![]() Technically, having two monitors DOES use more GPU. So the answer to the question “does dual monitor use more GPU?” involves technical and practical components. So while a specific graphics card may have no issue running a game at 1920×1080, it may not be able to sustain playable FPS at 3840×1080 resolution.Īlso Read: Should You Connect Monitor to GPU or Motherboard? Final Words If you have dual monitors, it must render 3840x x 1080 pixels of the game. If you game on dual monitors with an extended gaming display, that can EAT up your GPU.įor instance, with a single Full HD display, the GPU can only render 1920 x 1080 pixels of your game. How Does Extended Display Gaming on Dual or Multiple Monitors Affect GPU? That would be a different story if you were to GAME ON BOTH monitors. If the second monitor is sitting idle while you game on your primary monitor, then no, the dual monitor does NOT seem to use more GPU to the point that it may affect performance. Here is a screenshot of the results: I recommend watching the entire video here. HypnotizeD tested CS: GO, Shadow of the Tomb Raider, and Deus Ex: Mankind Divided with up to 4 monitors. There is no difference in GPU usage when you have two, three, or even four monitor connections. Dual screen Case Study by HypnotizeD Gaming & TechĪ YouTube user named HypnotizeD has done a reasonably neat study on whether multiple monitors affect FPS in games.Īs expected, the results align with what I tested with my games above. There is no difference in frame rate or GPU usage for the Intel HD 630 or the GTX 1050Ti if you have another monitor screen connected. You can see a similar result with Subnautica. Subnautica (Moded) – Ultra Preset at 1920 x 1080 Resolution While frame rates have ups and downs when gaming, Riftbreaker generally hovers at about 41-43 FPS at ultra settings on 1080p resolution in both scenarios. With Riftbreaker, there was no difference if you had another monitor attached to your PC. Here are the results: Riftbreaker – Ultra Preset at 1920 x 1080 Resolution Image: Riftbreaker Single vs. In other words, the games were played on a SINGLE monitor. Important Note: The second monitor is sitting idle! The game was NOT played on extended-display mode. ![]() The games were played on an Intel Core i7-7700HQ, with 16 GB of RAM and an NVIDIA GTX 1050Ti graphics card. I used MSI Afterburner to record the frames per second and GPU usage in the game. I tested dual monitors on two games: Riftbreaker, and Subnautica So for basic tasks, you can expect a minimal, almost negligible, difference in performance.īut what about heavier tasks like gaming? So Does Dual Monitor Use More GPU When Gaming?Ĭontrary to logic, according to several tests conducted by different users, dual or more monitors have minimal impact on gaming. Of course, when you perform simple actions like moving a window around or opening an app, the usage of the GPU will increase, but this increase will be consistent with both single and dual-screen setups. When idle, there is no difference when using single or dual monitors. Image: Single Screen GPU Usage at idle Image: Dual Screen GPU Usage at Idle Therefore, you can check how much a difference in usage two more monitors can have on it. When sitting idle, the integrated graphics card is the one being used. If you have two graphics cards, as I do, you will have both listed in the menu. With the Task Manager open, head to the performance tab and look for the GPU usage, as shown below. You can conduct a simple test yourself using the good old task manager. How Much GPU is Being Used When PC is Sitting Idle? Practically though, the difference when using a single Full HD, dual, or even triple Full HD display has only a little impact in most cases. The point is that, in theory, the amount of PIXELS your GPU needs to render, not the amount of monitors you have, dictates how much of its resources must be used. So with a simple math logic, you can deduce that a single 4K collection would require twice as many GPU resources as dual FHD monitors. So having two 1920 x 1080 (Full HD) displays means the graphics card has to render twice as many pixels as a single 1920 x 1080 display.įollowing this idea, 4K Monitors would have four times as many pixels as a single Full HD display. Whether your system sits idle with a blank Desktop screen open or runs a AAA game does not matter. So the general idea is that the more pixels you have on your display, the more the GPU has to work. How Does Extended Display Gaming on Dual or Multiple Monitors Affect GPU?.So Does Dual Monitor Use More GPU When Gaming?. ![]()
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