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AMD Polaris GPUs Plug and Play in macOS 10.12.6 & 10.13

h9826790 said:
Anyway, Sapphire PULSE Vega 56 also confirmed working good in cMP, but if also consider cost / performance ratio, or power draw issue, etc. Then I still believe RX580 is a better choice at this moment.
Click to expand...

Thanks again for all the help. I went ahead and purchased the reference Sapphire RX580 from Amazon and the Dual 6 pin to 8 pin y-adapter cable. I'm looking forward to having Display Port 1.2, as it has been annoying using a 4K monitor with the AMD 7950 as I have to constantly change the MST to secondary during boot up and then having to reverting back to off.

Reflecting now on my upgraded 2010 6 core Mac Pro with the dual 7950s (which I acquired in the Fall of 2014) I've been thrilled how well it cuts 4K video in Final Cut Pro X. No complaints at all. It is a heck of great machine.
 
Chung123 said:
Thanks again for all the help. I went ahead and purchased the reference Sapphire RX580 from Amazon and the Dual 6 pin to 8 pin y-adapter cable. I'm looking forward to having Display Port 1.2, as it has been annoying using a 4K monitor with the AMD 7950 as I have to constantly change the MST to secondary during boot up and then having to reverting back to off.

Reflecting now on my upgraded 2010 6 core Mac Pro with the dual 7950s (which I acquired in the Fall of 2014) I've been thrilled how well it cuts 4K video in Final Cut Pro X. No complaints at all. It is a heck of great machine.
Click to expand...

If your 7950 is the Mac Edition card (or flashed card), the problem is the Mac EFI is not compatible to 4K 60Hz. The display port standard itself is fine.

As long as you boot from the PC / UEFI BIOS, you shouldn't need to touch the monitor's settings.

Yeah, I ran dual 7950 before. I still remember how well it is in FCPX.
 
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h9826790 said:
If your 7950 is the Mac Edition card (or flashed card), the problem is the Mac EFI is not compatible to 4K 60Hz. The display port standard itself is fine.

As long as you boot from the PC / UEFI BIOS, you shouldn't need to touch the monitor's settings.

Yeah, I ran dual 7950 before. I still remember how well it is in FCPX.
Click to expand...

So just got this RX580 installed and I'm very happy. (I got the Y-adapter cable - dual 6 pin to 8 pin from GutsParker on Amazon-- no issues despite some of the reviews).

So I retimed the Bruce X challenge:

Previously when I had the Dual 7950 in FCPX 10.2.3/ Mac OS 10.11.13 in Feb 2016: The time was 23.60, 15.32, 15.82, Avg of 18.24 seconds

This morning I did the test with my remaining Single 7950 in FCPX 10.4.2 and Mac OS 10.13.4. The time was: 50.32, 48, Avg of 49.16 seconds

After putting in the Sapphire RX 580 Pulse, FCPX 10.4.2 and Mac OS 10.13.4. The times were 23.18, 20.77, 21.82. Avg of 21.92 seconds

So I'm very happy that with a single card I'm getting the same results more or less as dual cards, plus nice support for my Dell P2715Q 4K monitor.

Which now begs the question.. if I win the lottery, I will add a second RX580 after doing the famous Pixlas Mod. (Belay that, I'm not sure if the Mac can support Dual RX580 even with the mod) But it would make little sense for me. (diminishing returns).

Thanks again for the great advice.

Geekbench Compute score: https://browser.geekbench.com/v4/compute/2361967

IMG_9903.jpg IMG_9904.jpg IMG_9906.jpg
 

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2 week update:

The Sapphire RX580 Pulse has been working like a champ in the Mac Pro 5,1 and Dell P2715Q. It has been flawless. It is such a relief not having to deal with the boot issues with the 7950 and 4K monitors. (When it freaked out in the past, I had to shut down reset the SMC and reset PRAM etc.)

Performance has been phenomenal.
 
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Every once in a while in Windows 10, my screen will go black for about a second and come right back on. It has happened only like twice since I got the Sapphire PULSE RX 580. I wasn't gaming or anything, just idle. This morning it happened right after I woke the computer up from sleep. The screen came on, I went to start using it, then the screen went black and came back on.

It's making me paranoid. I'm using the 16AWG dual mini 6 pin to 8 pin cable to power it.
 
Did anyone try 10.4 mojave with the RX 580? I have an original 2010 MP and I need to upgrade my GPU to a metal capable GPU in order to upgrade... Is 4K also working?
 
sanderss said:
Did anyone try 10.4 mojave with the RX 580? I have an original 2010 MP and I need to upgrade my GPU to a metal capable GPU in order to upgrade... Is 4K also working?
Click to expand...
Sapphire PULSE RX580 8GB works beautifully in Mojave. I have no qualms in recommending it as the best card for Mojave.
 
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sanderss said:
Did anyone try 10.4 mojave with the RX 580? I have an original 2010 MP and I need to upgrade my GPU to a metal capable GPU in order to upgrade... Is 4K also working?
Click to expand...
Squuiid said:
Sapphire PULSE RX580 8GB works beautifully in Mojave. I have no qualms in recommending it as the best card for Mojave.
Click to expand...

I think it's a bit more than "works beautifully", the video hardware decoding also activated. I wonder if any other graphic card has this function on the cMP yet. :D
 
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Chung123 said:
So just got this RX580 installed and I'm very happy. (I got the Y-adapter cable - dual 6 pin to 8 pin from GutsParker on Amazon-- no issues despite some of the reviews).

So I retimed the Bruce X challenge:

Previously when I had the Dual 7950 in FCPX 10.2.3/ Mac OS 10.11.13 in Feb 2016: The time was 23.60, 15.32, 15.82, Avg of 18.24 seconds

This morning I did the test with my remaining Single 7950 in FCPX 10.4.2 and Mac OS 10.13.4. The time was: 50.32, 48, Avg of 49.16 seconds

After putting in the Sapphire RX 580 Pulse, FCPX 10.4.2 and Mac OS 10.13.4. The times were 23.18, 20.77, 21.82. Avg of 21.92 seconds

So I'm very happy that with a single card I'm getting the same results more or less as dual cards, plus nice support for my Dell P2715Q 4K monitor.

Which now begs the question.. if I win the lottery, I will add a second RX580 after doing the famous Pixlas Mod. (Belay that, I'm not sure if the Mac can support Dual RX580 even with the mod) But it would make little sense for me. (diminishing returns).

Thanks again for the great advice.

Geekbench Compute score: https://browser.geekbench.com/v4/compute/2361967

View attachment 761050 View attachment 761051 View attachment 761052
Click to expand...
If you don’t get a second RX 580 then you have lots of empty PCIe slots begging for a USB3.0 card, 10GbE and SSD there :D

http://www.sonnettech.com/product/allegroprousb3pcie.html

http://www.sonnettech.com/product/solo10g-pcie-card.html

https://www.kingston.com/datasheets/SHPM2280P2_en.pdf
 
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Synchro3 said:
You mean HEVC decoding?
Click to expand...

Yes

MarkC426 said:
What does this actually mean, in laymans terms.....:confused:?
Click to expand...

Means the cMP now can use the GPU to play high bitrate HEVC video smoothly.

Without GPU hardware decode. Even stress all CPU cores to 100%, still very hard to smoothly play high bitrate HEVC video.

If hardware encoding is enabled as well. Then the export time can easily be few times faster, and the CPU still very free to do something else.

This will be very useful for video editing. Without hardware decoding / encoding. It's almost impossible to direct edit HEVC video. But with this function, users can import a HEVC video directly to the editing software, no transcoding require, and still able to edit it. This can save quite a bit of transcoding time, also lots of storage space (if transcode to ProRes 422, it will require lots of space as temporary storage).
 
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You know what's funny? My Sapphire PULSE RX 580 8GB constantly crashes macOS Sierra, but it's perfectly fine in High Sierra. No idea why it would crash in Sierra considering Sierra has driver support for the 580, but since it works in High Sierra, I chalked it up to a software / driver problem in Sierra that is fixed in High Sierra.
 
Jayson A said:
You know what's funny? My Sapphire PULSE RX 580 8GB constantly crashes macOS Sierra, but it's perfectly fine in High Sierra. No idea why it would crash in Sierra considering Sierra has driver support for the 580, but since it works in High Sierra, I chalked it up to a software / driver problem in Sierra that is fixed in High Sierra.
Click to expand...

The driver in 10.12.6 is the very very first driver available for RX580 (natively), not mature enough.
 
Jayson A said:
You know what's funny? My Sapphire PULSE RX 580 8GB constantly crashes macOS Sierra, but it's perfectly fine in High Sierra. No idea why it would crash in Sierra considering Sierra has driver support for the 580, but since it works in High Sierra, I chalked it up to a software / driver problem in Sierra that is fixed in High Sierra.
Click to expand...
That’s bizarre...I have had NO problems in Sierra.
Maybe it’s certain software apps your running which push it.
 
MarkC426 said:
That’s bizarre...I have had NO problems in Sierra.
Maybe it’s certain software apps your running which push it.
Click to expand...

That's the thing. I formatted my drive and did a fresh Sierra install with absolutely no third party anything and it still crashed. Seems to happen most when I'm using Safari... not really graphically demanding.
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Chung123 said:
So just got this RX580 installed and I'm very happy. (I got the Y-adapter cable - dual 6 pin to 8 pin from GutsParker on Amazon-- no issues despite some of the reviews).

So I retimed the Bruce X challenge:

Previously when I had the Dual 7950 in FCPX 10.2.3/ Mac OS 10.11.13 in Feb 2016: The time was 23.60, 15.32, 15.82, Avg of 18.24 seconds

This morning I did the test with my remaining Single 7950 in FCPX 10.4.2 and Mac OS 10.13.4. The time was: 50.32, 48, Avg of 49.16 seconds

After putting in the Sapphire RX 580 Pulse, FCPX 10.4.2 and Mac OS 10.13.4. The times were 23.18, 20.77, 21.82. Avg of 21.92 seconds

So I'm very happy that with a single card I'm getting the same results more or less as dual cards, plus nice support for my Dell P2715Q 4K monitor.

Which now begs the question.. if I win the lottery, I will add a second RX580 after doing the famous Pixlas Mod. (Belay that, I'm not sure if the Mac can support Dual RX580 even with the mod) But it would make little sense for me. (diminishing returns).

Thanks again for the great advice.

Geekbench Compute score: https://browser.geekbench.com/v4/compute/2361967

View attachment 761050 View attachment 761051 View attachment 761052
Click to expand...

Can the Mac Pro handle Vega cards?
 
Hi, would anyone happen to know of a UK supplier for a dual 6pin female to 8pin male adaptor? I seem to be stuck in an endless circle of finding dual 6+2pin male to 8pin female adaptors. Any help would be appreciated.
 
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