i've got a mac pro 2,1 with a similarly "unsupported" 4870
well, it's actually a flashed visiontek card
BUT, at any rate, it works flawlessly with the latest 10a432 build of 10.6
i'm wondering if openCL is using it tho; i tried watching the 1080p GI Joe trailer from the apple trailers site and quicktime was using 40% of one core.
is there any way to monitor openCL activity? i'm pretty sure someone posted about an app elsewhere in these forums...