User's Manual

User Guide for Chrome 400/500 Series Graphics
SG195-B.1 1/6/2009
Page 112
Synchronizing with the vertical retrace constrains the
frame rate so that it does not exceed the refresh
rate.
OFF – Select OFF to allow buffer swaps to be
processed without waiting for vertical
synchronization. When a buffer flip occurs at a
different time than during the vertical blanking period,
visual artifacts, often described as “tearing” or
“shearing” may be apparent. Note that while visual
artifacts will probably occur with this setting, the
frame rate may increase.
Multi-Core CPU
optimization
S3 Graphics drivers include optimizations which can
allow applications to more fully utilize the processing
power available with systems which have not only a
powerful GPU but also a multi-Core CPU. These
optimizations are often useful when running newer
applications which can take advantage of thread
scheduling prioritization.
Setting options include:
Auto (default) – Select Auto if you want the driver to
decide when to do optimization for Multi-Core CPUs.
ON – Select ON to use the graphics driver’s multi-
Core CPU threading optimizations. Newer
applications usually run faster with this setting.
OFF – Select OFF to avoid possible compatibility
problems when running older applications. The
application will run slower.
Force Anti-alias
mode
Anti-aliasing is a technique to reduce jagged edges
(“jaggies”) of polygons and lines. Pixels on either side of
edges are sampled and then rendered as a blend of the
adjoining colors to smooth the appearance of the edge.
When anti-aliasing is enabled, images are less likely to
display “staircase” edges and broken lines. Sampling
results can be downscaled to the original size, producing
sub-samples of high quality.
Setting options include:
By Application (default) – Select By Application to
allow the application to specify which level of super-
sampling should be applied. Otherwise, the driver
selects an optimized value. This is the default.
OFF – Select OFF to disable anti-aliasing. Image
quality usually suffers, but performance may
increase because less pixel processing occurs.
2X, 4X, 8X – Select a level to enable optimized