Take the 2-minute tour ×
Ask Different is a question and answer site for power users of Apple hardware and software. It's 100% free, no registration required.

the 27" versions of the new iMac come with either the AMD HD 6770M or HD 6970M GPU. How do they compare performancewise? Is it worth its money?

share|improve this question
    
What do you want to do with it? Are you a hard core gamer or a die hard iOS developer? Those are totally different things. :) –  rightfold May 4 '11 at 15:59
    
If you're going to do 3D stuff (Gaming, CAD, etc.) you want the fastest available card, especially on a system that won't allow you to upgrade it. That machine is going to be with you for the next 2++ years (my Mac Pro is from 2008 but I have upgraded the video card, an iMac owner can't). So unless you plan on upgrading the whole machine in a couple of years or you don't care about graphics, I suggest you go for the high end, if you can afford it. –  Martín Marconcini May 4 '11 at 19:14
    
I am a multimedia guy (final cut pro, illustrator, aperture, lightroom, photoshop, Garage band, reason), software developer (visual studio, xcode) and die hard HD movie freak. –  bitbonk May 4 '11 at 19:15

2 Answers 2

up vote 0 down vote accepted

It seems the answer is 'not huge, but noticeable', maybe 15-20%. I'm not sure what the price tag difference is off hand, but if you're working on graphics apps, games, video - get what you can afford, with the iMac's not being upgradeable in that sense, what can it hurt to do so? With an all in one I'm a big believe in buying what you can afford to get.

That said - if you're going to replace the machine next year? Don't worry so much.

share|improve this answer

You can compare these graphic cards at Tom's Hardware

share|improve this answer
    
That are not the mobile version –  bitbonk May 4 '11 at 20:52
    
I found at Tom's Hadrware again that 6970m is little less powerful than a 6850. I also found on different board that 6770m is little less powerful than a 6670. So can make your own compare from Tom's Hardware Radeon 2011 page –  Bil_fr May 4 '11 at 23:00

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.