APU or CPU and dedicated GPU

Varun Salvi

Reputable
Jun 14, 2014
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I have a PC with c2d e7400@ 2.8 GHz and 4 GB ddr3@800 MHz ram without graphic card but with lots of games that lag on it. I want to know what would be better ,
1 Adding 6670 2 GB ddr3 to same rig mentioned above
2 Building a new rig with a8 6600 k or a10 7850 k with 4 GB ddr3@1866 MHz ram with decent mobo and obviously without GPU as I will be using apu
Pls help don't suggest other parts as budget is fixed just tell which is better to play Ac3,Run,A revelations,and similar games.
Any help will be appreciated.