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23/09/26

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What does anti-aliasing actually do to your PC games?

What does anti-aliasing actually do to your PC games?
Default Door staff@engadget.com (Husain Parvez) - 22 Sep 2026
TAA (temporal anti-aliasing) brings previous frames into the picture. It can smooth jagged edges and help minimize the crawling and shimmering sometimes seen on fences, foliage, power lines and distant objects as the camera moves.

That last part is important. Two anti-aliasing methods can appear almost the same in a paused screenshot, while panning the camera can reveal shimmering, blur or ghost trails almost instantly. When comparing settings, move around. Looking at the same wall for 30 seconds isn't a very good graphics test.

TAA can cause softness or ghosting when information from previous frames doesn't line up cleanly. If your GPU is the limiting factor, reducing or disabling anti-aliasing can improve performance, which could be beneficial in a competitive shooter. But that doesn't necessarily mean turning it off is the best setting. It's not always a good deal to gain a few fps while distant fences are all sparkling like Christmas lights.

NVIDIA doesn't position DLAA (deep learning anti-aliasing) as a performance boost: it uses the same Super Resolution technology developed for DLSS but works at native resolution, while AMD has a similar Native AA mode with FSR. Intel's XeSS also has a Native Anti-Aliasing mode that works at native resolution. Our GPU buying guide can help if you're looking for a better experience on a budget.