Best answer: Based on price to performance ratio, the NVIDIA RTX 2070 Max-Q is likely the best graphics card (GPU) choice for most people in both the 15- and 17-inch Legion Y740 models.15-inch gaming laptop: Lenovo Legion Y740 15 (From $1,580 at Lenovo)17-inch gaming laptop: Lenovo Legion Y740 17 (From $1,740 at Lenovo)