source and destination hard drives (RPMs, seek time)
3 The method used to transfer data from one volume to another (file-level copy, block-level copy, backup to a disk image)
4 The chipset in an external hard drive enclosure
5 Fragmentation of data and how close the source volume is to full capacity
6 The size distribution of files on the source volume
7 The health of the source and destination hard drives
8 The quality of cables that connect the source and destination volumes to your computer
9 The architecture and speed of the computer's processor(s) and any CPU or disk-based activity that the backup task must compete with.
It took 3 to 4 minutes to copy the same amount of data with the iMacs that it does in 6-7 minutes with the Mini.
The iMacs booted up in about 5 seconds. The Mini takes almost 10 seconds.