The NVIDIA RTX 5090 is the objective winner of this comparison, securing victory in ten out of fourteen measured categories. Its most significant technical advantage is its shader unit count, which is 254% higher than that of the NVIDIA RTX 5070 Ti Mobile. This substantial lead in core processing architecture establishes the former as the superior hardware option for users prioritizing raw computational capacity and high-end graphical throughput over other considerations.

Choose the NVIDIA RTX 5090 if your primary requirement is maximum shader performance for demanding tasks. Conversely, select the NVIDIA RTX 5070 Ti Mobile if your decision is driven by the MSRP, where it maintains a 100% advantage over the alternative. This makes the mobile variant the logical choice for budget-conscious users who need a functional GPU solution without the significant financial commitment required by the higher-spec desktop component.