To accomplish this, we will be using a piece of software called MSI Afterburner. MSI Afterburner power limiting is a form of GPU underclocking that simply allows the card to drop frequencies/voltages, thus dropping power consumption and losing a bit of performance (around 5-10% for RTX 4090). In any case, it is a good practice to power-limit power hungry GPUs. These graphics cards are far from efficient at their default settings and may consume more than 450 watts when fully loaded. The method is particularly useful for owners of the latest generation NVIDIA GPUs, such as the RTX 4090 and RTX 4080.
Using this method, your graphics card will run cooler, quieter, and more energy efficient. In this guide, we will show you how to power limit your GPU.
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