Wddm2 - [better]

| Feature | WDDM 1.x | WDDM 2.0 | | :--- | :--- | :--- | | | Pinned, physical allocations | Virtual address spaces, pageable | | Command Buffer | Requires OS patching | Self-contained, no patching | | Context Switching | OS-managed preemption | GPU-managed preemption at finer granularity | | Resource Residency | Manual, full allocation | Automatic, page-level | | Supported APIs | DirectX 11 and earlier | DirectX 12, Vulkan, OpenGL (via adaptation) |

Introduction: A Driver Model for a New Era | Feature | WDDM 1

If you are debugging a performance issue in a modern game, analyzing a GPU crash dump, or developing a graphics driver, you cannot ignore WDDM 2.0. It is the reason Windows 10 and 11 can run a 4K game, a CAD workstation, and a dozen browser tabs with hardware acceleration—all simultaneously, without crashing. physical allocations | Virtual address spaces