ROG GL703VD-GC028T and Precision 5520 share specifications such as Storage Capacity (256 GB), Display Resolution (1920 x 1080), Form Factor (Clamshell), Operating System (Windows 10).
The main differences: Processor Model (ROG GL703VD-GC028T: Intel Core i7 7700HQ 2.8GHz, Precision 5520: Intel Core i7-6820HQ); GPU Model (ROG GL703VD-GC028T: Nvidia GeForce GTX 1050, Precision 5520: NVIDIA Quadro M1200); Installed Memory (ROG GL703VD-GC028T: 16 GB, Precision 5520: 8 GB); Display Size (ROG GL703VD-GC028T: 17.3 inch, Precision 5520: 15.6 inch).
ROG GL703VD-GC028T may suit users who need its differing values, while Precision 5520 benefits those who need its paired strengths. Review the specs table above before deciding.