[KeplerBoy]

Why stop there? Matrix Processing Unit or Tensor Processing Unit if you want to trigger the physicists or are a fan of the google cloud.

[speed_spread]

Those things actually exists and are called NPU (Neural Processing Unit). Many recent ARM CPU have them (Apple, Qualcomm, etc.) and even new RISC-V CPU. They're different from GPU in being even more constrained in programming requiring usage of a fixed function vendor-supplied library.

[dragonwriter]

Those are a different thing (which may be part of a GPU, e.g., Nvidia's Tensor Cores, or separate, e.g., Apple Neural Engine.)

[nologic01]

Differential Geometric Processing Unit would do it for me.