Looking for a Laptop for university under £300

[RaijinAki]

I've recently started university to study computing and need a laptop for work use. I already have a PC but I hardly spend time in my room, hence the need of a laptop. I will only be doing work on this laptop and occassionally play games such as Hearthstone.

I've looked around for laptops and found many laptops with different processors such as Celeron & i3. I was wondering what the difference between laptop processors are?

What are you using it for?
I'll be using the laptop for research and occassionally use softwares such as photoshop and illustrator. I don't think I'll be playing any games on it.

Budget?
£250 but I can stretch to £300

At the moment I am thinking of getting the Acer ES1-311, 13.3", Laptop, Intel Celeron, 4GB RAM, 1TB - Black which is at £200.

 

[TechyInAZ]

Celeron is the lowest model CPU in Intel's mainstream lineup of CPUs and it's slow. The core I3 is much faster.

Unfortunately, I don't live in the UK so I can't really help with choosing a laptop.