Not getting anticipated FPS

I apologize ahead of time if I didn't find a good thread comparison for this.

Recently built a new machine, I'm trying to determine where/what my bottlenecks are.


Mobo: Foxconn A79S-a 790fx/750sb
CPU: AMD 5400 Black Edition @ 3.3 ghz
Memory: 4gb DDR2 1066 OCZ Platinum (5-4-4-12) running @ 800 (can up to ~840, instead of increasing CPU multi)
HDD: 1x 250gb WD, 1x 400gb WD
GFX: 1x 4870x2
26"Samsung display.

I'm trying to run World In Conflict at 1920x1200 with all the bells and whistles, but the Benchmarking Demo is telling me I'm only averaging 18-20 fps. I'm using Tom's Hardware 4870x2 preview as a comparison system and they were getting ~48fps with all the bells and whistles at 1920x1200.

The differences between my system and theirs is the Memory (DDR3 vs DDR2) A Quad-Core CPU vs a Dual-Core CPU (and AMD vs Intel)

I know for sure that my Graphics card is not the limiting factor. I'm simply trying to decide whether it's my system Memory or My Processor.

What's more likely bottlenecking the system? 4gb ddr2 800 or Dual-core cpu at 3.3ghz?

Benchmarks were run on both Windows Vista 64bit (Home Premium) and Windows XP32bit (professional).

Cheers,
-Dannar

World in Conflict it actually CPU intensive, I'm afraid. GPU/RAM have nowhere near the impact they do in Crysis, COD4 etc.

It's one of the 3 games out right now that support quad cores... in fact, it's built around them. So yes, your not-so-great dual core is really bottlenecking the rig... get a Q9550 or something along those lines, and you will see much better fps.