This may be due to the 8514/A being a GPU, not just a graphics array (CRTC) like the VGA. IBM's 8514/A boards were not cheap; the 8514 initially sold for $1290 for the adapter and $270 for the 512KB memory expansion. The 8514/A market was severely limited by the fact that IBM's boards were made only for MCA systems at a time when ISA systems were the most common. In the late 1980s, several companies cloned the 8514/A often for the ISA bus. Notable among those was Western Digital Imaging's PWGA-1 (also known as the WD9500 chip set), the Chips & Technologies 82C480, and ATI's Mach 8 and later Mach 32 chips. In one way or another, the clones were all better than the original with more speed, enhanced drawing functionality and overall improved video mode selections. Clone support for non-interlaced modes at resolutions like 800×600 and 1280×1024 was typical, and all clones had longer command queues for increased performance. Notable clone adapter cards  The 8514 offered:  Latter clone board offered additional resolutions: