Using Dual Monitor For Gaming:

Using Dual Monitor For Gaming: Should You Do It?

Using dual monitors is fun but some users also complain that after using dual monitors the gaming performance given by their PCs decreases. That’s why most of the users still hesitate in using dual monitors for tasks like gaming in fear of not getting the best from their PCs. But is it really true? Let’s discuss it in this post:

Is Dual Monitor Good For Gaming? If both of the monitors do have high refresh rates (144Hz, 240Hz), response time, resolution, and that PC has average GPU, then it can create some performance difference. Otherwise, if the user has a powerful GPU, then dual monitors don’t cause any noticeable performance difference.

So, if you have a powerful GPU, then you don’t have to worry. Otherwise, if you have an average/budget GPU, then you might see a little bit of performance difference while using two high-end monitors for gaming.

I have benchmarked dual 144Hz monitors on my PC while gaming, let’s see what results I got in this experiment:

My Experience While Gaming Using Dual Monitors:

System specs used for this benchmark:

  • CPU: AMD Ryzen 7 5800X.
  • GPU: Nvidia RTX 3080.
  • RAM: Corsair Dominator Platinum 32GB.
  • Motherboard: Gigabyte X570 Aorus Elite.
  • Monitor: Dual LG 27GN950-B
Games FPS In Single Monitor (4K)FPS In Dual Monitor (4K)
Red Dead Redemption 25754
Battlefield V8681
Cyberpunk 20774944
GTA V7475

Note that for this I have used one of the most powerful GPUs currently available in the market i.e. RTX 3080. That’s why in 4K resolution also I am not seeing any drastic performance difference while using two high-end monitors.

Also, if I run games in lower resolutions like 1080P, 2K with this GPU then it becomes almost impossible to see the difference in real-time while switching from dual to single monitor.

Now, let’s also see what will happen when I use an average GPU with these monitors.

  • CPU: AMD Ryzen 5 5600X.
  • GPU: Nvidia RTX 2080 super.
  • RAM: Corsair Dominator Platinum 32GB.
  • Motherboard: Gigabyte X570 Aorus Elite.
  • Monitor: Dual LG 27GN950-B.
Games FPS In Single Monitor (4K)FPS In Dual Monitor (4K)
Red Dead Redemption 24237
Battlefield V5546
COD Warzone6154
GTA V6256

As we can see in the table, the performance difference is now bigger than the table above. So, the type of GPU definitely matters and affects the performance while gaming on dual monitors.

Now, let’s discuss in detail what we can learn from this experiment:

Takeaways From My Experiment:

Graphics Card Matters:

Personally, I have found that newer and powerful graphics cards work better for multitasking and for using dual monitor setups. No matter the user has two pretty high-end monitors, if he has a powerful and latest GPU installed, more likely he will not see any performance decrease while gaming.

As all the graphics tasks rendered by the GPU only and also send the output to the monitors, that’s why while gaming in two high-end monitors, the GPU has to work a lot harder. 

Again, talking about my experiment, I got a noticeable performance difference when I used the RTX 2080 super (which is a mid-range GPU now) with my system. Otherwise, when I run games with RTX 3080, I could hardly see any difference.

Also Read:

Using Regular Monitor Vs Gaming Monitor
Running 4K Monitor At Low Resolution: Good Idea?

Types Of Monitors You Are Using For Dual Setup:

If you are worried about gaming performance in dual monitors, another thing to notice is what type of monitors you are using. There are very high-end monitors available in the market and they also use a huge amount of GPU resources.

So, if your dual monitors have high refresh rates (like 144Hz, 240Hz), response time (1,2 ms), and resolution (2K, 4K) then you also need a good GPU if you want good performance while gaming.

Otherwise, monitors that have average specs (60Hz, 90Hz refresh rate, 1080P resolution), then any good average/budget GPU can handle dual monitors and keep up a good performance in gaming.

Dual Monitors Do Affect Performance:

Overall, dual monitors do affect the performance while gaming, the parts have to work harder in giving output to two displays. However, if you are using high-end GPU or budget dual monitors (doesn’t consume huge resources) then you will barely notice any performance difference.

Do Dual Monitors Slow Gaming?

Dual Monitors need more resources from the GPU especially if both of them are high-end. That’s why if the GPU can’t handle both of them at the same time, it is quite possible for dual monitors to slow down gaming, otherwise, most of the latest GPUs don’t slow down the performance.

So, don’t get surprised if you are seeing a little bit less performance while using dual monitors. However, dual monitors also don’t decrease the performance drastically while gaming or doing any task. It can slightly decrease the performance, and in the case of good GPUs, you can’t even notice.

Here are some other frequently asked questions about this topic:

Frequently Asked Questions (FAQs):

Do Two Monitors Use More GPU?

Having two monitors use more GPU resources than a single monitor. As all graphics of a PC is processed by the GPU or integrated graphics (APU) so for giving output to multiple monitors (especially both of them have high refresh rate and resolution) the GPU has to work harder.

Should You Disable Second Monitor While Gaming?

Users should only consider a second monitor while gaming if the GPU is entry-level and unable to keep up with both screens. Otherwise, if the user is not doing anything on the second monitor, then it won’t impact the GPU, so there is no need to disable the second monitor while gaming, just don’t use it. 

Overall, if you feel your games are lagging while playing them on dual-screen, you can try just playing on one monitor first. The performance won’t matter much whether you disable the second screen, meaning you can’t get a significant performance boost after disabling the second monitor. 

So it depends on what GPU you have and how resource-hungry your monitor is. Still, I don’t recommend completely disable the second screen while gaming. You can still do other small tasks that don’t use graphics or just keep it turned on, no need to disable it.

Also Read:

Using Dual Monitors With Different Refresh Rates
Does 144Hz Refresh Rate Make Really Any Difference?

Wrapping up:

I hope after reading this post you can decide should you use dual monitors for gaming, can your GPU handle it or not. If you are still unsure, just reach us. That’s it for today, see you in the next one, be techy:)

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