Hi, I have ordered a Dell XPS 13 with i7-6500U processor, 512GB SSD, 16GB RAM. It is for general daily use - multitasking with internet, emails, word processing, etc. No gaming. No video-editing. I am replacing my current 2010 Dell studio which has intel centrino 2. Anyway, I saw that the XPS 15 has the quad core i7-6700HQ. For my usage, can anyone confirm whether I would ever see the benefit of the quad core? I realise it would probably use much more battery life also, and I would have to upgrade in size. Just wanting to make sure I won't regret the i7-6500U in the XPS 13 because I want this to last.