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Thats exactly my point. Throwing GTX 1080 plus 7700K, or 6700K is best thing you can do right now, if you want "everything", and not waste your money.

GTA V benchmark with my computers. GTX Titan X and GTX 980 Ti have almost same performance.

An ancient W3690 CPU vs a brand-new I7-7700K (no OC).

Mac Pro, W3690, GTX Titan X, 3840 x 2160:
Frames Per Second (Higher is better) Min, Max, Avg
Pass 0, 4.958900, 63.580238, 54.768223
Pass 1, 23.390808, 62.563705, 49.325378
Pass 2, 17.110262, 62.137764, 50.314827
Pass 3, 22.398212, 63.905094, 56.855930
Pass 4, 18.857500, 76.975700, 51.869888

I7-7700K-PC, GTX 980 Ti, 3840 x 2160:
Frames Per Second (Higher is better) Min, Max, Avg
Pass 0, 10.389605, 63.993988, 57.520519
Pass 1, 18.979158, 62.567760, 54.158085
Pass 2, 33.319527, 62.600224, 52.205956
Pass 3, 38.913189, 63.628654, 58.414955
Pass 4, 18.580648, 99.879868, 57.458874

I can't see a real CPU bottleneck, not @ 4K. The Mac Pro 5,1 makes it excellent.
 

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The 1080 in my Mac Pro absolutely flies when running Doom at 2K res, despite the CPU. Yes, maybe it is restricted a little but it still performs like a beast.
Assuming the drivers for macOS are ok there is no doubt this will be far superior to a 680.
 
Are you guys using your Mac Pros to play games?

I'd think all the game benchmarks have very little relevance to Resolve/FCPX/TurbulenceFD/Octane/whatever you need compute for.

In many situations the CPU will sit idle while the gfx cards computes like crazy.

That is at least what I'd be interested in. We'll see how well stuff works soon enough.
 
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Sorry for assuming you were bashing NVIDIA. You are correct that the MP5,1 CPUs are really too slow to fully unleash the power of a 1080 or a 1080 Ti, but those will work great in a modern Hackintosh.
It really depends on the application. For some jobs we see the CPUs at 10% to 20% while all GPUs are pegged at 100%.

Other times, the CPUs are all 100% with GPU utilization in the teens.

It depends on the balance of load between CPU and GPU - not a simple "cMP is too slow" rule.
 
It's happening
382.gif

http://wccftech.com/nvidia-pascal-drivers-beta-for-mac/
 
GTA V benchmark with my computers. GTX Titan X and GTX 980 Ti have almost same performance.

An ancient W3690 CPU vs a brand-new I7-7700K (no OC).

Mac Pro, W3690, GTX Titan X, 3840 x 2160:
Frames Per Second (Higher is better) Min, Max, Avg
Pass 0, 4.958900, 63.580238, 54.768223
Pass 1, 23.390808, 62.563705, 49.325378
Pass 2, 17.110262, 62.137764, 50.314827
Pass 3, 22.398212, 63.905094, 56.855930
Pass 4, 18.857500, 76.975700, 51.869888

I7-7700K-PC, GTX 980 Ti, 3840 x 2160:
Frames Per Second (Higher is better) Min, Max, Avg
Pass 0, 10.389605, 63.993988, 57.520519
Pass 1, 18.979158, 62.567760, 54.158085
Pass 2, 33.319527, 62.600224, 52.205956
Pass 3, 38.913189, 63.628654, 58.414955
Pass 4, 18.580648, 99.879868, 57.458874

I can't see a real CPU bottleneck, not @ 4K. The Mac Pro 5,1 makes it excellent.
Switch the cards and play at 1080.
 
GTA V benchmark with my computers. GTX Titan X and GTX 980 Ti have almost same performance.

An ancient W3690 CPU vs a brand-new I7-7700K (no OC).

Mac Pro, W3690, GTX Titan X, 3840 x 2160:
Frames Per Second (Higher is better) Min, Max, Avg
Pass 0, 4.958900, 63.580238, 54.768223
Pass 1, 23.390808, 62.563705, 49.325378
Pass 2, 17.110262, 62.137764, 50.314827
Pass 3, 22.398212, 63.905094, 56.855930
Pass 4, 18.857500, 76.975700, 51.869888

I7-7700K-PC, GTX 980 Ti, 3840 x 2160:
Frames Per Second (Higher is better) Min, Max, Avg
Pass 0, 10.389605, 63.993988, 57.520519
Pass 1, 18.979158, 62.567760, 54.158085
Pass 2, 33.319527, 62.600224, 52.205956
Pass 3, 38.913189, 63.628654, 58.414955
Pass 4, 18.580648, 99.879868, 57.458874

I can't see a real CPU bottleneck, not @ 4K. The Mac Pro 5,1 makes it excellent.
You are getting GPU bottleneck. Not CPU bottleneck.

GTX 1080 anyway will be BNecked even in 4K with the CPUs from 5.1. Yes it will be faster than GTX 980 Ti, but will never achieve its full potential. If you have MP 5.1, why not just buy GTX 1070, instead? The same effect you will get, for less.
 
You are getting GPU bottleneck. Not CPU bottleneck.

GTX 1080 anyway will be BNecked even in 4K with the CPUs from 5.1. Yes it will be faster than GTX 980 Ti, but will never achieve its full potential. If you have MP 5.1, why not just buy GTX 1070, instead? The same effect you will get, for less.

These results show there are still gains to be made in the classic mac pro with a GTX 1080 over other lesser GPUs. At high resolutions most games are going to be held back by GPU power, not CPU power. Maybe its not reaching its "full potential" but there are certainly benefits if you are still running a cMP.
 
These results show there are still gains to be made in the classic mac pro with a GTX 1080 over other lesser GPUs. At high resolutions most games are going to be held back by GPU power, not CPU power. Maybe its not reaching its "full potential" but there are certainly benefits if you are still running a cMP.
Are those gains worth the money invested in GPU for Mac Pro?

No. But its not my job to tell anyone this. If anyone wants to put the cash in the toilet, they are free to do so.
 
Just forget about cMP and think eGPU until the next Mac Pro arrives. cMP won't legitimately be able to install any future macOS which is where APIs will be mature enough for best graphics performance and have decent graphics drivers.
 
Whelp, congrats on the Pascal drivers! :)

Nvidia might be making a play for the new new Mac Pro too. Especially if it ships with PCIe slots.

That, of course, is the really good news. For now, I'm going to keep my 7970 MVC, but it is the best indication yet that PCIe is not dead in the mac.
 
With a bit of luck cMP (2012 5,1) gets Mac OS support until 2019 (seven years from release date).

And Windows 10 support until 2025.
 
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I'm getting out anyway, but personally my guess is that we'll see at least one more version of OS X compatible with 5,1.

Apple just got done making a big mea culpa to their Mac Pro customers and with their promise of renewed focus for Pro users. I don't see them then suddenly throwing any more of remaining faithful under the bus for no good reason.
 
The MacPro4,1 was the last system to ship with the NVIDIA Tesla family of GPUs (i.e. the GT 120). The MacPro5,1 had an AMD 5770 by default, and the next NVIDIA GPU to be used was Kepler. You'll notice that the Tesla driver was split out into a separate set of binaries a few OSes ago, and I suspect that it'll be gone in 10.13. I also suspect that this is the reason the MP4,1 was deprecated but the MP5,1 was not, since the Tesla driver did not support Metal etc.
 
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I just bought a Gigabyte GTX 1080 G1 Gaming 8G card from a sub vendor @ Amazon for $490 bux. That's close to GTX 1070 territory! I'm having it dropped shipped directly to MVC for EFI flashing. Told him to hold it until after the web driver update is released and his EFI is perfected. One 8 pin connector is GREAT!

Lou
 
One 8 pin connector is GREAT!Lou
Yep, this is why I rate the 1080 a better fit in the cMP than a Ti card. Ti's tend to be the same architecture but with more demanding power requirements, albeit offering somewhat higher performance.
A 1080 is a simple drop-in in a cMP. A 1080Ti requires a bit more thinking power wise.
 
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