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AI & Machine Learning · Advanced

FP4

A 4-bit floating-point format accelerated by NVIDIA Blackwell Tensor Cores for high-throughput inference.

Definition

FP4 (including NVIDIA's NVFP4 with fine-grained block scaling) quarters memory versus 16-bit formats and boosts inference throughput, with quantization techniques preserving accuracy. It is primarily used for inference of large models.

Exam tip

FP4 is mainly an inference format introduced with NVIDIA Blackwell, not a training default.

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