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> Fixed point is generally only still useful on embedded. Also multimedia. Modern CPUs compute FP32 floats equally fast as integers. However, when you only nee
by Const-me 5y ago
> Fixed point is generally only still useful on embedded.
Also multimedia. Modern CPUs compute FP32 floats equally fast as integers. However, when you only need 8 or 16 bits of precision, RAM bandwidth often dominates computations. Most image and video codecs are still using 8 bits per channel.
Profit from fixed point can be quite large for these use cases. That’s assuming the implementation is good, with SSE2, AVX2 or NEON SIMD.