I was going to get a Radeon 6670 GDDR3 for my pc(Pentium Dual-Core E6300 2.80GHz, 4GB RAM and Gigabyte G41M-Combo MOBO) and a friend of mine told me that I should get a Radeon 6770 so I want a second opinion. My budget is about 90 euro and the main purpose of my PC is for gaming(action games,strategic, MOBA mostly).