The Intel Arc B580 is the objective winner of this comparison, securing victories in eleven out of thirteen measured specifications. Its most significant advantage over the AMD RX 5700 is its AV1 encoding capability, which is 100% better. While the AMD RX 5700 maintains a 33% lead in memory bus width, it falls behind the Intel Arc B580 in the vast majority of technical categories evaluated.

Users who prioritize modern media production and advanced video encoding should choose the Intel Arc B580 for its superior AV1 support. Conversely, the AMD RX 5700 remains a viable option for those who specifically require the increased memory bus width provided by its architecture. Your final decision should depend on whether your workflow relies more heavily on high-speed memory throughput or the latest encoding standards.