The NVIDIA GeForce RTX 4090D is the objective winner of this comparison, securing victory in eleven out of fourteen measured specifications. Its most significant technical advantage over the NVIDIA RTX 3090 Ti is its memory clock, which performs 100% better. This substantial lead in memory speed, combined with its dominance across the majority of the evaluated hardware categories, establishes the newer model as the superior component based on the provided technical data.

Users prioritizing the highest possible memory clock speeds should select the NVIDIA GeForce RTX 4090D to take advantage of its 100% performance increase in that area. Conversely, the NVIDIA RTX 3090 Ti remains an option for those who do not require the specific hardware improvements found in the newer model. Choosing between these two components should be based on whether the significant memory clock advantage of the newer card is necessary for your specific hardware requirements.