GamersNexus, known for their in-depth temperature and power studies of contemporary graphics cards, noticed that the Radeon RX 7900 series has a hidden thermistor. Due to the sensor’s concealment behind the fan, the card can efficiently gauge the ambient temperature within the case. Graphics cards supporting the 0 RPM/0 dB technology will find this function quite helpful. The AMD Radeon RX 7900 series also supports it. When the graphics card is not heavily used, this technology will prevent the fans from running.
Other card components, such as VRMs, might easily overheat without these sensors. Steve Burke uses the GeForce GTX 10 series from EVGA as an example of a card that lacked such sensors, making certain parts overheat and fail. Later, the company was obliged to revamp its cards by adding additional sensors.
Gamers Nexus anticipates that AMD will make the data from this sensor available to users, maybe through official software, although the company has made no formal statements on the subject. It is unclear whether board partners will include identical sensors in their designs; in fact, no manufacturer has revealed its RX 7900 series yet, except for ASUS.