ATI X1900 User Guide - Page 112

When Catalyst™ A.I. is enabled in Catalyst™ Control Center,

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104 12 What happens if the CrossFire™ Edition graphics card and the CrossFire™ Ready graphics card have different clock speeds? Both cards will continue to operate at their individual clock speeds; neither card is "stepped down." The compositing engine on the CrossFire™ Edition card merges the resulting images independent of the clock speed on either graphics card. 13 On what basis are different rendering modes chosen? When Catalyst™ A.I. is enabled in Catalyst™ Control Center, it determines the optimal rendering mode to use, based on the application or game being used. The default rendering mode is dependant on both the hardware configuration and the application being run. 14 What type of performance improvement is expected? Performance enhancements experienced on a CrossFire™ system depend on the application or game being used. Performance improvements can be increased up to 100%. 15 How many independent displays can be connected to a CrossFire™ system? While CrossFire™ is designed for optimal use on a single display, it is possible to drive multiple monitors using a CrossFire™ system when CrossFire™ is not enabled. If the motherboard contains an integrated video connection and SurroundView™ is enabled, more displays can be added. However, when CrossFire™ is enabled all display devices connected to both CrossFire™ graphics card will be disabled except the one connected to the CrossFire™ connector. Additional troubleshooting tip are covered in the "Reference" chapter.

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104
12
What happens if the CrossFire™ Edition graphics card and the
CrossFire™ Ready graphics card have different clock speeds?
Both cards will continue to operate at their individual clock speeds;
neither card is “stepped down.” The compositing engine on the
CrossFire™ Edition card merges the resulting images independent of
the clock speed on either graphics card.
13
On what basis are different rendering modes chosen?
When Catalyst™ A.I. is enabled in Catalyst™ Control Center, it
determines the optimal rendering mode to use, based on the
application or game being used. The default rendering mode is
dependant on both the hardware configuration and the application
being run.
14
What type of performance improvement is expected?
Performance enhancements experienced on a CrossFire™ system
depend on the application or game being used. Performance
improvements can be increased up to 100%.
15
How many independent displays can be connected to a
CrossFire™ system?
While CrossFire™ is designed for optimal use on a single display, it
is possible to drive multiple monitors using a CrossFire™ system
when CrossFire™ is not enabled. If the motherboard contains an
integrated video connection and SurroundView™ is enabled, more
displays can be added. However, when CrossFire™ is enabled all
display devices connected to both CrossFire™ graphics card will be
disabled except the one connected to the CrossFire™ connector.
Additional troubleshooting tip are covered in the “Reference” chapter.