[SOLVED] FSB:DRAM ratio question

Hello everyone.
I'd like to ask a question regarding FSB vs. DRAM clock speeds. I have a Q6600 @ 2.4 GHz CPU and 4GB of PC2-8500 (at 533 MHz or 1066 MHz DDR). The Q6600's Bus Speed (as shown me by CPU-Z) is 266 MHz, so now I'm getting a FSB : DRAM ratio of 1:2.

So the question is, does it make sense to try and get the ratio to 1:1 without overclocking?

The reason why I'm asking this is that I'm getting very disappointing FPS in games. And having a GeForce GTX 580, I'm assuming the bottleneck is elsewhere, and I'm at my wits' end to find where, so now I'm thinking about clock speeds.

Thanks for any help!