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antonis

macrumors 68020
Jun 10, 2011
2,085
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What percent of the pro-oriented applications can they really take advantage of dual gpus (considering that OS X doesn't support crossfire) ? Is it always totally honest to sum up the computing power of 2 weaker gpus as an excuse against a single more powerfull one ?
 
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AdamSeen

macrumors 6502
Jun 5, 2013
350
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There is no way they are going to put 28nm parts in the Mac Pro. They will wait for 14nm GPUs to be ready.
 

goMac

macrumors 604
Apr 15, 2004
7,663
1,694
Now that we've nearly hit a wall in Moore's law, partial or incremental updates are unlikely to result in significant gains.

Moore's law is slowing, but GPUs are farther behind CPUs, and CPUs are still a ways from hitting a "wall".
 

Ph.D.

macrumors 6502a
Jul 8, 2014
553
479
Is it always totally honest to sum up the computing power of 2 weaker gpus as an excuse against a single more powerfull one ?

No, of course not. I'd put myself in the camp that would prefer a more powerful single GPU. However, one thing is fairly clear: GPUs are taking over more and more compute tasks. If you are going to have dual-something, then at some point dual GPUs may make more sense than dual CPUs. Apple apparently thinks that time has come for "pros."
 

Stacc

macrumors 6502a
Jun 22, 2005
888
353
What percent of the pro-oriented applications can they really take advantage of dual gpus (considering that OS X doesn't support crossfire) ? Is it always totally honest to sum up the computing power of 2 weaker gpus as an excuse against a single more powerfull one ?
Remember that crossfire is a directx11 method of driving graphics with dual gpus. Opencl is perfectly capable of taking advantage of dual gpus in compute workloads.
 

Ph.D.

macrumors 6502a
Jul 8, 2014
553
479
Moore's law is slowing, but GPUs are farther behind CPUs, and CPUs are still a ways from hitting a "wall".

I did say "nearly." I think there's a lot of growth potential in store for GPUs, as there's a lot of room for improvements in architecture. CPUs less so, which is why Intel is getting a little frantic about things like GPU and FPGA integration.
 

koyoot

macrumors 603
Jun 5, 2012
5,939
1,853
Guys, it is like turning the table to take a meal that is on the other side, rather than going around the table to take it.

You want single GPU because your software does not support dual GPU setups, even if dual GPU setup would bring many benefits for workflow. Why not start demanding more from developers? The only application that I have seen to this day that has absolutely the best dual GPU setup management is... Final Cut Pro X, and I do understand how controversial this is. It mostly sees dual GPU setup as one big GPU.
 
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linuxcooldude

macrumors 68020
Mar 1, 2010
2,480
7,232
What percent of the pro-oriented applications can they really take advantage of dual gpus (considering that OS X doesn't support crossfire) ? Is it always totally honest to sum up the computing power of 2 weaker gpus as an excuse against a single more powerfull one ?

Not if both cards exceed the power of the single one. The D700's were more powerful than any single card during that time. The dual D700 were even faster than a single Titan X that was released two years later. The D300-D500 were for different price points and needs.
 
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Mago

macrumors 68030
Original poster
Aug 16, 2011
2,789
912
Beyond the Thunderdome
I still think the GPU apple will not strictly attach to feature size, than actual performance/tdp.

Polaris are Just Ok replacement for D300/D500 a D700 either requires a card more targeted at compute than Pixel rendering, My wish list is it to be an AMD Vega based GPU (not available until Q4 as earliest, Q1'17 more realistic), what Apple will do? delay for ever a nMP or release it now with Polaris and maybe an decent Compute GPU as W8100? I'll opt for W8100 despite being a 28nm gpu or not G700 option yet, leave it empty until Q1'17 and fill with AMD Vega.

Leakers... I don't know why they insist the MP to include dual Fury Nano based GPU, the fury nano is offered at upto 4GB ram, but AMD can offer it at 8GB Ram the parts are available, Personally I don't like the dual fury nano setup, I'll go for D500 if based on Polaris.

Maybe Apple considers VR and AI more important than compute, so they don't care on put a good WS GPU on the Mac Pro, this is what I fear on leakers insistence on Dual Fury as G700 GPU, and Actually isn't the end, as I previously write, is more Likely I'll go for an Dual Polaris, and It's very Likely I''l get later and nVidia eGPU.
 

pat500000

Suspended
Jun 3, 2015
8,523
7,515
I still think the GPU apple will not strictly attach to feature size, than actual performance/tdp.

Polaris are Just Ok replacement for D300/D500 a D700 either requires a card more targeted at compute than Pixel rendering, My wish list is it to be an AMD Vega based GPU (not available until Q4 as earliest, Q1'17 more realistic), what Apple will do? delay for ever a nMP or release it now with Polaris and maybe an decent Compute GPU as W8100? I'll opt for W8100 despite being a 28nm gpu or not G700 option yet, leave it empty until Q1'17 and fill with AMD Vega.

Leakers... I don't know why they insist the MP to include dual Fury Nano based GPU, the fury nano is offered at upto 4GB ram, but AMD can offer it at 8GB Ram the parts are available, Personally I don't like the dual fury nano setup, I'll go for D500 if based on Polaris.

Maybe Apple considers VR and AI more important than compute, so they don't care on put a good WS GPU on the Mac Pro, this is what I fear on leakers insistence on Dual Fury as G700 GPU, and Actually isn't the end, as I previously write, is more Likely I'll go for an Dual Polaris, and It's very Likely I''l get later and nVidia eGPU.
As you mentioned earlier about the last min leak.. It sounds like 500d model would be a better buy.. Wouldn't it?
 

pat500000

Suspended
Jun 3, 2015
8,523
7,515
One thing is for sure: I'm not going to watch a 2 hour keynote only to be disappointed. In other words, I'm not going to watch it! I'll check in after it's over.
Oh I ain't watching too due to time... I will eventually. I want to watch it so that hopefully someone at wwdc could yell z1 workstation at Tim and Phil...see their red faces brighten up like Rudolph the red nose reindeers.
 
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Mago

macrumors 68030
Original poster
Aug 16, 2011
2,789
912
Beyond the Thunderdome
I'm not going to watch a 2 hour keynote only to be disappointed. In other words, I'm not going to watch it! I'll check in after it's over.

Actually the best value part of the keynote is that related to new API, Swift 3, really worth.

And is wise to be ready to be disappointed again by Apple... Aummmmmmm Aummmmm Aummmmmmmmmmmmmmmm
 
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pat500000

Suspended
Jun 3, 2015
8,523
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Actually the best value part of the keynote is that related to new API, Swift 3, really worth.

And is wise to be ready to be disappointed again by Apple... Aummmmmmm Aummmmm Aummmmmmmmmmmmmmmm
Hopefully that rumor comes through.
 

antonis

macrumors 68020
Jun 10, 2011
2,085
1,009
Remember that crossfire is a directx11 method of driving graphics with dual gpus. Opencl is perfectly capable of taking advantage of dual gpus in compute workloads.

Not if both cards exceed the power of the single one. The D700's were more powerful than any single card during that time. The dual D700 were even faster than a single Titan X that was released two years later. The D300-D500 were for different price points and needs.

I know that OpenCL can take advantage of any gpus available, even from a different vendors and of different speeds, but my point is that this does not tell the whole story. At the end of the day, the real question is how easily can someone take advantage of this, compared to having a single, more powerful gpu. Or, to put it differently, if there was an option of choosing between these dual throttled down gpus and a much more powerful single one for 6,1 , how many buyers would they prefer each ?

The point that dual D700s where faster than titan x back then (in some cases), is also a controversial one for the same reasons. Under how many circumstances did D700s really worked combined as one card ? While, on the other hand, having a single gpu, you can be asured that you take advantage of all the muscle you spent your money for.
 

JoeG4

macrumors 68030
Jan 11, 2002
2,875
540
Except those who want high-performance compute instead of gaming. The former is more aligned with the Pro than the latter.

Oh FFS.

I'd happily pay more money for a GPU aimed at gaming instead of high performance compute.

I'm not even going to contest it. As an engineer that gets to use neat hardware and software to make pretty cool stuff, I want to buy a Mac Pro to do some of that.. and play games on.
 

H2SO4

macrumors 603
Nov 4, 2008
5,840
7,112
Oh FFS.

I'd happily pay more money for a GPU aimed at gaming instead of high performance compute.

I'm not even going to contest it. As an engineer that gets to use neat hardware and software to make pretty cool stuff, I want to buy a Mac Pro to do some of that.. and play games on.
This.
I mean would it even be possible for Apple to fit two different cards? So that you can have the best of both worlds.
 

ManuelGomes

macrumors 68000
Dec 4, 2014
1,617
354
Aveiro, Portugal
Who said no Optane so soon?
http://wccftech.com/intel-optane-ssd-memory-roadmap/
Told ya.If nMP comes by year's end we might just see this in it.

http://www.techpowerup.com/223365/intel-optane-client-ssds-to-debut-alongside-kaby-lake-processors

We could see one of these (or two) coming out of the PCH. The PCIe 3 x2 unit would take 4 PCH lanes.
The remaining 4 lanes could either be used for dual GbE and BT/WiFi.
As an alternative, the whole 8 lanes could be switched between 2 Optane SSDs and the GbE, BT and WiFi ports.
That would work.
Next nMP would get the full PCIe 3 x4 Optane SSDs, under the new platform.
Of course, the other alternative would be again a switch on the CPU's 8 free lanes for 3 TB3 controllers and both SSDs.
 
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