Mostly market segmentation. There is a software lock to a certain ratio (of clock speed) to the FP32 performance that varies by the card. For most consumer NVID

Mostly market segmentation. There is a software lock to a certain ratio (of clock speed) to the FP32 performance that varies by the card. For most consumer NVIDIA cards it is locked to 1/24 of FP32 speed to prevent use in professional settings that require FP64 performance. However, some cards, such as the Radeon VII, is only locked to 1/4 of FP32 speed (much faster)