The Toshiba Satellite L50D-B has an AMD E processor family which is better than the Intel Core i5-5xxx processor family found on most portable PCs of a similar age and type to it.
This laptop's processor family (AMD E) is in fact the worst processor family amongst all laptops that have been on the market for more than a year.
Amongst similar types of laptop the best processor family is Intel Core i7-3xxx.
It may also be worth also looking at one of the other portable PCs that have an AMD E processor family currently available including cheaper laptops such as the Lenovo B50-45, or the HP 255.
If you want a notebook PC with a better processor family then you might want to look at the HP Stream 13 (Intel Celeron and higher rated); or the Lenovo G50-30 (£299.00) (Intel Celeron and cheaper), or the HP Stream 13 (Intel Celeron and cheaper).