The ASUS ROG Strix G18 2025 G815 outperforms the MSI GF63 by wide margins in GPU architecture (RTX 50 vs 30 series per NVIDIA specs), display refresh options, and CPU platform (Core Ultra 200 vs 10th-12th gen per Intel). The MSI GF63 trails on RAM ceiling (16GB max) and lacks 2025 features like advanced AI upscaling. ASUS wins on longevity and performance while MSI only competes on initial pric...