Mac OS X 10.5.7 may have Nehalem, Radeon HD 4000 support
In addition to expected fixes, Apple's upcoming 10.5.7 update to Mac OS X Leopard is now claimed to recognize Intel's newer Nehalem architecture as well as AMD's ATI Radeon HD 4000 graphics chipsets.
The reported discovery by netkas has produced just five kernel extensions for the video cards and doesn't appear to work perfectly in a bootleg installation for 10.5.6 meant for hacked Mac OS X installations. The retrofitted version doesn't recognize DVI ports fully and doesn't even recognize widescreen resolutions without third-party utilities to force the expanded screen area.
However, the extensions are enough to not only identify the mid-range Radeon HD 4850 and high-end 4870 chipsets by name but to enable Core Image and Quartz Extreme acceleration of the Mac OS X interface, which would require the direct involvement of AMD, Apple or both firms to work. They also support the full OpenGL 2.1 specification for 3D graphics.
