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Microsoft DirectStorage will support NVMe PCIe 3.0 SSDs

One of the novelties of DirectX 12 Ultimate, the vitaminized version of the DX12 API, is DirectStorage. An API designed so that graphics cards can see memory beyond their own VRAM and access the content of the NVMe SSDs connected to the system’s PCI Express hub.

DirectStorage compatible con SSDs NVMe PCIe 3.0

Last Tuesday, Microsoft made a presentation about the DirectStorage API, which is designed to accelerate the copying of data, which does not access, from a GPU to an SSD. This feature is the same as what NVIDIA calls RTX IO, but within DirectX 12 Ultimate. Although Microsoft has confirmed that any GPU that is compatible with DX12 can make use of this API, they recommend activating it in those that meet the requirements of DX 12 Ultimate.

The relevant information that Microsoft has dropped, through the chat of its presentation, is that DirectStorage works with any of the NVMe SSDs that make use of a PCIe 3.0 or higher interface. Which puts an end to the rumor that DirectStorage would force the purchase of NVMe SSDs with PCI Gen 4 interface.

However, it is the GPUs compatible with DX12 Ultimate that have built-in accelerators for the decompression of data from the SSD inside. Being the case of the RTX 20 and RTX 30 from NVIDIA and the AMD RX 6000, the rest of the GPUs despite supporting DirectStorage will suffer an impact on their performance.

Decompression via Compute Shaders

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