The R520 is the foundation for a line of DirectX 9.0c and OpenGL 2.0 3D accelerator X1000 video cards. It was the first GPU produced using a 90 nmphotolithography process. The R520 (codenamed Fudo) is a Graphics processing unit (GPU) developed by ATI Technologies and produced by TSMC. Download from this link: Radeon X1950 Pro kext I think the kext includes extensions for other ATI cards too, but Ive only verified on the X1950 on OSX 10.5.7 Screenshot of my sy. I had a hard time finding a kext that actually worked for this card with QE and CI, so Ive decided to share my efforts. FAQ: Windows® 10 Driver and AMD Graphics Product Compatibility. The X1950 does not meet the minimum requirements of Windows 8 or Windows 10. Digital Video Format MPEG-1, MPEG-2, MPEG-4.