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The the gtx 460 do work, its been confirmed here on macrumors.

Why buy a adapter for 250 dollars when you just can buy the video card

Sorry still confused!! When you say GTX460 works, do you mean with the standard dvi to mini display port or must the GPU have a mini display port or atlona adapter (surely this is the case) The only GPU I have seen with a mini display port is a ATI 5970. Are there GTX460s with min display port?
 
Sorry still confused!! When you say GTX460 works, do you mean with the standard dvi to mini display port or must the GPU have a mini display port or atlona adapter (surely this is the case) The only GPU I have seen with a mini display port is a ATI 5970. Are there GTX460s with min display port?

BTW will nvidia cards work with displayport to mini displayport to use imac as monitor from pc at max res?
 
Sorry still confused!! When you say GTX460 works, do you mean with the standard dvi to mini display port or must the GPU have a mini display port or atlona adapter (surely this is the case) The only GPU I have seen with a mini display port is a ATI 5970. Are there GTX460s with min display port?
yes, there are GTX460's with GPUs. in order for this to work, the GTX460 HAS to have a DP (or mDP) port! if it does not, then you are looking at $200 for an adaptor to convert DVI/HDMI to DP.
BTW will nvidia cards work with displayport to mini displayport to use imac as monitor from pc at max res?
yup, that would be fine.
 
yes, there are GTX460's with GPUs. in order for this to work, the GTX460 HAS to have a DP (or mDP) port! if it does not, then you are looking at $200 for an adaptor to convert DVI/HDMI to DP.

yup, that would be fine.

thanks vm, I can’t find any nvidia 400 series GPUs with mini displayports but some have displayports. Unless anyone knows better?
 
thanks, i assume sound comes out of pc speakers or does a simple additional lead between PC audio out and Mac audio output jack work?

Since the video card on PC only carry video signal, you will need to have PC audio out to speaker or something...
 
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