[DirectX 3 Programmer's Reference] Software Emulation (79.1666666666667%)

DirectSound > DirectSound Architecture > Object Types

[DirectX 5 Programmer's Reference] Software Emulation (49.3236714975845%)

DirectX Foundation > DirectDraw > DirectDraw Architecture

[DirectX 6 Programmer's Reference] Software Emulation (49.3236714975845%)

DirectX Foundation > DirectDraw > DirectDraw Architecture

[DirectX 7 Programmer's Reference] Software Emulation (42.5776397515528%)

Microsoft DirectX 7.0 > DirectDraw > DirectDraw Architecture

[DirectX October 2006 Documentation] Software Shaders (35.5808080808081%)

DirectX Graphics > Direct3D 9 > Reference > Asm Shader Reference

[DirectX 5 Programmer's Reference] Software versus Hardware (23.3562446717818%)

DirectX Foundation > Direct3D Immediate Mode > Direct3D Immediate-Mode Essentials > Performance Optimization