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Microsoft has released a new DirectX 12 update that can allow both processors to simultaneously access GPU memory. The feature is called GPU Upload Heaps and is available in the Agility SDK 1.710.0. GPU Upload Heaps is another function that can be utilized as a part of Resizable BAR to improve performance by eliminating the need to copy data between the CPU and GPU.
GPU Upload Heaps does not require anything from the user other than having Resizable Bar enabled on compatible hardware along with up-to-date drivers. As the feature has only just been released it will take time for developers to implement the DirectX 12 update following their own testing. Developers must follow steps in order to utilize GPU Upload Heaps as it is not automatically utilized by DirectX but they do not appear to be overly complicated.
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GPU Upload Heaps does not require anything from the user other than having Resizable Bar enabled on compatible hardware along with up-to-date drivers. As the feature has only just been released it will take time for developers to implement the DirectX 12 update following their own testing. Developers must follow steps in order to utilize GPU Upload Heaps as it is not automatically utilized by DirectX but they do not appear to be overly complicated.
See full article...