[ GLOSSARY DEFINITION ] Brands Sapphire AMD-exclusive Radeon graphics card maker. Full Definition & Technical Explanation Sapphire — AMD-exclusive Radeon graphics card maker.This brands term is part of the CompareTech technical dictionary and helps you read specifications, comparisons, and benchmark data across its device database.See also: Palit Zotac. Related Technical Terms Palit Hong Kong-based graphics card manufacturer. Brands Zotac Hong Kong-based maker of compact GeForce cards and mini PCs. Brands ← All Glossary Terms How We Score → ← Previous Term Next Term →