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XFX 280x working but at more than half FPS - no power

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Hi all!

so after 6 months of dead ending(!!) and finally with the priceless help of MaLd0n, I am writing from my new  Sierra installation!


CPU: XEON E5 2670 v1

Board : x79 Lenovo Erazer X700 

GPU : XFX R9 180X

RAM: 16GB G.Skill RipjawsX 1600MHz

PSU : Corsair rm750


Surprisingly enough using injectATI and Load vBios (with some Asus, sapphire etc roms - nearly everything works fine except the XFX one...) in the clover settings, I managed to get my XFX R9 280X working great

well it wasn't so great after I run cinebench in which I got a maximum of 42 fps (while in windows it reaches 98 fps). 

so loaded some 3d games and noticed that the card is using about 40WATTS in full 3d gaming and off course the in game FPS are ridiculously low (and that I have the most energy friendly Tahiti chip in the history of French Polynesia  :drool: )


so is this a kext thing - Sierra recognises the card and its memory of 3GB , or this is the best I can get by injecting a different rom with load vbios?

could this be anything related to power ? (turbo boost doesn't work either but this is a much more common problem as I read in other threads)

I am totally confused....


  • 2 weeks later...
  • Solution

and finally it is working!! it was under my nose all the time. it seems that the stock rom is incompatible but not all XFX roms.

so after testing here is what is worked (for my card at least)

- DD Black Edition 
https://www.techpowerup.com/vgabios/148939/xfx-r9280x-3072-131026(1080Mhz memory clock)

- DD 
https://www.techpowerup.com/vgabios/147218/xfx-r9280x-3072-130926(1000Mhz memory clock)

- Nearly every Asus, Sapphire and Gigabyte 280X rom from the same site (150Mhz memory clock!!!! > Ultra energy efficient (!!) but poor performance. Not bad though for simple everyday tasks)



Clover : 1. FB Name = Hamachi  2. tick Load VBios 3. tick Inject ATI

In EFI : download one of the above Roms, rename it to 1002_6798.rom and place it at CLOVER/ROM/1002_6798.rom. 
(I keep the ASUS Rom as backup)


attaching screenshots.


so only turbo boost for me to solve! and my Mac is kicking asses!!!



  • 1 year later...

I did pretty much that so far, but my XFX 280X DD is running at 150MHz and I've tested tons of different ROMs from either XFX and Asus. The ones that worked are all still running at 150MHz.


I can't figure it out how to make it run properly. I've read that someone used MacPro5,1 definition and deleted the AppleTYuMCE.kext and his LuxMark got up, but I disabled this same kext within Clover and nothing changed. I shouldn't make a difference if I disable it in Clover or delete, right?


I'm clueless and stuck at this 150MHz thing.

  • 1 year later...
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