GeForce RTX 3080 Ti vs GeForce RTX 3090 benchmarks
For gaming, the GeForce RTX 3090 graphics card is better than the GeForce RTX 3080 Ti in our tests.
In our comparison, the GeForce RTX 3090 has a slightly higher core clock speed. This is the frequency at which the graphics core is running at. While not necessarily an indicator of overall performance, this metric can be useful when comparing two GPUs based on the same architecture. In addition, the GeForce RTX 3090 also has a slightly higher boost clock speed. The boost clock speed is the frequency that the GPU core can reach if the temperature is low enough. The allows for higher performance in certain scenarios.
Furthermore, the spec sheet for both these GPUs show that the GeForce RTX 3090 has significantly more memory with 24 GiB of memory compared to 12 GiB. If you're planning at playing games at high resolutions with high-quality textures, you will need a lot of memory.
In addition, both the GeForce RTX 3080 Ti and the GeForce RTX 3090 have an identical TDP. Heat output doesn't match power consumption directly but, it's a good estimate.
According to the results of the hardwareDB benchmark utility, the GeForce RTX 3090 is faster than the GeForce RTX 3080 Ti.