The Intel Arc B570 and the NVIDIA RTX 3090 result in an objective tie, as each component leads in seven distinct specifications. The most impactful advantage for the Intel Arc B570 is its AV1 Encoding capability, which is 100% better than the alternative. Conversely, the NVIDIA RTX 3090 holds a significant lead in raw processing power, with its Shader Units performing 356% better than those found in the Intel Arc B570.

Users prioritizing advanced media workflows and modern encoding standards should select the Intel Arc B570 for its superior AV1 support. Those who require maximum computational throughput for intensive rendering or parallel processing tasks should choose the NVIDIA RTX 3090, as its massive advantage in shader count provides a clear benefit for those specific workloads. Your final decision depends entirely on whether your primary focus is on efficient video encoding or raw shader-heavy performance.