User's Manual

User Guide for Chrome 400/500 Series Graphics
SG195-B.1 1/5/2009
Page 114
screen.
Setting options include:
By Application (default) – Select By Application if
you want the Vertical Sync Control
setting to
change on application requests. If Vsync OFF is
requested, the back buffer is flipped without waiting
for vertical retrace. If the application requests VSync
ON, then the back buffer is flipped while in vertical
retrace.
ON – Select ON to always force a wait for monitor
sync. This option will reduce “tearing” artifacts.
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