The Dell Inspiron 3521 that I have, has an 1TeraByte HDD, supported with a 4GigaBytes of DDR3 RAM and the graphics performances are boosted with an AMD Raedon 2GigaBytes dedicated Graphics Card. The laptop is powered by Intel i5 3rd generation processor and I had to bear a cost of 44K INR 4years ago since now. I have literally punished my laptop in all these four years with high performance gaming, video rendering and lot of other heavy duty tasks. But it works like a charm till now. As per the battery performance it was able to run on its own for around 3 hours at its younger age, but now it has a back up timing of around 1 and a half hour. But I am really happy with my laptop although it hasn’t that beauty of the other models, and it weighs a bit more too. But at the time of need, it knows its job. Thanks dell for making me this happy.