NVAPI is NVIDIA's core software development kit that allows direct access to NVIDIA GPUs and drivers on all windows platforms. NVAPI provides support for categories of operations that range beyond the scope of those found in familiar graphics APIs such as DirectX and OpenGL.

Initially exposed only to OEMs and game developer tools, NVAPI is now available for download to all developers interested in building Windows applications on NVIDIA GPUs.

Application Types

NVAPI allows full access to NVIDIA GPUs and drivers in any UI and non-UI application. Under Windows Vista, the application context using NVAPI must be launched in Session 1 or higher.

NVAPI Feature Categories

  • Driver Management
  • Initialization and driver version controls.
  • GPU Management
  • Enumeration of physical and logical GPUs. Thermal and Cooling controls.
  • Display Management
  • Enumeration of NVDIA displays, display postion and timings controls.
  • GPU Topology
  • Ability to enable SLI and Hybrid GPU topologies. Requires NDA Edition for full control of this feature.
  • Frame Rendering
  • Ability to control Video and DX rendering not available in DX runtime. Requires NDA Edition for full control of this feature.
  • System Management
  • Ability to query chipset and system specific information.
  • HDTV Controls
  • HDTV format and overscan controls. Requires NDA Edition for full control of this feature.
  • Video Controls
  • Extended video engine controls. Requires NDA Edition for full control of this feature.
  • Connecting and Configuring Monitors
  • Ability to set views on multiple target monitors.
  • GPU Overclocking
  • GPU overclocking APIs allows apps to run apps at maximum possible clocks. Requires NDA Edition for full control of this feature.

NVAPI Components and Documentation

NVAPI components includes the "lite" headers, grouping mostly often used functions by purpose, one header that includes all functions for power users, and lib files for 32 and 64 bit Windows.

NVAPI Support

NVAPI is constantly and rigorously tested not only for end-users, but for internal use at NVIDIA and our closest partners.

NVAPI NDA Customers

NVAPI comes in two "flavors": the public version, available above, and a more extensive version available to registered developers under NDA. Registered developers can contact their NVIDIA account manager to make sure you have the latest NDA edition of NVAPI.