EVGA GTX 580 Classified Utra Review
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Direct3D 11: Some of the new and enhanced features include multithreaded rendering and resource creation (works on all D3D 10+ hardware), a compute shader (works on nearly all D3D 10+ hardware), Shader Model 5 (some of it is emulated in older shader models, but 5.0 requires 11-class hardware), and hardware tessellation (requires 11-class hardware).DirectX 11 runtime: Since Windows XP Service Pack 1 and DirectX 9.0c, the DirectX SDK components have been tied directly into the OS. However, "game developers have gotten really used to the redistributable as something they give their game customers," Walbourn said. He recommended that those responsible for game installation look into the latest recommended techniques.The DirectX 11 runtime will work with Windows Vista and Windows 7, and will include the DirectX 10.1 runtime plus Direct3D 11, WARP 10 Software Device, 10Level9, Direct2D, and DirectWrite.To maintain more consistency with Direct3D feature levels, Direct3D 10 and above have specific features that hardware must support in order to use that particular level. However, Direct3D 9 did not have those same requirements, so now Microsoft is assigning hard requirements for various levels of Direct3D 9 hardware, so developers know what subsets of Direct3D 10 they can target with various legacy hardware.