Solved

Quick question about running 2 screens on one GPU?

Its simple really I want to dual screen but just have the other screen to handle tasks that are minor. Most of the time the extra screen may sit idle while I play (skyrim, BF, etc) until I need to do something. Is there any performance hit if the screen is idle just to generate the background image at all? Or is it so small I won't even notice the difference? Hope this made sense and I know it sounds noob-ish but the thought hit me and I dont have that kind of knowledge involving that particularly specific concept.
7 answers Last reply Best Answer
More about quick question running screens gpu
  1. Yes, there is a performance it as you are essentially doubling the resolution your graphics card has to display, but the performance hit will be minor (not insignificant) to your game play.

    -Wolf sends
  2. Best answer
    I've been on dual or more screens since 2005. Really there is no performance hit. I run 4 screens from my 7950. Even if I'm playing 1080p video on 3 screens, the graphics card stays in 2d mode(low power mode). The only time the graphics card needs to ramp up to full speed is for gaming, and even then I dont get any noticeable performance loss from having video or other small tasks open on my other screens since most of these tasks dont utilize the video card.
  3. Refreshing the second display will snub about 500MB/s of your GPU's 80+GB/s memory bandwidth (128bits x 5GT/s) so the performance hit from having a secondary display for desktop stuff while gaming on your primary display should be less than 1% if you have something like a HD7770 or better.
  4. InvalidError said:
    Refreshing the second display will snub about 500MB/s of your GPU's 80+GB/s memory bandwidth (128bits x 5GT/s) so the performance hit from having a secondary display for desktop stuff while gaming on your primary display should be less than 1% if you have something like a HD7770 or better.


    I got the GPU listed in my signature below those are my actual specs at the moment. So it's a GTX 670 FTW+ 4GB VRAM. Seems like I should be ok then.
  5. I've thinking about doing the same thing for the last few days but just haven't got around to it yet, I have a spare monitor I was going to plug in and have on the side while playing games, for things like game guides, console commands (I'm a cheater), and temp monitoring etc.
    I don't know if it would work out as I haven't done it yet..
    Will the mouse still travel between screens if I have a game going on one monitor and browser on the other? do people do this? Is it off-putting having a second monitor active while playing a game?
  6. gijoe50000 said:
    Will the mouse still travel between screens if I have a game going on one monitor and browser on the other? do people do this? Is it off-putting having a second monitor active while playing a game?

    Whether or not the mouse will be able to leave a full-screen game or not depends on whether or not the game allows you to configure it not to hog mouse input while in foreground. Some games get out of full-screen when they lose focus and for those, you may need to use a full-screen window instead.

    As for being off-putting, that's a personal preference. Personally, I have been doing dual-display for about 15 years so it does not bother me at all.
  7. I love having multiple screens and wouldnt go back. For games that support it I run them spanned on 3 screens (eyefinity). When a game doesnt support it, its nice having ESPN or something playing on another screen, plus all my monitoring software (track temps, utilization, uptime etc.. using Aida64) on another.
Ask a new question

Read More

GPUs Graphics