New i5's faster than old i7's on Macbook?

[ehzool]

I have 2 questions:

I have a 15 inch, Mid 2015 Macbook Pro (It was the $1,999 model back then), here are the specs.

https://imgur.com/9vz6nn5

1) It's a 2.2 GHz i7 processor, and I noticed the new iMac's start with a i5 processor but it's a 3.4 GHz processor. Does that mean it's a better processor?

2) The biggest thing I do is edit 4k videos in Final Cut Pro. An apple sales rep said that a Fusion drive will be ok because there's not much difference with an SSD in terms of editing 4k video. I feel like that's not true at all. Editing 4k videos in Final Cut would be a lot smoother on an SSD than a normal Hard drive right? Even with the graphics card?

 

[cynics]

1. There is much more to a CPU being "better" than its Ghz. However in this specific example the 3.4ghz i5-7500 in the iMac should generally be faster.

2. Depends on how much the HDD portion of the Fusion Drive is being leveraged. SSD performs would be better overall though. Editing videos COULD be smoother with an SSD in FCP however there are other variables we can dismiss. RAM, GPU, etc...

Maybe we could help you more if you told us what you were trying to accomplish. Are you having a problem? Is the solution a potentially buying a new desktop? You use FCP often? Any other apps you use a lot?

Personally I feel performance is very important but screen size, quality, calibration and resolution also play major factors in video editing.

 

[keysofanxiety]

The mobile i7 is better for your workload than the desktop i5, partly due to the hyperthreading (twice as many virtual cores for software to utilise). This is especially beneficial for Pro apps like LPX and FCPX.

As a rule of thumb I find it is best to search for the model of your Mac on EveryMac, then check the CPU rating on CPU benchmark. It's not infallible because core count can slightly skew scores and per-core performance is very important. However generally speaking, the higher the number, the more powerful the processor.

15" 2015 MBP:

https://everymac.com/systems/apple/...-iris-only-mid-2015-retina-display-specs.html
https://www.cpubenchmark.net/cpu.php?cpu=Intel+Core+i7-4770HQ+@+2.20GHz&id=2399

27" 5K 27" iMac:

https://everymac.com/systems/apple/...7-inch-aluminum-retina-5k-mid-2017-specs.html
https://www.cpubenchmark.net/cpu.php?cpu=Intel+Core+i5-7500+@+3.40GHz&id=2910

A Fusion drive will not be good for FCPX. If you're working with 4K video, the SSD portion will be used up in no time and it'll be reading from the HDD due to the size of the files. It will get very choppy very quickly. I would suggest getting the i7 in the iMac and pure Flash.

Due to the dGPU in the iMac, FCPX will utilise this with Metal - this is one immediate advantage of the iMac compared to the iGPU in your MBP. So overall the iMac is far more capable: I would just suggest bumping to the i7 and going pure Flash to ensure best performance & longevity for your workload.