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Old Jul 29, 2010, 06:15 PM   #151
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Originally Posted by flopticalcube View Post
IMO, you are better going for an i7 refurb at $1699. 27" screen, quad-core i7 and an HD4850 w/ 512MB VRAM.
I'd still pick the Core i5 750 one for less.
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Old Jul 29, 2010, 06:24 PM   #152
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I'd still pick the Core i5 750 one for less.
That is also a good option, especially since the CPU is socketed for future goodness.
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Old Jul 29, 2010, 06:30 PM   #153
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Originally Posted by flopticalcube View Post
That is also a good option, especially since the CPU is socketed for future goodness.
That's up to the use but the gains from going to the Core i7 860 aren't that great.

Things are only a little different today with the Core i7 870 now at the $296 price point per 1000.
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Old Jul 29, 2010, 06:39 PM   #154
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They're both mxm cards, but you'd need to get the osx software updates that apprently are only given to those models of iMacs, that have all the drivers for the mobility 5850.
I wonder if the heat sinks line up exactly them same?
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Old Jul 29, 2010, 06:39 PM   #155
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how necessary is the DX11 capabilities of 5850 vers DX10 of 4850? Is that much of a factor for OSX as it's for Windows? Hopefully Barefeats.com will have their GPU tests done soon. I'm waiting on some figures to see if I should buy the refurb or a new iMac. Also, interested in OCing ability of the 5850 to get it close to a mobility 5870.
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Old Jul 29, 2010, 07:23 PM   #156
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Originally Posted by henrikrox View Post
space, heat, power consumption etc.
noone cares about power consumption it's a desktop, they can easily fit the card in there, many laptop has fullsized graphic cards...


Quote:
What, are you a hoping for a radeon 5970 or what?
yes


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And can you tell the difference between 60 or 100 fps in a game.
more like 20 or 40 fps, and yes.
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Old Jul 29, 2010, 07:36 PM   #157
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many laptop has fullsized graphic cards...
Really? Name one.
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Old Jul 29, 2010, 07:52 PM   #158
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IMO, you are better going for an i7 refurb at $1699. 27" screen, quad-core i7 and an HD4850 w/ 512MB VRAM.
I'd love a 27-inch, but can't fit it on my desk. I'd just buy a new 27-incher if I could fit it on my desk.

I know what you mean though. Those refurb 27-incher prices are fantastic. Of course, I'd probably get a yellow screen (I went through 3 brand new 27-inchers before and gave up).
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Old Jul 29, 2010, 08:06 PM   #159
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noone cares about power consumption it's a desktop, they can easily fit the card in there, many laptop has fullsized graphic cards...



yes




more like 20 or 40 fps, and yes.
You need a PSU to drive all these stuff. But you are just trolling..
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Old Jul 29, 2010, 08:13 PM   #160
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I'd love a 27-inch, but can't fit it on my desk. I'd just buy a new 27-incher if I could fit it on my desk.

I know what you mean though. Those refurb 27-incher prices are fantastic. Of course, I'd probably get a yellow screen (I went through 3 brand new 27-inchers before and gave up).
Completely understand. I really wish Apple had more choices in the 21.5" model as not everyone can fit (or wants) that huge 27" screen, even if they could afford the cost.
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Old Jul 29, 2010, 08:30 PM   #161
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Whatever the case, for me it is a major upgrade. I'm running on a PowerBook G4. I can hardly play pong.
Dude, you could take over he world with that thing.
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Old Jul 29, 2010, 11:13 PM   #162
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I forgot, are we sure the 5850 in the iMac uses GDDR5 memory?
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Old Jul 29, 2010, 11:23 PM   #163
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I forgot, are we sure the 5850 in the iMac uses GDDR5 memory?
Yes. From Apple's website:
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ATI Radeon HD 5750 graphics processor with 1GB of GDDR5 memory
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Old Jul 29, 2010, 11:24 PM   #164
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Yes. From Apple's website:
Ah thank you!
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Old Jul 29, 2010, 11:27 PM   #165
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I forgot, are we sure the 5850 in the iMac uses GDDR5 memory?
of course, u did not see the GPU-Z screenshot?
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Old Jul 29, 2010, 11:32 PM   #166
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GDDR5 is a huge benefit for modern day gpus, because it effectively doubles your memory bandwidth, no matter the other stats involved. In reality, it should be called QDR, but I guess DDR5 was used for simplicity. DDR1-4 are all double data rate, while DDR5 is effectively quad data rate. So it's obvious why notebook check would put the mobility 5850 model with GDDR3 memory at a lower spec than mobility 4850.
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Old Jul 29, 2010, 11:49 PM   #167
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GDDR5 is a huge benefit for modern day gpus, because it effectively doubles your memory bandwidth, no matter the other stats involved. In reality, it should be called QDR, but I guess DDR5 was used for simplicity. DDR1-4 are all double data rate, while DDR5 is effectively quad data rate. So it's obvious why notebook check would put the mobility 5850 model with GDDR3 memory at a lower spec than mobility 4850.
+1,
no matter what other people say, my experience from laptops with 5850m 1G GDDR5 (OC a little) is almost as powerful as 5870m. and 5870m is the most powerful GPU could be fit in iMac under a reasonable TDP for now. Therefore, i will be happy to buy the new iMac.
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Old Jul 30, 2010, 02:36 AM   #168
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+1,
no matter what other people say, my experience from laptops with 5850m 1G GDDR5 (OC a little) is almost as powerful as 5870m. and 5870m is the most powerful GPU could be fit in iMac under a reasonable TDP for now. Therefore, i will be happy to buy the new iMac.
That's because 5850 is just slightly underclock 5870 It's only 75MHz difference (625MHz vs 700MHz) IIRC
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Old Jul 30, 2010, 02:45 AM   #169
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Yeah what hellhammer said. The mobility 5850 is just an underclocked desktop 5770. If apple were serious about giving their customers even better graphics, they would have overclocked the mobility 5850 20-30% from factory defaults. The iMac certainly has the cooling ability for it too, but there again Apple values low fan speeds and low sound output over high amounts of cooling.
"but there again Apple values low fan speeds and low sound output over high amounts of cooling." - I do this as well. I prefer a silent computer over +10% FPS when playing games.

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noone cares about power consumption it's a desktop, they can easily fit the card in there, many laptop has fullsized graphic cards...
I care. High consumption = more heat = more noise = annoyed user (plus more expensive electric bills).

No laptops have full sized desktop graphics chips as far as I know.
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Old Jul 30, 2010, 03:02 AM   #170
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That's because 5850 is just slightly underclock 5870 It's only 75MHz difference (625MHz vs 700MHz) IIRC
$400 for 5850, vs $506 for the 5870 - these are australian prices comparing the same Asus card. if the only difference is 75MHz then WHY THE HELL is it another $100? thats a major rip. they are both GDDR5, both have 1GB and all have the same ports.
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Old Jul 30, 2010, 03:08 AM   #171
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$400 for 5850, vs $506 for the 5870 - these are australian prices comparing the same Asus card. if the only difference is 75MHz then WHY THE HELL is it another $100? thats a major rip. they are both GDDR5, both have 1GB and all have the same ports.
Those are desktop. Desktop 5870 has 1600 CPUs and 5850 has 1440 so in desktops, it's not just a MHz increase. 5870 has 125MHz higher core clock as well (725MHz vs 850MHz). In mobilites, it's just a MHz difference as both have 800 CPUs.
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Old Jul 30, 2010, 03:11 AM   #172
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Originally Posted by Hellhammer View Post
Those are desktop. Desktop 5870 has 1600 CPUs and 5850 has 1440 so in desktops, it's not just a MHz increase. 5870 has 125MHz higher core clock as well (725MHz vs 850MHz). In mobilites, it's just a MHz difference as both have 800 CPUs.
ok that makes sense. are you aware of the 1k price difference between 5850m and 5870m ?
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Old Jul 30, 2010, 03:53 AM   #173
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That's because 5850 is just slightly underclock 5870 It's only 75MHz difference (625MHz vs 700MHz) IIRC
yeah,u got the point.
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Old Jul 30, 2010, 04:57 AM   #174
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I dont really understand all this complaining about Apples choice of GPU. Because when we talk about how good the performance is in the windows world with the same GPU everyone is thinking its great, its when we use it under OS X we all get angry.

As long as the GPU is running all the newest game at native resolution at high or ultra settings in windows but not in OS X what we need to be angry about is the drivers and the fundamental graphics handling in OS X.

I would rather apple, ati and nvidia got their brains together making drivers and getting OS X handling 3d as it should than them having to pump out the heaviest graphics card using a nuclear plant each for power just to be somewhere close to their pc-counterparts.

They need to take the problem at the roots not compensate for it.
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Old Jul 30, 2010, 08:34 AM   #175
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I dont really understand all this complaining about Apples choice of GPU. Because when we talk about how good the performance is in the windows world with the same GPU everyone is thinking its great, its when we use it under OS X we all get angry.

As long as the GPU is running all the newest game at native resolution at high or ultra settings in windows but not in OS X what we need to be angry about is the drivers and the fundamental graphics handling in OS X.

I would rather apple, ati and nvidia got their brains together making drivers and getting OS X handling 3d as it should than them having to pump out the heaviest graphics card using a nuclear plant each for power just to be somewhere close to their pc-counterparts.

They need to take the problem at the roots not compensate for it.
Very well said. Totally agree, it's all about the poor OpenGL implementation in OS X together with outdated drivers. To begin with I would love to at least get the same OpenGL performance as Linux.
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