HP ENVY 13-ad070tu and Precision 3520 share specifications such as Storage Capacity (256 GB), Display Resolution (1920 x 1080), Form Factor (Clamshell), Operating System Architecture (64-bit).
The main differences: Processor Model (HP ENVY 13-ad070tu: Intel Core i5 7200U 2.5GHz, Precision 3520: Intel Core i7-6820HQ); GPU Model (HP ENVY 13-ad070tu: Intel HD Graphics 620, Precision 3520: NVIDIA Quadro M620); Installed Memory (HP ENVY 13-ad070tu: 8 GB, Precision 3520: 16 GB); Display Size (HP ENVY 13-ad070tu: 13.3 inch, Precision 3520: 15.6 inch).
HP ENVY 13-ad070tu may suit users who need its differing values, while Precision 3520 benefits those who need its paired strengths. Review the specs table above before deciding.