The Pentiums are, as far as I know, a bit higher in the spectrum than the Celeron in the original. The one from currys with the a6 probably has a better integrated gpu. But wouldn't dare say for that for certain.
Key details would be your budget and location. The first speedy little laptop that comes to mind is the razer blade...but you might not have the budget for that or be able to order it where you are located.
I live near Manchester, UK
My nearest computer stores are PC World and Scan Computers (Scan is very very good)
I'm looking for one that I can use in a coffee shop and also on the train but also portable enough to fit in my backpack which has an area to slip a laptop in.
Seems reasonable for 300GBP. That's not my neck of the woods though so I am not the best source. It'll do basic browsering and office work. Not going to do much gaming (if any at all) Win7 is running about 150USD over here. I know win10 isn't terribly appealing especially if you mind your privacy, but it is a decent OS. So maybe you can save some cash. If you have a student ID you can get the student version of most OSes on the cheap from a local university, at least you can in the US.
What about these:
-https://www.amazon.co.uk/HP-ProBook-Education-11-6-Inch-Graphics/dp/B013T58716/ref=sr_1_19?s=computers&ie=UTF8&qid=1468921250&sr=1-19
-https://www.amazon.co.uk/Acer-Aspire-R3-131T-P02Q-notebooks-Touchpad/dp/B0183OWNV8/ref=sr_1_24?s=computers&ie=UTF8&qid=1468921250&sr=1-24
-http://www.currys.co.uk/gbuk/computing/laptops/laptops/hp-15-af155sa-15-6-laptop-blue-10137877-pdt.html
The Pentiums are, as far as I know, a bit higher in the spectrum than the Celeron in the original. The one from currys with the a6 probably has a better integrated gpu. But wouldn't dare say for that for certain.