Originally Posted by bashy
my main game is cod4. my fps is low and so are my settings atm.
does it help if I add another gigabit of memory and get new cpu for my mobo, like 4200+?
well ofcourse it helps but does it help a lot in my case? or is it totally useless upgrade?
It depends on how much money you want to spend. If you are on a tight budget, then Id say your first priority would be upgrading your video card (most important part for gaming), and overclocking your CPU if you have not yet. Upgrading your cpu or ram wont really do anything for your fps if your video card is bottlenecking your system. Id recommend the HD3850 for a tighter budget, and the HD3870 or 8800gt for a higher budget.
Then later, you can add another gig of memory, and upgrade your cpu to a dual core, like an X2 or a dual core Opteron.
However, if you have a bigger budget, id recommend completely upgrading your system. These days you can get an Intel E21xx series processor for about $60, a good 2gb DDR2 ram kit for about $50, and a decent p35 motherboard for around $80-$90. You can even buy them used for cheaper, and you can sell your old parts to lessen the cost.