According to reliable sources, if you own an Intel Mac other than the Mini or an original Macbook — either of which shipped with Intel’s GMA950 integrated GPU — then you are already good to go for support of the full range of OpenCL acceleration features.
If you have a Mac with the Intel GMA950, then you will get most of the benefits of OpenCL though the performance level of those functions will be significantly lessened due to the lack of dedicated graphics RAM and absence of support for many programmable GPU features that exist in other chips/cards going back to the ATi X1000 series.
To get that full support, GPUs as “old” as the ATi X1600, X1800 and X1900 (the latter of which was available for PowerMac G5s with PCI Express slots, based on the PowerPC 970MP dual-core processor while the former shipped in early Intel iMacs and its X1600M cousins in Macbook Pros) will do the job….but certain nVIDIA cards from the GeForce 7000 series, which shipped in iMacs and PowerMacs during the G5 era, most likely will not. Read more
Mac OS X 10.5.7 enters beta; broadly seeded to devs
As Rumors has recently reported, the development of Mac OS X 10.5.7 has been proceeding at a slow but steady pace…and in the past few days, has crossed over into “beta” status with a new build that has been seeded to the full developer community.
Seeded to devs in a full distribution Apple Developer Connection (ADC) release earlier this week, Mac OS X 10.5.7 build 9J22 weighs in at a hefty 400MB (770MB for “Combo” version) and continues to grow in size at a blistering pace — particularly given the relatively small number of builds that have been made of 10.5.7 to date (a mere 22, apparently).
As usual, the OS X Server variant of the 10.5.7 package will be significantly larger and is expected to end up close to a full gigabyte in its Combo version. Read more