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Mirror's Edge Catalyst Graphics Performance Tweak Guide

By: Sean Ridgeley | Guides | Posted: Sep 25, 2016 11:31 pm

Field of View


One of the more popular and important settings, Field of View (FOV) lets you adjust how 'wide' your perspective is. At the high-end, you see more, but accuracy can be more of a challenge, and depending on your setup, you may get 'fisheye.'




The benchmark shows that FOV has a significant performance impact at all levels, but as 90 is likely too much for most users, 75 is a great balance between vision and performance.








The quality at which the scene is rendered, corresponding to the number of pixels; higher resolutions mean more pixels, which means higher quality.




The benchmark shows Resolution has a major performance impact at all levels. While lowering it may be tempting, it also has a major visual impact, so look at it as a last resort option.





Fullscreen Mode


This lets you choose between Fullscreen and Windowed modes (the former better for performance, and the latter better for multitasking), and Windowed Borderless mode, which appears identical to Fullscreen, but allows for quick switching between the game and other tasks, typically at the cost of game performance.


The benchmark shows that expectedly, Windowed Borderless has a moderate impact on performance. If you can spare the few frames and like multi-tasking, it's worth it, but otherwise stick to Fullscreen if at all possible, or Windowed if you want something in between. Also be aware that anything but Fullscreen tends to add input lag, although it may be difficult to notice.





Resolution Scale


This setting allows you to render the game at a higher resolution than you monitor natively supports, then downsample it to your native resolution through a process referred to as supersampling, thereby producing a sharper quality image. Alternately, you can downsample to a lower resolution, then upsample it for improved performance at the cost of image quality.




The benchmark reveals a massive effect on performance as this setting is changed, and while the visual differences are certainly appreciable, they don't scale with the cost. As such, all but the highest end users should leave it as is, while those with struggling machines should look to it as a last resort option that offers a major boost to frames (as with Resolution).


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