Aliasing is the unavoidable effect that comes from using square pixels to draw diagonal lines. As screen resolutions increase, the effect becomes less prominent, but on today’s 1,920x1,080 and 2,560x1,440 monitors aliasing (jagged edges) is still a major issue. A range of different anti-aliasing techniques reduce the effect, but these vary by game and by graphics card manufacturer. We use three different methods when testing graphics cards: Fast Approximate AA (FXAA), Multi Sampling AA (MSAA) and Super Sampling AA (SSAA).
FXAA is the least intensive form of anti-aliasing, as it doesn’t actually analyse the 3D models onscreen; instead, it applies a smoothing effect to the entire scene as a post-processing filter. However, this means it blurs objects and textures that should be left alone, reducing the sharpness of the image.…