Comparison of OpenGL and Direct3D - Performance

Performance

Shortly after the establishment of both Direct3D and OpenGL as viable graphics libraries (circa 1995), Microsoft and SGI engaged in what has been called the "API Wars". Much of the argument revolved around which API offered superior performance. This question was relevant due to the very high cost of graphics accelerators during this time, which meant the consumer market was using software renderers implemented by Microsoft for both Direct3D and OpenGL.

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