Graphics
Graphics Drivers
AGP Texture Acceleration Shows "Not Available"

Symptom(s):

When the game or application reports AGP is 'off' or disabled, or Microsoft DirectX* Diagnostic tool (dxdiag.exe) shows AGP Texture Acceleration is "not available" on the display tab, check for an update.

Cause:

If the graphics driver reports all of the video memory is local, the DirectX AGP Texture Acceleration setting shows "Not Available". If some or all of the video memory reported is non-local, the AGP Texture Acceleration setting shows "Available."

Older Intel® Graphics Drivers (production versions 13.0 or greater) report all of the video memory as non-local video memory (AGP memory). Therefore, the AGP Texture Acceleration setting shows "Available."

The latest Intel Graphics Drivers (production versions 14.X or greater) do not report non-local video memory. Instead, all of the video memory is reported as local video memory. Normally, the AGP Texture Acceleration setting shows "Not Available" on computers using the latest Intel Graphics Drivers because the driver is not reporting non-local video memory.

Note With the Intel Graphics Drivers (production versions 15.0 or greater) on the Windows Vista* and newer Windows* operating systems, AGP Texture Acceleration shows as "Available." While the Intel Graphics Driver still reports only local memory, these Windows operating systems control the memory management and interprets the Intel graphics aperture as non-local memory. To further clarify, the graphics aperture is a contiguous virtual memory space where the Intel Graphics Driver initiates access to the graphics memory.

Solution:

Having the AGP Texture Acceleration setting as "Not Available" is a normal and expected behavior for the Intel graphics drivers (production versions 14.0 or greater). This setting does not need to be made available, enabled, or activated, and does not affect the performance of games or 3D applications.

When a game or application is checking for AGP or AGP Texture Acceleration, it is looking for non-local memory. Generally, local video memory is usually faster than non-local.

Intel recommends contacting the game or application vendor to get a setting or update that allows the game or application to check for local video memory first.

Operating System:

Windows 2000 *, Windows XP Professional*, Windows XP Home Edition*, Windows XP Tablet PC Edition*, Windows XP Media Center Edition*

This applies to:

2nd Generation Intel® Core™ Processors with Intel® HD Graphics 3000/2000
3rd Generation Intel® Core™ Processors with Intel® HD Graphics 2500
3rd Generation Intel® Core™ Processors with Intel® HD Graphics 4000
Intel® 82845G Graphics Controller
Intel® 82852/82855 Graphics Controller Family
Intel® 82865G Graphics and Memory Controller Hub (GMCH)
Intel® 82915G/82910GL Express Chipset Family
Intel® 82945G Express Chipset
Intel® 82946GZ Graphics Controller
Intel® 82G965 Graphics and Memory Controller Hub (GMCH)
Intel® 82Q963 Graphics and Memory Controller Hub (GMCH)
Intel® 82Q965 Graphics and Memory Controller Hub (GMCH)
Intel® Celeron® Processors with Intel® HD Graphics
Intel® Core™ Processors with Intel® HD Graphics
Intel® G31 Express Chipset
Intel® G33 Express Chipset
Intel® G35 Express Chipset
Intel® G41 Express Chipset
Intel® G43 Express Chipset
Intel® G45 Express Chipset
Intel® Pentium® Processors with Intel® HD Graphics
Intel® Q33 Express Chipset
Intel® Q35 Express Chipset
Intel® Q43 Express Chipset
Intel® Q45 Express Chipset
Mobile Intel® 4 Series Express Chipset Family
Mobile Intel® 945GM Express Chipset Family
Mobile Intel® 965 Express Chipset Family

Solution ID: CS-009689
Last Modified: 05-Oct-2014
Date Created: 25-Feb-2004
Back to Top