What's the visual impact of playing games at 1080p versus 900p resolution?
What's the visual impact of playing games at 1080p versus 900p resolution?
If I play a game at 65 frames per second (maximum) in 1080 pixels, then at what frames per second will I play the same game at 900 pixels (maximum)? What is the typical frame rate difference between 1080p and 900p gaming with ultra settings?
Performance varies by title. Certain games may experience an FPS increase if players are having difficulty achieving 45-70 frames per second; you could potentially see a gain of between 2 and 5 fps (if fortunate). However, if a game is already rendering at 300 fps, reducing the resolution could create a CPU bottleneck resulting in an FPS decrease or fluctuation—such as dropping from 300 to 0, followed by a return to 300.
Only you can answer your questions because it depends on the machine and the game. Oversimplifying a bit, the CPU sends the GPU a list of objects to draw and a resolution at which to draw them (which you can change); it's a honey-do list drawn up with tons of instructions. The GPU then gets to work making all the complex calculations to figure out the appropriate color at each pixel. If your CPU is at 100% usage and your GPU still has headroom, then you can run at a higher resolutions with little penalty. The GPU can only render the frames that have been drawn by the CPU. No instructions- no frame.
For instance, I have a Ryzen 1700x CPU and an Nvidia 1070ti graphics card. I get basically the same frame-rate running Overwatch at 1080p and 1440p. If your GPU is struggling, lowering the resolution allows it to produce each frame with few pixels (and less work). If your CPU is struggling, lowering the resolution won't do too much for you.
Good luck!
It’s not always crucial whether your graphics card or central processing unit is the limiting factor. If you're primarily seeking increased frame rates beyond your current display resolution, reducing the resolution can significantly improve performance. While the CPU will eventually become a constraint, without specific information about your games and hardware configuration, it’s generally safer to assume that most games are graphically demanding. A 1920x1080 screen presents 44% more pixels than a 1600x900 display; therefore, if the CPU isn't the bottleneck, you could theoretically achieve an 86% increase in frames per second (for example, from 60 FPS to 86 FPS). Experimenting with different settings is worthwhile – simply adjust them and observe the results.