The NVIDIA RTX 4090 is the objective winner of this comparison, securing victory in ten out of fourteen measured categories. Its most significant advantage over the Intel Arc A770 is its FP32 performance, which is 320% higher. While the Intel Arc A770 holds its own in a minority of metrics, the sheer scale of the performance gap in floating-point operations establishes the NVIDIA RTX 4090 as the superior component based on the provided technical specifications.

Users prioritizing raw computational power and high-end performance should choose the NVIDIA RTX 4090 for its massive lead in FP32 capabilities. Conversely, the Intel Arc A770 is the logical choice for budget-conscious buyers, as it offers a 79% better MSRP compared to its competitor. Selecting between these two depends entirely on whether your primary requirement is maximizing processing throughput or minimizing the initial financial investment required for your graphics hardware.