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Roadking714

macrumors regular
Original poster
I know the rmbp 15 is a very good fast machine and comparing to the new rMBP 13 dual core what differences will I see from a dual core machine vs a quad core?
 
I know the rmbp 15 is a very good fast machine and comparing to the new rMBP 13 dual core what differences will I see from a dual core machine vs a quad core?
It completely depends on your typical workload. Most users won't see any noticeable difference in performance between various processors, because most users never fully tax even the slowest processor.
 
Do you have apps that can and will take advantage of the extra CPU cores? No, then you'll not really notice a speed difference.

Apps like VMware Fusion, or PS, need the extra horsepower, other apps are not written to take advantage, or if you don't have a lot of apps open at any given time.
 
In apps that scale well up to 8 threads you'll se 100% increase in performance.
In 1-2 core processes you'll get basically nothing extra.. 🙂
 
So running a virtual machine I will notice a lag? And photoshop
Not necessarily. Again, it depends on the workload. For example, what apps and what kind of workload would you have running in your VM? Same for Photoshop. Some functions don't take a lot of processing power. Some do.
 
Nothing heavy at the moment just basics when running VM, excel or phone programs

Depends on how many cores you assign to the VM as well.

On my 13", I assign 2 threads (1 physical core) to a Windows 8.1 VM. Which means there's only another 2 threads left for OS X apps.

Running Photoshop together seems to be fine, but only if in clamshell mode. VMware Fusion doesn't seem to run on the internal display well.
 
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