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Flashed GT 640 would be Mojave equivalent of GT 120.

It's even better than GT120 for dual boot, because GT640 should able to work with the latest Nvidia card in Windows 10 without any driver issue.

Update 1: Got a confirmation from Nvidia that the GT640 (most likely including any other Fermi architecture GPU) can work with GTX 1080Ti in Windows 10 up to driver version 391.35
Screen Shot 2018-06-06 at 06.14.13.png
 
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I had a quick look at the GPU drivers everything pre-metal has been purged, interesting NVIDIA fermi drivers are still there so does Fermi actually support metal? i Remember that being a bit debated "back in the day" no NVIDIA drivers newer then kepler tho sadly

Yes, Fermi supports Metal: http://netkas.org/?p=1405

Nvidia – GeForce gtx 4xx and newer
Intel – HD4000 and newer (ivy bridge and newer)
AMD – HD7000 and newer
 
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Yes, Fermi supports Metal: http://netkas.org/?p=1405

Nvidia – GeForce gtx 4xx and newer
Intel – HD4000 and newer (ivy bridge and newer)
AMD – HD7000 and newer

yeah i saw that at the time too

however several people reported while system profiler reported metal support on Fermi, that no metal devices where actually there when they fired up a Metal application.

so im curious if thats changed at some point or what, we need someone with a Quadro 4000 or such to check :)
 
Flashed GT 640 would be Mojave equivalent of GT 120.

Yeah. Looks like I'll have to sell an item first, before spending $130 on that. Or, I could install from a MacBook, to an external drive, and then pop that into the Mac Pro to clone it to the machine's main drive. Annoying extra steps, but totally doable. All I'd need to do is pay about $7 for an enclosure for some random disk.
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I believe you make it too complicated. The GT120 EFI should still work, will still display, but may be just no acceleration for the OS UI. You can still upgrade the firmware with GT120 regardless the firmware is for 10.13 or 10.14. Also, you should able to install 10.14 with just the GT120 installed, unless the installer check for a METAL compatible GPU.

But even if METAL compatible GPU is required for installation. A GT120 + METAL supported GPU combo should still works like the current setup. But just don't expect to use the GT120 for anything once boot to desktop (but it should still display).


True... I was planning to install to an external disk, from a MacBook, and clone the finished product to my Mac Pro's main drive, but I could very well see if the GT 120 can just be coupled with my RX 580. After all, all I need to do is use the GT 120 to boot into the installer. Perhaps, after booted into the installer, I can switch the display cables over to the RX 580? (I hope that works.)
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May be more guarantee will be a real single slot card as well.

There is a single-slot GT 640. I want to make sure, though, that it's truly gonna support Metal. As for using it with Windows, that's another story. (I have an AMD card as my main.) Would be cool to try and see if I can keep it in there and use it for Bootcamp, though: I'd simply switch my display over to DVI and go into the bootdisk-selector. Then, I could switch back to the HDMI input going into my main card. Yeah, that would be nice. Although, first, I gotta just see if I can get Mojave onto this from my GT 120. I really cannot wait until the full release.
 
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I got a response from Apple Developer Support today regarding the recommended Metal-capable graphics cards for the Mac Pro 5,1. They said Apple hasn't yet released recommended GPUs for Mojave and directed me to the current recommended eGPU page. So perhaps Mojave will give us official support for Polaris and Vega cards for the cMP and not just as eGPUs.
 
I got a response from Apple Developer Support today regarding the recommended Metal-capable graphics cards for the Mac Pro 5,1. They said Apple hasn't yet released recommended GPUs for Mojave and directed me to the current recommended eGPU page. So perhaps Mojave will give us official support for Polaris and Vega cards for the cMP and not just as eGPUs.

[fingers crossed emoji]
 
So I’m about to buy a RX580 for my 4,1->5,1 so I should be right?

And should I replace the GT120 or run the RX580 as a second card?
 
Another data point regarding Kepler (GeForce 600 series): The Late-2012 iMac shipped with various Kepler GPUs in factory Apple configurations, and that iMac is definitely getting Mojave.
 
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In case it's helpful, the MBP 15" Late 2013 (11,3) shows the built-in Intel Iris Pro as METAL compatible and the NVIDIA GeForce GT 750M as METAL compatible. Currently running NVIDIA web drivers on this machine.

Both GPUs (if you can call Iris Pro that) show "Metal: Supported, feature set macOS GPUFamily1 v3"
 
In case it's helpful, the MBP 15" Late 2013 (11,3) shows the built-in Intel Iris Pro as METAL compatible and the NVIDIA GeForce GT 750M as METAL compatible.
Xeons don’t tend to have onboard graphics and the consumer CPUs that Apple supports via Metal may be too recent for the cMP.
 
Not trying to be snarky but I'm amazed at how many people are willing to tolerate this behavior from Apple. Especially those who consider themselves professionals.

Apple has stated 10.14 requires a Metal capable graphics card yet the 2010 / 2012 Mac Pros were only sold by Apple with graphics cards which lack metal support. Thus leaving 2010 / 2012 Mac Pro owners to speculate how Apple will resolve this issue.

I know many people love Mac OS but how much are you willing to tolerate before you say enough is enough?
 
Not trying to be snarky but I'm amazed at how many people are willing to tolerate this behavior from Apple. Especially those who consider themselves professionals.

Apple has stated 10.14 requires a Metal capable graphics card yet the 2010 / 2012 Mac Pros were only sold by Apple with graphics cards which lack metal support. Thus leaving 2010 / 2012 Mac Pro owners to speculate how Apple will resolve this issue.

I know many people love Mac OS but how much are you willing to tolerate before you say enough is enough?
Would you be similarly bothered if cMP support simply came to a natural end at macOS 10.13? That is personally what I expected to happen.

Mojave support is a bonus. If the Metal uncertainly is annoying, just make peace with running 10.13 for the remaining life of the machine and ignore Mojave.
 
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Would you be similarly bothered if cMP support simply came to a natural end at macOS 10.13? That is personally what I expected to happen.

Mojave support is a bonus. If the Metal uncertainly is annoying, just make peace with running 10.13 for the remaining life of the machine and ignore Mojave.

I agree, Apple just give cMP users an option to upgrade, not force us to upgrade.

If we are not happy with this option because need new hardware investment, or make things too complicated, or whatever. Then stay at 10.13 and ignore it.

Apple can simply make 10.14 not support cMP at all. But they didn't, this is actually a good move.
 
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