Its specs:
Lenovo Essential G510
i5 4210M 2,6-3,2 GHz 2 Cores (ik, but there are no 4 cored CPUs available in price I want)
4GB RAM (I think you can up it to 8GBs (I hope))
AMD Radeon R5 M230 + Intel HD Graphics 4600
64-bit Win 8.1
1TB HDD
You should build a PC unless you really want a laptop. If that is the case, I cannot really help you because I am not a fan of laptop. I have a really crappy one that I use for traveling, but other than that, I never use a laptop.
EDIT: oh btw. I think I know why Lenovo has such low priced laptops.
The fookin installed 18 crapware.
Seriously. I hope that I don’t have Superfish
EDIT #2: I DO HAVE SUPERFISH.
That explains why my browser is slower.
If you don’t know what Superfish does, it only adds some more ads depending on pages you visited.
So, it spies you + it changes pages certificates to some random ones, so it’s easy to mess your stuff up.