The NVIDIA RTX 5090 is the objective winner of this comparison, securing victory in ten out of fourteen categories. Its most significant advantage is its FP32 performance, which is 753% better than that of the Intel Arc A580. While the Intel Arc A580 holds a 91% advantage in MSRP, the sheer scale of the performance gap in floating-point operations establishes the NVIDIA RTX 5090 as the superior component in terms of raw technical capability.

Users prioritizing maximum computational power and high-end performance should choose the NVIDIA RTX 5090 for their builds. Conversely, the Intel Arc A580 is the logical selection for budget-conscious consumers who prioritize a lower MSRP over the extreme performance advantages offered by its competitor. By weighing the 753% performance lead against the 91% cost advantage, buyers can determine which component better aligns with their specific financial and technical requirements.