I need help. Im looking for the best video card within reason ($400) that use's Displayport out.
Reason being I want to use an Apple cinema display with my PC and it seems this can only be achieved by converting Displayport to Mini Displayport.
Someone needs to reevaluate his expectations.. there are no 285's, 295's, or 4870x2's with display ports. The best possible card you can get is a 4890... Even without worrying about the display port there is a good arguement for the best single gpu card you can get being the 4890 vaporX cooled card...
You might be waiting until the dx11 series of cards, or even later, if you want a card better than a 4890 with what is at this point in time a port only really used on profefssional series cards..
There will only be a difference at all on 1920*1200 resolutions or higher. If you are larger than that it would be a good investment, at that resolution it would be iffy but perhaps an fps or 2, any less than that you would gain absolutely nothing.
However, games will eventualyl come out (maybe.. consoles and such) that will use larger textures to perhaps start using the larger frame buffer, at this point in time the only want to require that much frame buffer is to crank teh resolution, or crank teh AA to something absolutely silly (which would cripple all the rest of the card anyway )
Learn not to but evil apple products in the future?
Sorry, don't know what else you need really.
Atlona Technologies makes a product called the DP200 that converts from DVI to Mini DisplayPort for 179.00 it works great too! While I do not own one of my own, I do use one at work. (can't afford my own 24" apple display at home) Any way its a great way to use the Mini DisplayPort monitor if you have DVI already. Their web site is Atlona.com
It has been confirmed that the Atlona converter will not correctly convert a DVI/HDMI signal to DisplayPort for use with the iMac 27" display input. Speculation is that the 1920x1200 max resolution is the problem. I don't know why the iMac display won't recognize and switch to that resolution, but then I don't know why it does not have a DVI/HDMI port in the first place.
Belkin is rumored to be releasing a converter that with both convert the signal to DisplayPort and scale it to the correct 2560x1400 resolution but it will likely cost $150-$200 - and who knows what (if any) performance hit will obtain using a converter box.
Right now it seems the best way to use an iMac as a display for your PC is to buy a DisplayPort capable card. Thanks Apple!