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AMD Radeon Performance Enhanced SSDT

Joined
Mar 12, 2011
Messages
3
Motherboard
GIGABYTE B450M S2H
CPU
RYZEN 1600 AF
Graphics
AMD RX580
Thanks for the very interesting work... I just tried out the SSDT for RX580, and got the following results (before and after sleep)...

Before SSDT:

OpenCL:
View attachment 491769


Metal:

View attachment 491770


After SSDT:

OpenCL:

View attachment 491771

Metal:

View attachment 491772

So overall, a very mediocre increase in performance... but GPU die temp has come down anywhere from 5c to 10c, which is a real achievement!

Hope someone finds this info useful. PS. Using iMacPro1,1 SMBIOS without agdpmod=pikera, Sapphire Pulse RX 580 8GB

I have same card. Can you share your picture of tablesignature part? I'm not sure did right that part. Below is mine and is that right?
 

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Joined
Mar 12, 2011
Messages
3
Motherboard
GIGABYTE B450M S2H
CPU
RYZEN 1600 AF
Graphics
AMD RX580
Do i need with amd ryzen cpu and Catalina 10.15.7? Can anyone answer this question and above?
 
Joined
Jan 4, 2015
Messages
354
Motherboard
Gigabyte Z390 Designare
CPU
i7 9700K
Graphics
RX 560
Mac
  1. MacBook Pro
Thanks for the very interesting work... I just tried out the SSDT for RX580, and got the following results (before and after sleep)...

Before SSDT:

OpenCL:
View attachment 491769


Metal:

View attachment 491770


After SSDT:

OpenCL:

View attachment 491771

Metal:

View attachment 491772

So overall, a very mediocre increase in performance... but GPU die temp has come down anywhere from 5c to 10c, which is a real achievement!

Hope someone finds this info useful. PS. Using iMacPro1,1 SMBIOS without agdpmod=pikera, Sapphire Pulse RX 580 8GB
RX580 here too (MSI)

Slight improvement with OPENCL (LuxMark and GB4) but no decreased power consumption or lower temp. Please note that I modified the SSDT for my custom config: Dayman and no WEG (it makes iTunes crashes).

As someone said earlier, RX series were probably already well tweaked for MacOS.

**EDIT: silly me, I've put the SSDT on my main EFI instead of my USB test stick without noticing so, in fact, results were slightly better without the SSDT (the reverse)...

Maybe it's because I modified for Dayman and don't use WEG.

Thanks for the efforts anyway!
 
Last edited:
Joined
Apr 2, 2013
Messages
30
Motherboard
Gigabyte Z490 Aorus Pro AX
CPU
i9-10850K
Graphics
Vega 64
Mac
  1. MacBook Pro
Using 20,2 Smbios with my config work best: gigabyte z490 with vega 64 nitro+. And on last Catalina.
With No SSDT I got metal : 58336 and openCL : 56184
With your SSDT metal: 83407. And OpenCL : 66590
And after sleep, with SSDT metal : 84163. OpenCl : 77945
So very effective.
Unfortunatly for me, with the SSDT, once The fans begin to turn, they never stop.
I don't use DAPGM.kext as I got native power managment there.
Is there somthing to do about the fans?



Edit: After few tweaks with mattystonnie vega SSDT, and puting back the old VGtab.kext (no more fan issue with this one), and Apgm.kext that I mod too.
Also I put a PCIe 1x card that I need in the second PCIe x16 slot. Because of that, I got the Graphic Card running at Pcie 8x. Somehow it help stabilize the result.... really strange.
After sleep I get metal : 83k / 86k and OpenCL :76k / 77k.
So thank you man for your work
 
Last edited:
Joined
Feb 25, 2016
Messages
48
Motherboard
Gigabyte GA-Z170X-UD5 TH
CPU
i7-6700K (OC 4.7Ghz)
Graphics
Sapphire Vega 64
Mac
  1. iMac
  2. MacBook Pro
Classic Mac
  1. Power Mac
Mobile Phone
  1. iOS
This performance-enhanced SSDT was working wonderfully for me with Clover and previous os versions, but when I switched to OpenCore and Big Sur it stopped working.
So I'm wondering if anyone has managed get it to work with OpenCore or Big Sur?
Thanks!
 
Joined
Apr 2, 2013
Messages
30
Motherboard
Gigabyte Z490 Aorus Pro AX
CPU
i9-10850K
Graphics
Vega 64
Mac
  1. MacBook Pro
This performance-enhanced SSDT was working wonderfully for me with Clover and previous os versions, but when I switched to OpenCore and Big Sur it stopped working.
So I'm wondering if anyone has managed get it to work with OpenCore or Big Sur?
Thanks!
I forgot to tell that I am with OpenCore 0.6.7
So it may be a big sur thing.
 
Joined
Feb 25, 2016
Messages
48
Motherboard
Gigabyte GA-Z170X-UD5 TH
CPU
i7-6700K (OC 4.7Ghz)
Graphics
Sapphire Vega 64
Mac
  1. iMac
  2. MacBook Pro
Classic Mac
  1. Power Mac
Mobile Phone
  1. iOS
I forgot to tell that I am with OpenCore 0.6.7
So it may be a big sur thing.
It's great that you got it to work with OpenCore, and you may be right about Big Sur.
I would love to have a look at your EFI(serial numbers removed from config.plist), so if you don't mind posting it, I would appreciate it.
Thanks!
 
Joined
Apr 2, 2013
Messages
30
Motherboard
Gigabyte Z490 Aorus Pro AX
CPU
i9-10850K
Graphics
Vega 64
Mac
  1. MacBook Pro
It's great that you got it to work with OpenCore, and you may be right about Big Sur.
I would love to have a look at your EFI(serial numbers removed from config.plist), so if you don't mind posting it, I would appreciate it.
Thanks!
There it is.
The graphic card is a vega 64 Sapphire nitro+

Edit : Since OC 0.6.8 video SSDT do not work anymore... But I also change lots of things.
 

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Last edited:
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