Chosen Solution

–Dell Vostro 15 3558– Current Specs:

  • Intel i5 5200U (Intel HD 5500 integrated graphics)
  • 8gb Ram
  • 525gb SSD
  • Windows 7, soon to be windows 10. Just wondering is its possible or worth upgrading. Cheers!

No, the CPUs are Soldered to the Motherboard. Even if the BGA Grid was the same, the Bios might not have the instruction set for it. There would be a number of issues. I would recommend just selling and upgrading.