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makemacgreatagain

macrumors newbie
Original poster
Feb 14, 2017
17
0
How would a Macbook Pro with a top-end external GPU compare to top-end desktops for video editing using Adobe applications, for example? Know of any reliable benchmarks demonstrating this type of comparison out there? I'm guessing this is a more of a CPU & bandwidth question on desktop vs laptop - but there could be other factors as well.
 
There is roughly a 10% performance loss with egpus compared to a desktop with the same card installed. Don't have sources on hand but from all my research on eGPU.io and YouTube videos this is what has mostly been spread around.
 
There is roughly a 10% performance loss with egpus compared to a desktop with the same card installed. Don't have sources on hand but from all my research on eGPU.io and YouTube videos this is what has mostly been spread around.

Sure, but this doesn't mean you can get 90% the performance using a MBP + external GPU vs desktop + internal GPU of same GPU?
 
Sure, but this doesn't mean you can get 90% the performance using a MBP + external GPU vs desktop + internal GPU of same GPU?

From what I've seen, yes, you can. As long as the laptop has 4 pcie lanes, the GPU performance is just under by a little bit if it was installed in a desktop.
 
Great, but what about the laptop va desktop CPU performance hit. Not totally obvious how much various programs rely on CPU vs GPU. I know people had issues getting premier to perform using external GPUs...
 
Great, but what about the laptop va desktop CPU performance hit. Not totally obvious how much various programs rely on CPU vs GPU. I know people had issues getting premier to perform using external GPUs...

Most CPU's in laptops are not as powerful as the desktop equivalents, unless you have a custom workstation like a Sager that has desktop CPU's in it. eGPU performance is roughly a 10% difference as mentioned above. For CPU disparity you will have to look at what the software requires and what is available on the machines in question.

For video editing, where most of the MBP reviews are geared towards, they appear to be extremely capable where CPUs are concerned.
 
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