Don't agree. I am not buying CPU, I am buying mac mini to do the job.
Its a combination of CPU, GPU, memory, storage, bus etc..
CPU-to-CPU comparison may be interesting, but I am far more concerned by the final product performance.
On top of this - both minis in the comparison I've quoted were with the fusion drive
I can't run more plug-ins because of a fusion drive. I can't get higher polyphony from a software synth because of an SSD (the exception being the kind that stream audio like Eastwest Synphonic Orchestra Gold or VE Pro. An SSD can literally replace a RAID array or even a complete system in that case but it would have to be a seperate drive from the boot drive so it still doesn't count).
I can with a faster CPU/more cores and to an extent, with more RAM.
Handbrake must be pourly optimised for multiple CPUs to perform so badly.
You can rationalise your decision to pay through the nose for a dual i5 as a sensible one using any manipulated statistics you like but at the end of the day, you have to be very selective to find any advantage over a faster CPU. That's why I/O comes and Turbo Boost comes into play in any benchmark where the 2.8Ghz i5 is close to the 2.3Ghz i7.
In addition, think of the costs involved too.
The previous 2.3Ghz quad i7 was £649, if you add £160 for a Fusion drive, that's £809. £9 more than the 2.8Ghz model that replaces it in the range but that doesn't take into acount the extra RAM which Apple would happily charge another £80 for so really (with Apple inflated prices for £40 worth of SSD and a cable), the previous 2.3Ghz i7 would be £889 for what you get in RAM and storage with the 2.8Ghz model.
You lose a significant amount in multi-core power and the ability to upgrade the RAM yourself at a later date for no more than £125 using companies like Crucial or Kingston so the REAL cost should take into account the fact the 2014 is a soldered brick making it more like:
£809 for a 2012 2.3Ghz quad i7 with 1Tb Fusion + £125 for 16Gb of Crucial/Kingston RAM at later date.
(you can also sell the existing RAM on eBay if you want).
VS
£959 for a 2014 2.8Ghz dual i5 with 1Tb Fusion and 16Gb of Apple "soldered" RAM with no concession for trading in the 8Gb it already comes with and it all has to be paid at once.
The x264 CoDec (used by Handbrake) can use AVX2 instructions on the Haswell (or newer) platform. This increases the encode speed on newer Macs with Haswell processors. See also:
https://mailman.videolan.org/pipermail/x264-devel/attachments/20130423/ffd6bfb6/attachment-0001.pdf
Making Handbrake an entirely dishonest measure of actual CPU power. Thank you for proving my point!