Overclocking ASUS TUF Gaming GeForce RTX 4070 Ti OC
Default
Before we find the highest stable overclock, we need to find out what the default GPU clock speed of the video card is. With both NVIDIA and AMD GPUs, the GPU frequency is dynamic. NVIDIA has GPU Boost, and AMD has its Game Clock and Boost Clock quoted frequencies. Typically, GPUs today can exceed the “Boost Clock” dynamically. We need to find out what it actually runs at in-game, so we can compare the benefit of overclocking. To do this we will record the GPU clock frequency over time while playing a game. We use Cyberpunk 2077 for this with a very long manual run-through at “Ultra” settings recording GPU-Z sensor data.
The ASUS TUF Gaming GeForce RTX 4070 Ti OC has a factory boost overclock set at 2730MHz, up from the reference spec of 2610MHz. The real-world gaming frequency of the video card while gaming held a steady and consistent 2850MHz for the entire gaming session, not dipping once. This is a very stable and predictable performance level. At 2850MHz the video card was boosting 120MHz (4.3%) above the factory overclock. If we compare this to the reference spec, then the video card is running 240MHz (9%) faster than the reference spec by default.
Overclocked
To overclock the ASUS TUF Gaming GeForce RTX 4070 Ti OC video card we are using the manufacturer-provided overclocking software which in this case is the latest version of ASUS GPU Tweak III. This is our highest stable overclock shown below.
How do you overclock the ASUS TUF Gaming GeForce RTX 4070 Ti OC video card? You start by loading up GPU Tweak III and find that you are able to increase the Power Target up by 10% from 100% to 110% for a higher power headroom. We can also increase the fan speed and GPU Voltage as needed. In the screenshot above we managed to hit a GPU Boost Clock of 2950MHz for our highest stable overclock setting, and the memory was able to overclock up to 24GHz from the default 21GHz.
Overclocking the video card with the GPU Boost Clock at 2950MHz resulted in the overclock shown above, where it starts out at 3090MHz, but then settles at 3075MHz for the entire gaming session. Therefore, our real-world gaming clock while gaming is 3075MHz up from the default 2850MHz without the overclock. We broke the 3GHz barrier. At 3075MHz we are achieving a 225MHz or 8% overclock over the default operation. Comparing this overclock to the NVIDIA reference spec, this is a 465MHz or 18% higher clock speed, at the NVIDIA reference spec of 2610MHz.