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7800GTX ROMs for PowerMac G5

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#1
[www].se [ftp].se [mirror].us
7800_GTX_512.zip (30.18 KB)
For Mac OS X
#2
[www].se [ftp].se [mirror].us
GeForce_7800GTX.zip (30.13 KB)
For Mac OS X
Emulation
Guides on emulating older applications

Throughout the early 2000's, many Mac experts & enthusiasts have found ways to hack graphics cards that were designed otherwise to work in their Macs. This is one of those.
This is a modified ROM file that allows you to use an NVidia 7800GTX on the PCIe enabled Late 2005 PowerMac G5. This card is said to be 10 to 20% (depending on game or application) faster then the fastest OEM G5 card, the Quadro FX 4500. Benchmarks can be seen here.

The first download is believed to be the original rom (not entirely confirmed). This is the recommended download.
The second download is a modified version created by MacRumors forums user rabidz7. It has been criticized by some as having the wrong clock rates and being unstable.

see also: X1950XT ROMs for G5

Compatibility
Architecture: PPC

Requires a Late 2005 PowerMac G5 Quad/Dual Core (not Dual Processor) and a 7800GTX (512mb version) card.

The flashing process must be performed on a PC (unfortunately).

Comments

Jatoba's picture
by Jatoba - 2019, April 25 - 11:52am

The rabidz image might as well be removed, it is non-functonal and the user as a whole is very untrustworthy. The first download doesn't sound good, either, when all it offers is the original ROM and even THAT it is not certain of.

There is a quality ROM for G5 usage that was provided by another user at MacRumors, and that one was tested by many. They all said it worked perfectly, no exceptions. I lack that GPU, so I can't tell. Sad

By the way, all the hacked ROMs I came across were for the 512MB VRAM version of the 7800GTX. There's a far more easily found version of this GPU, but one that is inferior, mostly for having only 256MB VRAM instead, which I never saw a flashed ROM for.

By the way, if anyone is willing to sell me their 7800GTX 512MB VRAM version, I'm interested. Wink

Oh, also, someone also on MacRumors stated the 256MB VRAM version of the ATI X1950XT performed even better (higher clock?) than the 512MB 7800GTX in real tests. I'm not sure if that's true, but I can help others compare, since I have that card successfully flashed. Smile (P.S.: That card once flashed works mostly only with Leopard, with the ROM that circulated.)