The Asus K553MA has a better processor family than most portable PCs that were released more than two years ago. This portable PC has an Intel Celeron processor family, whereas most many processor core laptops that were released around the same time as it have an Intel Core i7 processor family. Portable PCs of a similar age and spec to the K553MA processor families range from Intel Atom to Intel Core i7-3xxx.
It may also be worth considering one of the alternative portable PCs that have an Intel Celeron processor family currently available including because of it's better review score, the X551MA, or the X751MA (£571.39) both from Asus.
Notebook PCs with a better processor family that might be worth considering include the TravelMate TMB115-M (Intel Pentium), the Aspire E3-111 (£533.42) (Intel Pentium), or the Aspire E1 (Intel Pentium) all from Acer which also has a higher Rating.