GTA IV & CPU Should I go Quad, should I stay Dual?

Ok, massive processor dilemmas people.
I have currently P5N-T Deluxe, E6320 @ 3.2Ghz with TRUE, 2Gb Dominator 1066, 512mb 8800GT OC x2 in Sli.
I have just bought GTA IV and the next gen game system requirements have just slapped me in the face! I can only run medium textures due to the 'limited' 512mb VRAM but more crucially I am also lagging up in-game. The in-game benchmark says CPU is running 90% and RAM is 95%.... So: another 2Gb RAM is a given, but what to do about the CPU?
It has always been so far that quick dual cores - I.e. E8400 @ 4Ghz will be better, and cheaper, for gaming than a slower quad. Forget multi-tasking for my use - I want to game. But now, I have a game I really want to play that recommends a 2.4Ghz+ quad core - it multithreaded gaming finally here? Would I be an idiot to buy my planned E8400. Other options are Q9550 (the expensive option!) or Q6600/Q6700.
My mobo will support yorkies and is running 465 mhz FSB currently so I should be able to run all of these. Should I save £80-90 and go Q6x00 or just go balls out on a Q9550? Is anyone still saying E8x00?
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More about quad stay dual
  1. nah Q6600 and oc it to 3.4/3.6 with that TRUE :)
  2. Try the RAM first - if you still have issues then look into CPU - but I expect the RAM is causing the 'lagging' you describe
  3. With my 4gb of ram, the bench says i use about 40-50 percent. So 4 gig is a must. My e4400 at 2.7 is at 95% usage as well. IT seems as if this game is really CPU bottlenecked.
  4. I went balls out and bought a Q9550, clocked it to 3.4 got another 2Gb of RAM and it runs sweet now. Just waiting for SLi support - even though the game packaging sports the 'Nvidia way its meant to be played' logo it currently doesn't support SLi!
    So it looks like you NEED 4Gb and a quad to get this one to go properly, and for those interested you will need 1Gb+ of Video RAM to put your textures into highest and view distance much over 45/100. 512Mb = Medium. Also don't count SLi/xfire as double, 512Mb x2 still = 512Mb total... *sigh*
  5. And those of us who had being saying that games would be using Quads in the very near future now say "Told ya so!" :D

    Still...at this point, how could a game NOT ship with SLI support out of the box?
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