Hi there. I am deliberating as to whether or not I should upgrade my current MBP which is: Macbook Pro Late 2013 Processor: 2.3 GHz Intel Core i7 Memory: 16 GB 1600 MHz DDR3 Graphics: NVIDIA GeForce GT 750M 2048 MB If I upgraded, I'd be looking at the top spec (without the expensive upgrades) MBP from Apple's website which is: Processor: 2.5GHz quad-core Intel Core i7 Memory: 16GB 1600MHz memory Graphics: AMD Radeon R9 M370X with 2GB GDDR5 memory Now obviously, from the specs above there doesn't seem to be a huge difference, but since they probably use different CPUs and perhaps different memory and obviously different graphics cards. My question is, would I see a noticeable difference in every day use? I use my laptop for about 16 hours per day, mainly running 8-10 Chrome windows with 150 - 200 chrome tabs (I know it's a lot) and Skype, Spotify, Outlook, a couple of to do list applications and Microsoft Office. Any thoughts would be greatly appreciated!