MSI Afterburner has been experimenting with a voltage/frequency curve editor that includes a heat map. This feature helps users understand the exact frequency their GPU achieves when given a certain voltage level. According to MSI Afterburner developer "Unwinder," the next beta release of this popular utility will allow users to record and visualize the V/F heat map by pressing "M" on their keyboard while in the editor. Once recorded, users can observe the NVIDIA GeForce RTX GPU Boost algorithm in action and see how the GPU switches to different voltage points based on frequency scaling. This process follows the pre-defined V/F curve set for GPU frequency scaling and boosting when needed.

The developer also noted that starting with the "Blackwell" architecture, NVIDIA improved its dynamic voltage frequency scaling (DVFS) within the GPU Boost algorithm. In older architectures, GPU Boost would jump between target V/F points without intermediate values. However, starting with "Blackwell," the curve is much more gradual, and the V/F targets switch up to 1,000 times faster than before, thanks to the DVFS improvements. In the MSI Afterburner beta, this can be seen with a heat map that uses gradients of yellow to indicate the most frequently hit GPU V/F curve points. Below is the GeForce RTX 5090 boosting pattern recorded by the MSI Afterburner beta.