Currently S3 DeltaChrome S8 Nitro supports only a single method of full-scene antialiasing: 2x2 supersampling. This one hits performance heavily and is not something that deserves using. S3 promises to improve FSAA performance in future, but it remains to be seen whether the company succeeds or not.
Once FSAA is enabled, speed is below any critics.
Let us try to sum up what DeltaChrome S8 Nitro has to offer us in order to improve the quality of 3D graphics. While anisotropic filtering approach seems to resemble that of NVIDIA and boasts pretty high quality amid pretty reasonable speed sometimes, FSAA is a feature we would not recommend to use on DeltaChrome because of too low performance.