RAM speed requirements for HyperTransport

[jesterb84]

I was just curious as to how I can calculate the speed required from RAM given a certain AMD processor without taking a performance hit. For example, let's take an AMD Phenom 9600 (Agena). Wikipedia tells me the following stats:

Frequency: 2.3GHz
HyperTransport: 1.8GHz
Multiplier: 11.5x

From this information, how can I calculate whether DDR2 667/800/1066 is sufficient?

I know in the Intel world - taking a C2D for example, if I had a C2D running with an FSB of 333MHz, I would require DDR2 667 due to the FSB being quad-pumped (i.e. 333MHz * 4 = 667 * 2). However, I am aware that AMD uses HyperTransport which eliminates the FSB and works a little differently.

 

[SunnyD]

If you're running at stock, 800MHz.

 

[jesterb84]

Thanks for the confirmation. I read somewhere that higher-clocked RAM was needed to maintain the HT link so 800MHz sounds reasonable.