The Intel Arc A770 is the objective winner of this comparison, securing a victory across eight of the sixteen evaluated specifications. Its most significant technical advantage is its shader unit count, which is 60% higher than that of the Intel Arc B580. This substantial lead in raw processing hardware establishes the A770 as the superior choice for users prioritizing core architectural density and raw computational capacity over the newer feature sets found in the alternative model.

Users who prioritize raw shader performance for intensive graphical tasks should select the Intel Arc A770 for its clear hardware advantage. Conversely, those who value the latest software-driven upscaling technology should opt for the Intel Arc B580, which holds a 54% advantage in its XeSS version. Choosing between these two components depends entirely on whether your specific workflow benefits more from the higher shader count of the former or the advanced upscaling capabilities of the latter.