--- title: "The Advantages of Eyefinity for CAD, Part 3: Rules of Thumb" description: "The Advantages of Eyefinity for CAD, Part 3: Rules of Thumb" image: https://blog.cadalyst.com/hs-fs/file-2566392624-jpg/blog-files/eyefinity.jpg --- [![Cadalyst](https://blog.cadalyst.com/hs-fs/hubfs/Editorial%20-%20Misc/cadalyst_logo.gif?width=198&height=70&name=cadalyst_logo.gif "Cadalyst")](https://www.cadalyst.com) ![Cadalyst_logo-trans.png](https://blog.cadalyst.com/hs-fs/hub/251891/file-25772071.png?width=270&name=file-25772071.png "Cadalyst_logo-trans.png") - [About Us](https://www.cadalyst.com) - [Contact Us](https://www.cadalyst.com) [![CADspeed -- Optimizing Hardware for CAD Software](https://blog.cadalyst.com/hs-fs/hubfs/CADspeed_header_red.jpg?width=936&name=CADspeed_header_red.jpg "CADspeed -- Optimizing Hardware for CAD Software")](https://cadalyst-2.hs-sites.com/cadspeed) ## [The Advantages of Eyefinity for CAD, Part 3: Rules of Thumb](https://blog.cadalyst.com/cadspeed/2011/07/05/the-advantages-of-eyefinity-for-cad-part-3-rules-of-thumb) Posted by [cadhardware](https://blog.cadalyst.com/cadspeed/author/cadhardware) Jul 5, 2011, 6:35:11 PM - [Tweet](https://twitter.com/share) Previously in this series, we've talked about [using Eyefinity with older displays](http://cadspeed.wordpress.com/2011/06/28/the-advantages-of-eyefinity-for-cad-part-1-dvi-monitors-and-displayport-graphics-cards/) and [how to find the right adapter for non-DisplayPort monitors](http://cadspeed.wordpress.com/2011/06/30/the-advantages-of-eyefinity-for-cad-part-2-adapters-to-the-rescue/). [![Eyefinity](https://blog.cadalyst.com/hs-fs/file-2566392624-jpg/blog-files/eyefinity.jpg?width=300&height=180&name=eyefinity.jpg "Eyefinity")](https://blog.cadalyst.com/hs-fs/file-2566392624-jpg/blog-files/eyefinity.jpg)Obviously this confusion will fade away as older non-DisplayPort monitors are gradually replaced by new DisplayPort-savvy displays. For reasons of cost though, don't expect to see that too soon. Until then here are some rules of thumb. - A maximum of 2 VGA/DVI/HDMI monitors can be enabled simultaneously by using a passive DisplayPort adapter/dongle on FirePro cards. (about $22) - To enable support for more than 2 VGA/DVI/HDMI monitors, active DisplayPort adapters/dongles are required (about $28 but included for free, one for each DisplayPort output, w/ the latest generation of FirePro cards). - To support a dual-link DVI monitor, a powered, active DisplayPort to DL-DVI adapter/dongle is required (about $80) - DisplayPort monitors of any resolution require no adapters/dongles - VGA monitors can be supported via: Eyefinity is a game-changing technology for boosting productivity at very low cost and low power. By including active adapters in the new FirePro line, AMD is making the user experience for Eyefinity significantly better and thus more pervasive. I actually read a Twitter post the other day that seems relevant here: "RT @cavemanjim: Biggest takeaway from AMD Fusion Summit is that AMD actually cares about user experience. It's not a means to an end, it is the end." *Author: [Tony DeYoung](http://cadspeed.wordpress.com/about#tony_deyoung)* Topics: [Workstations](https://blog.cadalyst.com/cadspeed/topic/workstations), [Hardware](https://blog.cadalyst.com/cadspeed/topic/hardware), [Displays](https://blog.cadalyst.com/cadspeed/topic/displays), [Graphics Card](https://blog.cadalyst.com/cadspeed/topic/graphics-card), [Graphics Cards](https://blog.cadalyst.com/cadspeed/topic/graphics-cards), [Eyefinity](https://blog.cadalyst.com/cadspeed/topic/eyefinity), [Video Cards](https://blog.cadalyst.com/cadspeed/topic/video-cards), [Dell Workstations](https://blog.cadalyst.com/cadspeed/topic/dell-workstations), [Display](https://blog.cadalyst.com/cadspeed/topic/display), [CAD](https://blog.cadalyst.com/cadspeed/topic/cad) # From the Editors of ![Celebrating30years_Logo.wTagline-2.png](https://blog.cadalyst.com/hs-fs/hub/251891/file-2070887635.png?width=204&name=file-2070887635.png "Celebrating30years_Logo.wTagline-2.png") [![CADspeed RSS Feed](https://blog.cadalyst.com/hs-fs/hubfs/CADspeed/rss_feed_cadspeed-230256-edited.jpg?width=30&name=rss_feed_cadspeed-230256-edited.jpg "CADspeed RSS Feed")](https://blog.cadalyst.com/cadspeed/rss.xml) ### Subscribe to Email Updates ![cadspeed_spacer.gif](https://blog.cadalyst.com/hs-fs/hubfs/cadspeed_spacer.gif?width=278&name=cadspeed_spacer.gif "cadspeed_spacer.gif") Looking for something? 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