CPU: Intel Core 2 Duo E6550 2.33 Ghz
Mobo: ASUS P5B-VM SE
320 GB SATA HDD
2 GB DDR2 RAM
ASUS Geforce 7600 GT
I am currently on short budget and can't upgrade my CPU. But I want to upgrade my Graphics card and RAM. I have shortlisted gfx card model to msi gtx 550 ti cyclone ii & ATI Radeon HD 7770. These belong to the price range of my budget. So can u please tell me which one should I buy between these two. or you can make some other suggestion in the close price ranges. Now will the performance of these gfx cards be bottlenecked by my 4 year old CPU? Coz right now i cant upgrade my CPU. Please also suggest which PSU should i buy too.
The second question is along with my 2 GB DDR2 ram can i setup another 4 GB DDR3 ram? Will DDR2 and DDR3 go together?