(1) (
Floating
Point
4 bits) FP4 has a 1-bit mantissa, a 2-bit exponent and 1-bit sign. Supported in the Python library, FP4 is used to reduce computational demand in AI training and inference. See
AI training vs. inference and
floating point.
(2) An earlier AMD laptop socket.
(3) A black and white photographic film.
(4) (
Foundry
Platform
4 nm) A chip manufacturing platform that differentiates between foundries. See
foundry.