Is this the right forum to make this post

[John Fishback]

Most folks would recommend the ATI 4870.

John

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[Martin Jordan]

Yeah that’s what I have been told.

But my additional question is, in OS X 10.6 + it has a new technology called “Open CL”. Without going into a lot of detail Open CL can access Graphics cards that may not be using all memory or utilizing some of it’s functions to greatly accelerate processing power.

You can read Apple’s Aspect Paper about it here.
https://images.apple.com/macosx/technology/docs/OpenCL_TB_brief_20090903.pdf

I was wondering if anyone knows, that if I bought another ATI 4870 and stuck it into a open PCI slot, would Open GL has access it?

This may be a question for Apple forum but I thought maybe someone here is doing this or something like this already.

thx

Dual Core, 3GHz, OS 10.5.6, 16GB Ram, 2 TB internal HD, ATI Radeon X1900 Graphics Card, 4TB External Raid, FCP Studio 7, AE 9.0.2, Squeeze for the Web, MacBook Pro (MBP) 2.6 GHz, Dual Core, 10.5.7, Panasonic HPX300 Camera.
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Mac user since 1988.

[Gary Adcock]

[Martin Jordan] “I was wondering if anyone knows, that if I bought another ATI 4870 and stuck it into a open PCI slot, would Open GL has access it? “

No.
FCP does not support multiple graphics cards at this time, even under SNOW, so adding the card could cause more issues than it would fix.

gary adcock
Studio37
HD & Film Consultation
Post and Production Workflows for the Digitally Inclined
Chicago, IL

https://library.creativecow.net/articles/adcock_gary/AJAIOHD.php