Dell has expanded its laptop portfolio with a new gaming model and two AI-focused mainstream models. The Alienware 15 combines a high-refresh-rate display with Nvidia RTX graphics and user-upgradeable memory and storage. Meanwhile, the Dell 14S and Dell 16S bring Copilot+ features, optional OLED screens, and slim aluminium designs. Dell says the new consumer laptops a…Dell has expanded its laptop portfolio with a new gaming model and two AI-focused mainstream models. The Alienware 15 combines a high-refresh-rate display with Nvidia RTX graphics and user-upgradeable memory and storage. Meanwhile, the Dell 14S and Dell 16S bring Copilot+ features, optional OLED screens, and slim aluminium designs. Dell says the new consumer laptops a…