Go Back   MacRumors Forums > Apple Hardware > Desktops > iMac

Reply
 
Thread Tools Search this Thread Display Modes
Old Nov 30, 2012, 08:48 PM   #1
PavelT
macrumors member
 
Join Date: Nov 2012
iMac GPU and video editing

hello. my interest is video editing. i want to get serious with it. i use final cut pro and motion. i am going to buy a new iMac soon and iwant to get a powerful machine to edit, better than a macbook pro. but i cant figure out how the gpu will effect video editing? i dont play video games, i just edit video and have a lot of things open all the time. does it make the rendering faster? exporting faster? if the gpu has nothing to do with video editing i was going to get the 21.5, i7, 16ram, and gt650m gpu. i dont get it. can someone clear this up for me? thanks.
PavelT is offline   0 Reply With Quote
Old Nov 30, 2012, 09:23 PM   #2
racher
macrumors member
 
Join Date: Apr 2010
Location: Seattle, WA
I'm a video editor/compositor as well, although I primarily use Adobe products (Premiere Pro and After Effects) which can benefit greatly from GPU acceleration (specifically with the Mercury Playback Engine and the Ray Trace 3D Engine). I know that Apple FCPX and Motion depend on GPU to a degree, however not as much as the Adobe products as far as I'm aware. That said, I recommend buying the fastest GPU you can afford, since you won't be able to upgrade that component in the iMac in the future. GPU acceleration seems to be the way video software is going these days, so an investment in a fast GPU can go a long way in future proofing your computer investment.
racher is offline   0 Reply With Quote
Old Nov 30, 2012, 10:00 PM   #3
RoastingPig
macrumors 65816
 
RoastingPig's Avatar
 
Join Date: Jul 2012
Location: SoCal
Send a message via AIM to RoastingPig
get the 27 with the 680mx
__________________
Retina 13 256gb/8gb 5000.
RoastingPig is offline   0 Reply With Quote
Old Dec 1, 2012, 12:44 AM   #4
PavelT
Thread Starter
macrumors member
 
Join Date: Nov 2012
awesome. thanks. do you think the gtx 675 is sufficient for everything, or should i upgrade to 680 card? if i get the 675, will i be kicking myself in the foot later on?
PavelT is offline   0 Reply With Quote
Old Dec 1, 2012, 03:13 AM   #5
jablko
macrumors member
 
Join Date: Nov 2007
Location: Lincoln, Nebraska
To me, the question isn't what is sufficient now, but what you'll still be happy with in a couple years. Since that's not a user-replaceable part, and more and more processing is done on the CPU using OpenCL, it's not something I'd scrimp on.

The 680mx is likely to be much faster than the 675mx. I haven't seen benchmarks yet, but based on the specs, it will have twice the raw processing power and twice the RAM. While that may not translate into twice the real-world performance, the increase will be significant.
__________________
Macs are my tools, but not my only tools.
jablko is offline   0 Reply With Quote
Old Dec 1, 2012, 04:26 AM   #6
turtlez
Banned
 
Join Date: Jun 2012
the price to upgrade to the 680 is tiny, may as well do it because the performance difference is a lot bigger than the price difference
turtlez is offline   0 Reply With Quote
Old Dec 1, 2012, 01:50 PM   #7
PavelT
Thread Starter
macrumors member
 
Join Date: Nov 2012
i was going to get the 27 with 680mx and open mac to replace the hdd with an SSD. But after watching the difficult tear downs on ifixit. i dont think i want to do that. so I'm opting for the fusion drive....but with the 27inch,i7,and 680mx, i certainly cannot afford to add a fusion drive to that mix..its over my budget...so now I'm opting to go back to top of the line 21.5 with the 650 GPU...thoughts? for video editing
PavelT is offline   0 Reply With Quote
Old Dec 1, 2012, 02:12 PM   #8
vannibombonato
macrumors regular
 
Join Date: Jun 2007
Quote:
Originally Posted by PavelT View Post
i was going to get the 27 with 680mx and open mac to replace the hdd with an SSD. But after watching the difficult tear downs on ifixit. i dont think i want to do that. so I'm opting for the fusion drive....but with the 27inch,i7,and 680mx, i certainly cannot afford to add a fusion drive to that mix..its over my budget...so now I'm opting to go back to top of the line 21.5 with the 650 GPU...thoughts? for video editing
For editing by all means go with higher CPU and Graphic card, and definitely the 27''. These things are once-for-all, can't change them later.

The SSD does make a huge difference in a system, i feel my current macbook air much snappier than my old mac pro, but it's something you can add later via an external thunderbolt SSD that you can even boot from.

Video editing is one of the very few applications in which people can actually do drastically benefit from an actual difference driven by faster CPUs.
vannibombonato is offline   0 Reply With Quote
Old Dec 1, 2012, 04:34 PM   #9
PavelT
Thread Starter
macrumors member
 
Join Date: Nov 2012
Quote:
Originally Posted by vannibombonato View Post
For editing by all means go with higher CPU and Graphic card, and definitely the 27''. These things are once-for-all, can't change them later.

The SSD does make a huge difference in a system, i feel my current macbook air much snappier than my old mac pro, but it's something you can add later via an external thunderbolt SSD that you can even boot from.

Video editing is one of the very few applications in which people can actually do drastically benefit from an actual difference driven by faster CPUs.
I see. since the 21.5 has the same i7 cpu, its just 0.3ghz slower..will that work out or do i need the stronger GPU on the 27?
PavelT is offline   0 Reply With Quote

Reply
MacRumors Forums > Apple Hardware > Desktops > iMac

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Similar Threads
thread Thread Starter Forum Replies Last Post
2013 iMac GPU for video editing snapdragonx iMac 3 Apr 30, 2014 04:57 AM
Which GPU upgrade for video editing (Mac Pro 4.1) Discussion DustinB85 Mac Pro 28 Mar 4, 2014 05:21 AM
Video Editing:Brand new iMac vs refurb iMac nosignal iMac 10 Dec 4, 2013 07:26 PM
rMBP: Editing video in iMovie, editing photos in Aperture - using Intel HD 4000 GPU? spaceballl MacBook Pro 1 Oct 26, 2012 06:42 AM
Gaming vs HD Video & HiRes Photo Editing -- which is more SSD and GPU intensive? redirector iMac 2 Oct 24, 2012 02:40 PM

Forum Jump

All times are GMT -5. The time now is 04:44 PM.

Mac Rumors | Mac | iPhone | iPhone Game Reviews | iPhone Apps

Mobile Version | Fixed | Fluid | Fluid HD
Copyright 2002-2013, MacRumors.com, LLC