Power and Temperature
To test the power and temperature we perform a manual run-through in Cyberpunk 2077 at “Ultra” settings for real-world in-game data. We use GPU-Z sensor data to record the results. We report on the GPU-Z sensor data for “Board Power” and “GPU Chip Power” when available for our Wattage data. For temperature data, we report the GPU (Edge Temp of the GPU or Package Temp) as well as Hot Spot (Junction Temperature) when available for our temperature data.
The TGP of the NVIDIA GeForce RTX 4080 and RTX 4080 SUPER is 320W. Of course, due to efficiencies, binning differences, and such, this can vary with the Voltage power needed. We actually found that our NVIDIA GeForce RTX 4080 SUPER Founders Edition had a lower power draw than the GeForce RTX 4080 FE, consuming 5% less power in board power. This is pretty amazing, considering it’s the same performance, or even 1-2% faster. The Radeon RX 7900 XTX is very power-hungry and consumes 21% more power than the GeForce RTX 4080 SUPER.
When looking at GPU Chip Power the GeForce RTX 4080 SUPER uses 8% less power than the GeForce RTX 4080.
When it comes to temperatures, it is no surprise that the Radeon RX 7900 XTX runs the hottest at 70c, while the GeForce RTX 4080 SUPER FE and RTX 4080 FE run at cooler temperatures. The GeForce RTX 4080 SUPER is ever so slightly cooler than the RTX 4080 FE since it uses less power.
This is also no surprise above, the Radeon RX 7900 XTX runs with a very hot Hot Spot temperature of 91c. The GeForce RTX 4080 SUPER FE is about 3.5% cooler on the GPU Hot Spot temperature compared to the GeForce RTX 4080 FE.