Precision 3520 and Aspire A315-51 share specifications such as Display Size (15.6 inch), Launch Year (2016 year), Form Factor (Clamshell), Operating System (Windows 10).
The main differences: Processor Model (Precision 3520: Intel Core i7-6820HQ, Aspire A315-51: Intel Core i3 6006U 2GHz); GPU Model (Precision 3520: NVIDIA Quadro M620, Aspire A315-51: Intel HD Graphics 520); Installed Memory (Precision 3520: 16 GB, Aspire A315-51: 4 GB); Storage Capacity (Precision 3520: 256 GB, Aspire A315-51: 1000 GB).
Precision 3520 may suit users who need its differing values, while Aspire A315-51 benefits those who need its paired strengths. Review the specs table above before deciding.