8g DDR2 or 4g DDR3?

[bloodline76]

I am thinking about upgrading my ram as I run dual boot (XP and Vista 64) with 4x1g ram at the moment (in sig)

Now I have 4 DDR2 ports which I could have 8g in with 4x 2g.

And I also have 2 DDR3 ports which means I could have 4g.

Which would be better?

I mainly just game on this computer

Any recommendations as well would be handy as I dont know too much about the ram side of computing.

Thanks

 

[bloodline76]

8gb is overkill, get 4gb ddr2.

I have 4g, you mean, get 4g ddr3?