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iMac 5K GPU Performance

Melodeath said:
Nice! Do you have the Ultra pack installed? I read it needed 6GB VRAM, but the 295 only has 4GB. Looks like it still worked nicely?

I'm also wondering about noise. That's the one thing I don't like about my 2010 MBP. The fans are so loud. They're fine at 2k RPM, but rarely are they at 2,000RPM!
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Yep, the Ultra pack was a DLC. Have that installed. But I honestly don't know if it's loading those textures.

But I do know it looks awesome! and it plays smooth.

as for gaming on Mac laptops, I've given up on those. I've seen with games on Steam and on OSX and OpenGL vs DirectX on Win, OpenGL loses. So I just bootcamp into Win7 for some light gaming fix.

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omenatarhuri said:
Well, the processors are standard Intel CPUs that have been out for a while. Maybe you can find something by looking directly for CPU comparison.

I believe they are i7 4790 and i5 4690 if I don't recall wrong.
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Problem is no 5K display to tax the base model like specs. Which is what he is looking for I guess.

I do agree with that. Will be nice to have some numbers from the base model as a comparison.
 
omenatarhuri said:
Well, the processors are standard Intel CPUs that have been out for a while. Maybe you can find something by looking directly for CPU comparison.

I believe they are i7 4790 and i5 4690 if I don't recall wrong.
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Oh I have looked at the benchmarks for the components themselves and made some assumptions, but what I am saying is I would like to see numbers when the parts are put together and in the same architecture as I am considering.
Comparing it to my current home-built rig (i7-3770/16GB RAM/120GB SSD/AMD HD5770) isn't a good comparison as its 2 different architectures and 2 different operating systems (even though I would run 99% similar software)
 
habeebhashim said:
Problem is no 5K display to tax the base model like specs. Which is what he is looking for I guess.

I do agree with that. Will be nice to have some numbers from the base model as a comparison.
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I've posted Unigine benchmark and Luxmark numbers for M290X. It does take time to do more elaborate benchmarks. I'm hoping more people will chime in over time.
 
habeebhashim said:
Problem is no 5K display to tax the base model like specs. Which is what he is looking for I guess.

I do agree with that. Will be nice to have some numbers from the base model as a comparison.
Click to expand...

That is exactly what I am looking for. Almost all the reviews I have seen are the maxed out models they have been sent. Yes I can go to the Apple store and play with it there I suppose. Not sure they would like me resetting the system to factory, and then installing/running benchmarks for a couple hours *lol*
 
so, it is or it is not 295x faster than 780m?
because its hard for me to think that the 295x is faster than Geforce 780M
 
Serban said:
so, it is or it is not 295x faster than 780m?
because its hard for me to think that the 295x is faster than Geforce 780M
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Did you mean to write 'it's hard for me to think that the 295x isn't faster than Geforce 780M'?

Because it definitely should be and the benchmarks you have seen in this thread do tend to show that, but there have been a couple of anomalies which need to be ironed out.
 
You know what amazes me most?

That those games run completely flawlessly at that resolution, on OSX. Which is a lot slower than Windows in terms of Graphical power. In Windows it should be way better/faster.

Hopefully Mantle/Metal soon will solve the problems.
 
Is it just for me that my windows partition doesent recognize the m295x? its just listed as a generic blabalbla with 256 mb memory....
 
koyoot said:
You know what amazes me most?

That those games run completely flawlessly at that resolution, on OSX. Which is a lot slower than Windows in terms of Graphical power. In Windows it should be way better/faster.

Hopefully Mantle/Metal soon will solve the problems.
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It is under Yosemite and Blizzard games are well made very polish. Others games crash a lot after 5-10 min

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steve23094 said:
Diablo 3 gameplay in 5k and 1440p at various detail settings.
https://www.youtube.com/watch?v=mW8rAsAC5JU

And Starcraft 2.
https://www.youtube.com/watch?v=fepmW6gQmtI
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thats a little bit disappointed because on maveriks with 780m in starcraft 2 on 1440p max i get at least 90 fps at the beginning of the game and here i see 40 fps...what the hell !?
 
macmee said:
Apparently the GPU overheats: https://forums.macrumors.com/threads/1810017/
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Getting hot and overheating are two different things. My kettle regularly reaches 100 º Celsius, but it never overheats.

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omenatarhuri said:
Actually ArsTechnica just released their review and they seem to say everything looks great at 2560x1440 and even the standard 4K resolution (because Windows 8.1 does not support 5K).
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Of course it looks great. It works exactly like the retina resolution magic on the rMBP. :)
 
Serban said:
It is under Yosemite and Blizzard games are well made very polish. Others games crash a lot after 5-10 min

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Click to expand...
Doesn't matter how good they are polished. OSX is lacking graphics power, cause of the drivers. And its still 5K resolution. 14.7 MLN Pixels. That requires a lot of horsepower under the hood.
Serban said:
thats a little bit disappointed because on maveriks with 780m in starcraft 2 on 1440p max i get at least 90 fps at the beginning of the game and here i see 40 fps...what the hell !?
Click to expand...

You sure, you are talking about 5K and not 1440p? ;)
 
in the video...he changed into 1440p starcraft 2 and posted on screen 40-50fps. Look at 1.23 in starcraft 2 video
 
I think it depends on how GPUs scale performance with resolution. Tonga as we can see is better, way better in Ultra high resolutions. Nvidia GPUs may be optimized for lower(calling 1440p reso a low-res is... odd. But shows what scale we are talking about).
 
so with 295x you can't game at 1440p but also can't at 5k also...
at least with 780m you can at 1440p some light demanding games at 60fps like starcraft 2 diablo 3 etc
 
780M-at 1440p high details you can play at 60 fps diablo 3 etc
M295x-at 1440p high details you play at 40 fps diablo 3 etc
 
Reading heat and noise.

When playing games on the iMac, you need to do two things:
1: Use headphones (I like Beyerdynamic DT770 Pro 85ohm)
2: Run the fan at a higher static speed (2250-2450 rpm, even 2500 if very hot ambient temperature)

I have a 680MX, which is 120W I think, and no problems here. I even overclock the card +250/+375 everytime I game.
 
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