SH4 Specs

[Wulfmann]

Originally Posted by Gizzmoe

Yes, modern DDR2 RAM for example is much faster than older DDR. Your mainboard needs to support a certain RAM type, you can´t put a DDR2 RAM into a DDR slot and vice versa.

Although a DDR2-800 RAM chip has twice the bandwidth of a DDR-400 you won´t notice a big difference in games. It´s much more important to have a fast video card and, depending on how CPU-intensive a game is, also a fast CPU.

Sometimes I use such a statement to answer broader questions.
I certainly agree with the above quote. What is important is balance. Adding more RAM with a weak VC will do little if anything, for sure.

It must always be asked of one's PC, Where is the bottleneck??? What is not allowing certain superior components to function at their max?

However, if one is contemplating a new system or major rebuild (Mobo, VC, CPU, RAM) then opting for DDR2 (800) would make sense. If one has a good 939 system then upping the CPU to DC and maybe a better VC (after SH4 releases to get the best price) would make sense.
It does not hurt to post one's intentions here and at a Tech forum so others can offer advise!

Wulfmann