The ProBook 4520s features the Intel Core i7-620LM, i5-520M, i5-430M, i3-350M, or i3-330M CPU, the Intel HD integrated graphics or ATI Mobility Radeon HD 4350 512MB dedicated video card, up to 4GB of DDR3 memory, up to 500GB of hard drive space, and a DVD burner or Blu-Ray Combo.
HP ProBook 4520s Notebook PC – Specifications Review
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