What types of games can I play on this set-up? And on what settings?

So I am planning on getting this set-up and was wondering is it would be good or at least average for gaming...



Processor:AMD Phenom II X6 3.2GHz

RAM: 4GB DDR3

HDD:1TB HDD

Video Card: AMD Radeon HD 6870 (1 GB of Dedicated Graphics)

PSU: 700 Watts



Will this be good enough to play today's types of games?What types of games can I play on this set-up? And on what settings?
plenty good enough. youll probably play things on high and medium.