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mktchin

macrumors newbie
Aug 3, 2012
11
12
What sort results do people see with a RX 580 with RadeonBoost.kext loaded on a Mac Pro 5,1? I'm getting around 51000. Does that sound right? The kext appears not to be loaded.
 

CMMChris

macrumors 6502a
Original poster
Oct 28, 2019
850
793
Germany (Bavaria)
It's a codeless kext so you won't see it loaded. If your GPU / display info containts EFI and VBIOS versions the kext does work. 51k is allright for an RX580.
 

h9826790

macrumors P6
Apr 3, 2014
16,614
8,546
Hong Kong
benchmark works in geekbench as kext in library/extensions

openCL 71940
metal 95118

but luxmark ?


View attachment 906854


and furmark with 44fps without 59 fps !?!
Luxmark and Furmark shouldn't be affected.

I don't think this kext helps anything for OpenGL (yet?). At least not from my own test / observation. But it also won't decrease OpenGL performance.

This is my Furmark result. No RadeonBoost
Radeon VII.png


This is with the RadeonBoost
Screenshot 2020-04-18 at 3.56.36 PM.png


That 9FPS improvement should be nothing related to the Radeon Boost kext. I ran the first test long time ago (on the first day I got my card), by that time, I haven't figure out how to downvolt the GPU yet. And the 2nd test run with Radeon Boost with PowerPlay table injected. I know I shouldn't allow two variables at the same time. However, the minor change in scores should be reasonable enough to conclude that won't affect the OpenGL performance.
 

Pressure

macrumors 603
May 30, 2006
5,076
1,407
Denmark
You stopped using your PowerPlay Table or not? If you dropped the PPT of course you get lower scores. Try using your PPT along RadeonBoost.

Strange. This doesn't happen on Hackintoshes. Have you tried resetting PRAM / NVRAM and SMC?

No, all I did was drop the RadeonBoost.kext in /L/E, repaired permissions and rebooted. You said it shouldn't interfere with my PPT.

As soon as I removed the RB kext my score went back to normal as well as fan noise.
 

CMMChris

macrumors 6502a
Original poster
Oct 28, 2019
850
793
Germany (Bavaria)
Strange. Maybe FE is too different from the regular Vega 64 to work with those properties :/
If you are interested we can experiment with changing parameters via private message.
 

Ludacrisvp

macrumors 6502a
May 14, 2008
797
363
So a few things changed between benches ... but still the same version of macOS and the same hardware.
Updated to a newer beta SSE4.2 emulator from @Syncretic
Added RadeonBoost
Updated WEG/Lilu versions

RX580 4Gb Pulse on the cMP 3,1

GB5 scores:
Metal Before 40,845
Metal After 48,462

OpenCL Before 38,830
OpenCL After 43,246
 
Last edited:

Dayo

macrumors 68020
Dec 21, 2018
2,231
1,267
RX580 8Gb XFX on cMP 3,1

Without RadeonBoostWith RadeonBoost
Compute-RX580-NoBoost.png Compute-RX580.png
 

h9826790

macrumors P6
Apr 3, 2014
16,614
8,546
Hong Kong
No, it's all original to me. If I remove the Radeonboost Kext, the fan will run normally.
I mean put a PP table inside the Radeon Boost kext to override the original fan control, and see if that fix this high fan speed issue.

This fan profile can be identical to the original one, just see if the driver can control the fan better.
 
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tsialex

Contributor
Jun 13, 2016
13,056
13,273
New version attached in first post. Vega 64 owners please check if fans still behave abnormal.
You can remove MacPro4,1 SMBIOS support since MP4,1 are limited to El Capitan and El Capitan don't support of the Polaris/VEGA/NAVI GPUs.
 
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