Intel HD Graphics DirectX Developer's Guide (Sandy Bridge)

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Intel® HD Graphics DirectX* Developer's Guide 3.3 Texture Sample and Pixel Operations Table 6 Intel® HD Graphics Texture Sampling and Pixel Specifications CPU Product See Error! Reference source not found. Graphics Architecture Desktop and Mobile (Intel® HD Graphics 2000 & 3000) Format Support Max # of Samplers Vertex Textures Max 2D/3D/Cube Textures Filtering Type Support Texture Compression Non Power of 2 Textures Render to Texture Multi-Sample Render Multi-Target Render Alpha-Blend FP formats 16/32-bit fixed point 16/32-bit floating point operations Up to 16 Yes 8Kx8K/2Kx2K/8K BLF, TLF and Dynamic AF with up to 16 degrees of anisotropic filtering + DirectX* 10.1 DirectX* 9: DXT1/3/5, ATI1, ATI2; DirectX* 10: BCx, DirectX* 10.1 Yes Yes, includes off-screen surface support MSAA 4X 8 FP16 and FP32 formats are supported. For a complete list, do a caps check on DirectX* 9 and on DirectX* 10, utilize the DirectX* CheckFormatSupport() call as format support may be added in future driver versions. 18 Document Number: 321371-002US
Quick Tips: Graphics Performance Tuning Table 7 Intel® HD Graphics Sampler Filtering Specifications Product See Error! Reference source not found. Point/Bilinear Trilinear Anisotropic (n samples) Point/Bilinear Trilinear Anisotropic (n samples) Point Bilinear Trilinear 32-bit Texels (per clock cycle) How to maximize graphics performance on Intel® Integrated Graphics 19 1X 1X 0.5X/n 64-bit Texels (per clock cycle) 1X 0.5X 0.25X/n 128-bit Texels (per clock cycle) 0.25X 0.25X 0.125X All sampler filtering types are supported, including dynamic anisotropic filtering. 3.3.1 Tips on Texture Sampling / Pixel Operations 1. Use compressed textures and mip-maps in the same format when possible and minimize the use of large textures. Even though the architecture supports up to 8K×8K textures, for optimal performance it is best to use texture sizes that are 256x256 or smaller. 2. Minimize the use of Trilinear and Anisotropic Filtering especially for floating point textures where the performances of bilinear and trilinear filtering are not equivalent. a. Utilize a type of filtering based on the usage in a scene rather than using it everywhere.
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Intel HD Graphics DirectX Developer's Guide (Sandy Bridge)

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