667 vs 80-0/1066?

[Bevan]

Crucial 2GB Kit (2x1GB) DDR2 1066MHz/PC2-8500 Ballistix Memory Non-ECC Unbuffered CL5 Lifetime Warranty - Ebuyer <--- Thinking of getting this.

my RAM is 333.Mhz Ddr2, so its actually 667?

Im thinking of upgrading my RAM, I got 4gb's of it but on a 32 bit system i can only use 3.2gb's of it. So my decision is now, shall i upgrade to 2 gigs of 1066/800 or keep the 3.2 of 667?

Phenom x4 9950 Quad core
K10N78-1394 Mobo 720a chipset
Palit GeForce 250GTS 1024Mb

Any suggestions would be nice

 

[b1gapl]

Yes, your RAM speed is 667. It's really 333, but it's doubled for efficiency. Hence the name Double Data Rate (DDR).

I would suggest you keep the 3.2 usable gigabytes of 667, because you won't see a notable performance increase with 800 or 1066, unless you use programs that rely on memory speed. Such as benchmarks. But in gaming, quantity over speed.