With GPU Upload Heaps, this is no longer necessary, as the new feature allows direct access to GPU memory. Previously, the CPU had to copy data to the GPU, which took time and resources. The use of GPU upload heaps can increase the performance of DirectX12 titles and reduce system RAM usage. This function allows the CPU to directly access the GPU memory simultaneously. Microsoft has announced a new DirectX12 GPU optimization feature called GPU Upload Heaps that works in conjunction with Resizable-BAR. In addition to improved performance, DirectX 12 also offers new features such as improved support for multiple GPUs and better scaling to multi-core processors. Especially for applications that have high graphics requirements, such as games or 3D modeling, this can lead to a significant improvement in performance. Simultaneous access allows the CPU and GPU to work more efficiently and improve the computer’s performance. The DirectX 12 update solves this problem by allowing simultaneous access to the VRAM. Until now, only either the CPU or the GPU could access the VRAM, which could lead to bottlenecks and performance losses. VRAM is a special type of memory used for processing graphics and videos. An update for DirectX 12 allows the CPU and GPU to access the VRAM (Video Random Access Memory) simultaneously. DirectX 12 is a graphics API developed by Microsoft and used in Windows operating systems.
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