Apple made two checks in their efi ebc driver for 5870 and 5770, to preventus flashing pc cards.
But nothing can stand against me:D
Sshot of first flashed(with ebc rom) 5870 running in MacPro
bad news,still no efi boot screen, good news, it should support macpro 1,1/2,1 now, more at forum thread
ATIRadeonX3000.kext supports new devid, according to info from catalyst 10.8 they are
224,CAYMAN GL XT (6701),NI CAYMAN
225,CAYMAN GL XT (6702),NI CAYMAN
226,CAYMAN GL XT (6703),NI CAYMAN
227,CAYMAN GL PRO (6704),NI CAYMAN
228,CAYMAN GL PRO (6705),NI CAYMAN
229,CAYMAN GL (6706),NI CAYMAN
230,CAYMAN GL LE (6707),NI CAYMAN
231,CAYMAN GL (6708),NI CAYMAN
232,CAYMAN GL (6709),NI CAYMAN
233,CAYMAN XT (6718),NI CAYMAN
234,CAYMAN PRO (6719),NI CAYMAN
235,ANTILLES PRO (671C),NI CAYMAN
236,ANTILLES XT (671D),NI CAYMAN
237,BLACKCOMB XT/PRO (6720),NI BLACKCOMB
238,BLACKCOMB LP (6721),NI BLACKCOMB
239,BLACKCOMB XT/PRO Gemini (6724),NI BLACKCOMB
240,BLACKCOMB LP Gemini (6725),NI BLACKCOMB
241,BARTS GL XT (6728),NI BARTS
242,BARTS GL PRO (6729),NI BARTS
243,BARTS XT (6738),NI BARTS
244,BARTS PRO (6739),NI BARTS
245,WHISTLER XT (6740),NI WHISTLER
246,WHISTLER PRO/LP (6741),NI WHISTLER
247,WHISTLER XT/PRO Gemini (6744),NI WHISTLER
248,WHISTLER LP Gemini (6745),NI WHISTLER
249,ONEGA (6750),NI TURKS
250,TURKS XT (6758),NI TURKS
251,TURKS PRO (6759),NI TURKS
252,SEYMOUR XT/PRO (6760),NI SEYMOUR
253,SEYMOUR LP (6761),NI SEYMOUR
254,SEYMOUR XT/PRO Gemini (6764),NI SEYMOUR
255,SEYMOUR LP Gemini (6765),NI SEYMOUR
256,CAICOS GL PRO (6768),NI CAICOS
257,CASPIAN PRO (6770),NI CAICOS
258,CAICOS PRO (6779),NI CAICOS
and some symbols from x3000 binary
ATIRadeonX3000AMDCaymanHardware
ATIRadeonX3000AMDBartsHardware
ATIRadeonX3000AMDTurksHardware
ATIRadeonX3000AMDCaicosHardware
other info from driver point that upcoming cards gonna be Northern Islands after all, not Southern.
Radeon Northern Islands Unknown Prototype
Radeon Cayman Unknown Prototype
Radeon Cayman GL PRO Prototype
Radeon Cayman GL XT Prototype
Radeon Caicos Unknown Prototype
Radeon Seymour LP Prototype
Radeon Seymour PRO/XT Prototype
Radeon Caicos PRO Prototype
Radeon Turks Unknown Prototype
Radeon Whistler PRO/LP Prototype
Radeon Whistler XT Prototype
Radeon Turks PRO Prototype
Radeon Turks XT Prototype
Radeon Barts Unknown Prototype
Radeon Blackcomb LP Prototype
Radeon Blackcomb XT/PRO Prototype
Radeon Barts PRO Prototype
Radeon Barts XT Prototype
Radeon Park LP Prototype
The Rominator have tested Apple’s 5770 with his MacPro 1,1 and it works fine, proof.
btw Apple uses Hoolock for desktop 5770
Due to me having not enough time and Apple/amd removing r600 (hd2900) support from kext it took longer than usualy.
But here it is, should work now.
dont forget to uncheck ati4800controller option if you use framebuffer from previous osx versions.
FIXED 64-bit mode, it was typo, sry.
btw, versions for 10.6.2/10.6.3, just in case, are here
10.6.2
10.6.3
Apple posted update for new MBPs
Inside we have two new kexts (and some bundles for it), and these kexts have device ids of supported devices
AppleIntelHDGraphicsFB.kext – 0×00468086 0×00428086 (It is the framebuffer)
AppleIntelHDGraphics.kext – 0×00448086 0×00468086 (it is the accelerator)
These devids is for
0042 Core Processor Integrated Graphics Controller (clarkdale’s (desktop) core i3/i5 gpu)
0044 Core Processor DRAM Controller
1025 0347 Aspire 7740G
0046 Core Processor Integrated Graphics Controller (it’s probably arrandale’s (mobile) core i5/i7 gpu)
Good luck in trying these kexts!
How to update – it’s easy.
Use any disabler for AppleIntelCPUPowerManagement.kext, for example – NullCPUPM.kext, install it to Extra mkext and reboot, of course if you made AppleIntelCPUPM to speedstep your cpu, you can skip this step.
Make backup of your kexts, you might need some.
Remove SleepEnabler.kext if you use it, this is very important step, old sleepenabler + new kernel = panic.
Hit the update button, if you need to edit some kexts AFTER update and BEFORE reboot – download and install update from apple site.
After reboot – re-add your device-ids to kexts where you need it and enjoy.
Restore there kexts from backup after update and before reboot, or, if you already rebooted after update – use dvi2vga dongle to get display, and replace those files.
10.6.3 exotic patch pkg, finaly fixed (13:50 GMT, 30 March) - QE CI Exotic cards 10.6.3.pkg
Ok, so first version of pkg was messed up for MacPro+4890 because it had included 10.6.2 FrameBuffer, now it doesn’t have it, so should work fine. A little fix if you installed previous version of pkg and have some visual glitches on osx startup (like colored screen) – fix.pkg
opengl 3.0 test there doesnt work yet tho and most of gl3.0 specific functions aren’t present yet, but most of modern gpu’s functionality is now possible to use via extensions.
I hope they’re not going to hold opengl3.0 untill 10.7 
Radeonhd 4670 in Imacs is mobility card, its clock speed is 680 for core, 790 (1580) for memory.
Desktop’s 4670 card have 750/800, core clock of desktop 4650 – 600.
So performance should be between desktop’s 4650 and 4670.
Here is table with clocks in all states for this card.
Btw, framebuffer is Shrike;)
There is good news for owners of macbooks with intel graphics and 64-bit efi, who was successfull to enable 64-bit.
10.6.2 beta has 64-bit drivers for all intel igp’s used in macs.
Apple released osx update 10.6.1, it brings no new kernel.
Updating is easy, just hit install button in software update.
The update updates graphics drivers, so hd4850 users need to add their device-id to ATI4800Controller.kext before rebooting, its better to use update dmg for those users.
hd4890 Users – wait for patch for qe/ci
And about leopard security update, it has no new kernel or kexts, so should be safe to install
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