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Blake1

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Original poster
Feb 17, 2011
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So I've waited for the new iMacs to come out so I can buy one, and they are now here. I always figured the 27" would be the best for gaming, but I have read that the larger screen size can bog down Frames per second because the resolution is much higher.

I am curious what the opinion between the two models are. Taking into account that they can have whatever upgrade for each. This may have an obvious answer, but I just wanted to check. Thanks.
 

alust2013

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Feb 6, 2010
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On the fence
If you want to game, the 27" 3.1 i5 (or with the i7 option) would be the best. The 6970m is a beast of a card, regardless of it being mobile, so I'd say that's your best bet. From what I have read, it will game pretty darn well, and even if it won't do at full res for some really intense games (I saw someone post Portal 2 at max settings, AA and res with 40-60 FPS), drop it to 1080p, and you won't have any issues at all.
 

Lord Appleseed

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Nov 7, 2010
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Apple Manor
If you want to game, the 27" 3.1 i5 (or with the i7 option) would be the best. The 6970m is a beast of a card, regardless of it being mobile, so I'd say that's your best bet. From what I have read, it will game pretty darn well, and even if it won't do at full res for some really intense games (I saw someone post Portal 2 at max settings, AA and res with 40-60 FPS), drop it to 1080p, and you won't have any issues at all.

^This

Damn, as soon as I get mine i will make a video of Crysis 2 and later this Month of The Witcher 2, both with max. Resolution and playable graphic settings.
 

QCassidy352

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Since the high end 21.5 has the same card as the base 27, it's pretty easy to predict the former will have higher fps if they are both set to native res. But the graphics on the high end 27" are enough of an improvement that they should more than make up for the higher res.
 

Icaras

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Mar 18, 2008
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Thanks for this thread. I've been wondering the same.

If we stick with the high end 21.5" vs. base 27", it would be safe to assume, as xjosh mentions, that the 21.5" would outperform the 27", due to the differences of native resolutions between the two, correct?

I think this is important to note, since this is a $200 difference.
 

xjosh

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Jan 7, 2011
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Thanks for this thread. I've been wondering the same.

If we stick with the high end 21.5" vs. base 27", it would be safe to assume, as xjosh mentions, that the 21.5" would outperform the 27", due to the differences of native resolutions between the two, correct?

I think this is important to note, since this is a $200 difference.

Yes but the 27' screen is also nice for other things, but i'll like to see some bencmarks between them.

But what about looking for the base 21,5 iMac?

The 6770 anit so much better than the 6750.
 

QCassidy352

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Icaras said:
Thanks for this thread. I've been wondering the same.

If we stick with the high end 21.5" vs. base 27", it would be safe to assume, as xjosh mentions, that the 21.5" would outperform the 27", due to the differences of native resolutions between the two, correct?

I think this is important to note, since this is a $200 difference.

Yes, though you could always set the 27" to the res of the 21.5", and then they'd be the same. I personally think that looks fine, but I know many disagree.
 

frocco

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How does the 6970 compare to a Dell that has a 5770 card?
 

Blake1

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Feb 17, 2011
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Yes, though you could always set the 27" to the res of the 21.5", and then they'd be the same. I personally think that looks fine, but I know many disagree.

I assume some would dissagree because it would be more "pixellated", right? Could you reduce the display size to match the 21.5" display? Does that make sense? May seem like an odd question but why not?
 

alust2013

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Feb 6, 2010
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I assume some would dissagree because it would be more "pixellated", right? Could you reduce the display size to match the 21.5" display? Does that make sense? May seem like an odd question but why not?

Ish. Games are a little different, as you set the res from within the game, and actually look decent at lower than native most of the time
 

dh2005

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Jan 25, 2010
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Aww, come on, dude... those numbers are good. How much better can you do in this form factor?
 

Icaras

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Mar 18, 2008
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Personally I would never, ever play a game at non native resolution.
I suspect that a high end 21.5 would handle games better than the high end 27" version. Of course at native resolution.
Haven't found any proper benchmark only this rough test http://www.tested.com/news/the-gaming-capabilities-of-the-new-imacs-gpus/2267/. Doesn't look that great....

Great find and great read! Thank you very much for posting that...

I've been leaning toward the high end 21.5" from the beginning, so looks like I'm sticking to my plan so far...
 

Blake1

macrumors member
Original poster
Feb 17, 2011
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Ish. Games are a little different, as you set the res from within the game, and actually look decent at lower than native most of the time

Makes sense. I was just wondering if there was a setting in the OS or third party software that would do that. Im sure most people wouldnt even bother with that so it wouldn't surprise me if there wasn't.

I have never played games on a 27" screen, so to me it seems almost to big, and if a 21.5" performs better than i would more inclined to get a 21.5. Unless I could reduce display size on the 27" and get great game performance, and use the plus size screen and other hardware upgrades for other task's such as photo and video editing.
 

Blake1

macrumors member
Original poster
Feb 17, 2011
43
0
Personally I would never, ever play a game at non native resolution.
I suspect that a high end 21.5 would handle games better than the high end 27" version. Of course at native resolution.
Haven't found any proper benchmark only this rough test http://www.tested.com/news/the-gaming-capabilities-of-the-new-imacs-gpus/2267/. Doesn't look that great....

Very helpful link, thanks. I would be interested to see what the results were at the native resolution. Although, I have to imagine that even at the 1920x1080 resolution, games would still look pretty solid on a 27" screen. Its hard for me to really know, because I haven't ever seen it. 27" seems pretty large to me. But for someone who is use to console gaming, I might be really impressed with that resolution on that size of monitor.

Just curious, why wouldn't you ever play a game on the non native resolution of the monitor?
 
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