The hotspot sensor is definitely present in the RTX 50 series!

Repair technician Paulo Gomez confirms that the RTX 50 series retains its hotspot sensor, which monitors the highest temperature on the GPU core. This sensor is essential for detecting thermal anomalies during heatsink reassembly. Furthermore, a leaked internal Nvidia tool has reportedly re-enabled access to blocked hotspot sensor data for RTX 50-series graphics cards, providing deeper insights into the thermal performance and peak temperatures of the new hardware generation.