Microsoft Releases a Multi-GPU Hotfix for Vista

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By: Joe Topolnisky Dec 05, 2007

Microsoft Releases a Multi-GPU Hotfix for Vista

Hitting us with a little download lovin' today, the folks over at Microsoft have released a small hotfix for their Windows Vista operating system that addresses poor gaming/benchmarking performance while running a multi-GPU setup. Here's the official word:

SYMPTOMS
In some scenarios, games and benchmarks perform more poorly than expected on a Windows Vista-based computer. This issue occurs when the games and the benchmarks use multiple display adapters in a Linked Display Adapter (LDA) configuration.

CAUSE
A graphics processing unit (GPU) or part of a GPU link may incur a small scheduling latency on a new Direct Memory Access (DMA) packet. This is true if the DMA packet is submitted to the GPU that has previously run out of work and if another GPU in the linked configuration is very busy. In some scenarios, significant starvation of one or more GPUs in the linked configuration reduces the expected performance of an application.

If you've been experiencing these problems and are looking for a quick-fix, you can grab the file right here.

Thanks for the heads-up Josh!