THG has learned that graphics drivers developed for Vista will be far more stable than their Windows XP-based counterparts, and not crash the operating system anymore. Vista graphics drivers are programmed for a new driver model currently named LDDM (Longhorn Display Driver Model), although the “Longhorn” part is subject to change. The “user mode-based” drivers depart from Windows XP’s “kernel mode-based” model, and are thus unable to crash the operating system: With LDDM, we can run the driver engine for months without crashing. Despite higher requirements of processing power, ATI does not expect Vista to cause any performance drawbacks when compared to the current OS generation. Right now, the Beta 1 driver runs at about 80% of Windows XP speed. With Beta 2, the engineers hope to attain 90%, with the final version expected to achieve 100% or higher.

THG has learned that graphics drivers developed for Vista will be far more stable than their Windows XP-based counterparts, and not crash the operating system anymore. Vista graphics drivers are programmed for a new driver model currently named LDDM (Longhorn Display Driver Model), although the “Longhorn” part is subject to change. The “user mode-based” drivers depart from Windows XP’s “kernel mode-based” model, and are thus unable to crash the operating system: With LDDM, we can run the driver engine for months without crashing. Despite higher requirements of processing power, ATI does not expect Vista to cause any performance drawbacks when compared to the current OS generation. Right now, the Beta 1 driver runs at about 80% of Windows XP speed. With Beta 2, the engineers hope to attain 90%, with the final version expected to achieve 100% or higher.