March 14, 2009
The Radeon HD 4870 Mac Edition was a graphics card by ATI, launched in January 2009. Built on the 55 nm process, and based on the RV770 graphics processor, in its RV770 XT Mac variant, the card supports DirectX 10.1. Since Radeon HD 4870 Mac Edition does not support DirectX 11 or DirectX 12, it might not be able to run all the latest games. This item ATI Radeon HD 4870 Graphics Upgrade Kit for Apple Mac Pro. Sapphire Radeon 11265-05-20G PULSE RX 580 8GB GDDR5 Dual HDMI/ DVI-D/ Dual DP OC with Backplate (UEFI) PCI-E Graphics Card Graphic Cards. Sapphire 11265-67-20G Radeon PULSE RX 580 8GB GDDR5 DUAL HDMI / DUAL DP OC w/ backplate (UEFI) PCI-E Graphics Card. NEW Mac Pro ATI Radeon HD 4870 512MB DVI PCIe PCI-Express Video Graphics Card. $11.30 shipping. ATI RADEON HD 4870 512MB GDDR5 PCI EXPRESS X16 DESKTOP VIDEO CARD. Sapphire ATI Radeon 4870 1GB DDR5 Dual DVI PCI-E Video Card PN: 288-20E85-130SA.
Flashing 4870 to work in MacPro
If you dont like minidisplay port or dont want to pay 3 times more for a card from apple, here is directions for how to get 4870 card working in macpro.
1) go to here and download 4870.ROM.zip file, and unpack it
2) backup rom of 4870 card, you can use latest gpu-z utiliy for it
3) flash you 4870 card using dos usb stick and atiflash
atiflash.exe -p -fs -fp 0 4870.rom
I’m not going to explain how to do it, all info is available over net, use google.
4) install drivers pkg for 4800 from #radeonhd channel on irc.osx86.hu (first link in topic)
after installing pkg remove /System/Library/Extensions/Natit.kext
Ati Radeon Hd 4870 For Mac Pro
5) reboot, should work just fine
both dvi ports works.
it was tested with standart card (2dvi and 1 svideo ports), nobody tested with nonstandart cards (with vga/hdmi/DP ports)
known problems : vga (with dvi2vga) doesnt work.
it was tested with standart card (2dvi and 1 svideo ports), nobody tested with nonstandart cards (with vga/hdmi/DP ports)
known problems : vga (with dvi2vga) doesnt work.
![Radeon Radeon](/uploads/1/2/6/4/126402953/760312580.jpg)
WARNING: I’m not responsable for any damage you can do to your system, Do it all at your own risk.
Ati Radeon Hd 4870 Driver
P.S. once you update to 10.5.7+ u can forget forever about step 4