Multiscreen Madness: We Test Four Incredible Display Setups
What Video Card Do I Need?
A multiscreen setup calls for robust graphics. Here's a quick guide
Gaming on three or more monitors is no easy feat. Pushing that many pixels is hugely demanding on a GPU. So if you want to get the most from your multiscreen setup, you’ll need to pair it with adequate graphics power. Using our challenge scenarios as examples, we examine what kind of GPUs you will need to achieve adequate frame rates and quality settings.

To get the best gaming experience on a six-screen setup, you need two Radeon HD 6990 videocards—if you can find them.
The Wall of Six
AMD likes to tout the ability of its GPUs to handle up to six LCD panels simultaneously. You’ll need a special Eyefinity Edition card, complete with six Mini DisplayPort connectors, if you want to drive six panels with one card, based on the previous-generation Radeon HD 5870.
The problem is that the HD 5870 doesn’t really have enough gas to drive six 1080p panels with decent frame rates in many games. You’ll either have to significantly dial down the eye candy or reduce resolution—which defeats the purpose of having six panels. You’ll see better performance if you pair up two Radeon HD 6970s. Even then, you’ll need to sacrifice some high-end features.
If you want to go all out and drop in a pair of Radeon HD 6990 dual-GPU cards (assuming you can actually find them), then you can get pretty decent frame rates.
You can theoretically drive six panels with Nvidia-based cards, but you’d need either three cards in triple-SLI mode or two GTX 590 dual-GPU cards. It’s unclear, however, whether driver support is really there to deliver the same level of experience.
Triple HD Desktop Monitors
For more practical gaming, three 1080p LCD monitors is probably the sweet spot right now. You can drive three 1080p monitors with a single high-end, single-GPU card like the Radeon HD 6970 and get decent frame rates at the full 5760x1080 resolution. You will need to sacrifice some detail settings in some games. And there will be a few titles, like Metro 2033, that won’t be playable at these resolutions with a single card.
If you’re willing to go with two cards or a dual-GPU card, the field opens up. Either Nvidia or AMD can run a triple HD desktop display with either dual-GPU cards or two discrete cards. If you’re willing to go with the high midrange—Radeon HD 6950s for AMD or GeForce GTX 560 Tis for Nvidia—then you can probably get decent frame rates.
The 30-inch Solution
Assuming you have the monitors and the necessary stands, you can get an awesome experience from three 30-inch panels in portrait mode. That translates to 4800x2560 resolution, or 12.3 million pixels. You can go with a single AMD card, but don’t expect a good gaming experience. What you really want is a pair of high-end, dual-GPU cards. If you’ve got the cash, you might be able to hit good frame rates with two Radeon HD 6990s. That’s a lot of cash, but then you’re driving a lot of pixels. Remember, three of these 30-inch panels are really only about 150,000 pixels less than six 1080p panels. So in terms of GPU horsepower, you need about the same performance for a three-panel, 30-inch setup as you’d need for six 1080p panels—but it will probably look better.
Triple HDTVs
What if you want to hook up three HDTVs? That’s the same resolution as three 1080p desktop panels, and the performance requirements are the same. However, unique problems exist. For one thing, you’ll want three HDMI connections. That’s not as hard as it sounds, though. If you’re going with Nvidia, you’ll need two cards (or a single GTX 590) and three DVI-to-HDMI cables. With AMD cards, you’ll want DisplayPort-to-HDMI adapters. Both of these solutions exist, thankfully.
The other issue you’ll run into is overscan—where the signal extends beyond the visible boundary of the display—although this problem crops up less with the newer HDTVs. If you’re hooking up older TVs, however, overscan can be enough to make you tear out your hair. In that case, you’ll definitely want a third-party solution, like PowerStrip ($29.95 for a single license). But that’s not a solution for the faint of heart.
Lessons Learned
There’s more to using a multiscreen setup than just plugging in the displays
So you’ve cleared off a huge swath of desk space, and you have your multiple large screens arranged just so. Now what? If you’re using an AMD graphics card, you need to pay a visit to the Catalyst Control Center. Getting your displays to work in concert isn’t a totally obvious process. You’ll see all your monitors represented by icons, but no standard menu option for extending the desktop. Rather, you need to select one monitor, then use a drop-down arrow in the upper-right corner of the icon to span a group of your choosing.
In the Nvidia Control Panel, you might think you can take care of the job in the “Set up multiple displays” tab, like you would with two screens. But if you’re using more than one GPU—in either a single- or double-card config— you actually need to go into the “Manage 3D settings” tab to get three or more screens working together.

With Widescreen Fixer, you can adjust the aspect ratio of select games for improved playability across multiple screens.
While gaming can be glorious across three or more large screens, some games are more adaptable to that format than others. In our tests, for example, we found that Call of Duty: Black Ops assumed an unnatural aspect ratio and field of view when we ran it on three 1080p LCDs (with a combined resolution of 5760x1080). But there is a way to compensate for these issues. A free third-party app called Widescreen Fixer (www.widescreenfixer.org) will adjust the aspect ratio to suit your screen setup. It requires that you install a separate plugin for each game you want to adjust—plugins are available for many popular FPS titles, including the Battlefield and Call of Duty franchises, BioShock, and Ghost Recon.
Another issue we encountered involved the placement of various maps, menus, toolbars, etc. in a massively multiplayer game, such as World of Warcraft. By default, this information occupies the far edges of your display, out of the way of the action. But when using an array of large screens, you find yourself having to crane your neck from side to side to access that information. Fortunately, there are a ton of custom interfaces that move those elements to alternate parts of the display. A multitude of custom UIs for WoW can be found at Wowinterface.com.