Do graphic cards have instruction sets of their own?

Question

Do graphic cards have instruction sets of their own? I assume they do, but I have been wondering if it is proprietary or if there is some sort of open standard.

Is e

Answer 1

See: CUDA Programming Guide Version 3.0

The compute capability of a device is defined by a major revision number and a minor revision number.

Devices with the same major revision number are of the same core architecture. The major revision number of devices based on the Fermi architecture is 2. Prior devices are all of compute capability 1.x (Their major revision number is 1).

The minor revision number corresponds to an incremental improvement to the core architecture, possibly including new features.

Appendix A lists of all CUDA-enabled devices along with their compute capability. Appendix G gives the technical specifications of each compute capability.