The NVIDIA GeForce RTX 4090D is the objective winner of this comparison, securing victory in ten out of thirteen measured specifications. Its most significant technical advantage is its shader unit count, which is 185% higher than that of the competing card. While the AMD RX 7900 GRE performs well in specific areas, the superior hardware density of the NVIDIA GeForce RTX 4090D establishes it as the more capable component across the vast majority of the evaluated metrics.

Users prioritizing raw hardware capacity and the highest shader count should select the NVIDIA GeForce RTX 4090D for their build. Conversely, the AMD RX 7900 GRE is the logical choice for buyers who prioritize the MSRP, as it offers a 66% advantage in that specific category. Choosing between these two components depends entirely on whether your primary goal is maximizing the technical specifications or optimizing for the cost-related advantage provided by the manufacturer.