The Intel Arc B580 is the objective winner of this comparison, securing a lead in seven out of fourteen measured specifications. Its most significant advantage over the NVIDIA RTX 3080 12 GB is its base clock speed, which is 112% higher. While the competition maintains a lead in several areas, the superior base clock frequency provides the Intel Arc B580 with a distinct architectural edge in this head-to-head evaluation.

Users prioritizing high base clock speeds should choose the Intel Arc B580 for their system builds. Conversely, those who require a higher count of shader units should opt for the NVIDIA RTX 3080 12 GB, as it offers a 250% advantage in that specific category. Selecting between these two components depends entirely on whether your workload benefits more from the increased clock frequency of the Intel card or the significantly higher shader capacity of the NVIDIA alternative.