Also, some SVGA cards support 15- and 16-bit RGB Highcolor modes, with 32,768 or 65,536 simultaneous colors on screen in 640×480 and higher resolutions. Some later models reach the 24-bit RGB true-color modes. In the 1990s, most manufacturers adhered to the VESA BIOS Extensions (VBE), used for enabling standard support for advanced video modes (at high resolutions and color depths). They are the direct predecessors, not the IBM 8514/A nor XGA, of actual graphic display PC hardware. See 8514/A and XGA above See Super VGA above