In fact, we did manage to exceed 3GHz just slightly at +250 Core Clock briefly. Overclocking the core was a lot of fun because we were chasing that 3GHz mark, and we came very close. This brings the memory up to a very high 26GHz from the default 22.4GHz, bringing the memory bandwidth up to 832GB/s versus the default 716.8GB/s. This brings the rated GPU Boost up to 2795MHz. Our final stable overclock ended up being +200 on the Core Clock and the Memory Clock at +1800. In addition, we set the fans to 100% to ensure the highest overclock. This provided a bit of power headroom for overclocking. The first thing to note is that we were able to increase the Power Limit by +15% up to 115% from the default 100%. This is our highest stable overclock shown below. To overclock the MSI GeForce RTX 4080 16GB GAMING X TRIO, we are using the manufacturer-provided overclocking software which in this case is MSI Afterburner. We tried both the SILENT and GAMING BIOS modes and had exactly the same behavior. It’s not enough though to make a gameplay difference. Therefore, even though this card has a factory overclock, in actual gameplay its overall GPU Boost is slightly less than the Founders Edition specifically a 30MHz difference. This behavior differs from the Founders Edition which was consistent and solidly delivered a GPU Boost of 2775MHz. The clock speed was also not consistent, it did fluctuate a bit dynamically as you can see. The clock speed started out at 2760MHz but averaged primarily around 2745MHz while gaming. In the graph above we can see that the clock speed is running faster than the GPU Boost, NVIDIA GPU Boost is dynamically clocking the clock speed upwards beyond the rated speed.
The MSI GeForce RTX 4080 16GB GAMING X TRIO has a factory overclocked GPU Boost of 2595MHz. We use Cyberpunk 2077 for this with a very long manual run-through at “Ultra” settings recording GPU-Z sensor data. To do this we will record the GPU clock frequency over time while playing a game. We need to find out what the GPU frequency is while gaming. Typically, GPUs today can exceed the “Boost Clock” dynamically. NVIDIA has GPU Boost, and AMD has its Game Clock and Boost Clock quoted frequencies. With both NVIDIA and AMD GPUs, the GPU frequency is dynamic. Overclocking MSI GeForce RTX 4080 16GB GAMING X TRIO.MSI GeForce RTX 4080 16GB GAMING X TRIO.
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