Centrino Pro (800 MHz) and DDR2 (667 MHz)

[jcromano]

Hi,

I've started looking around at notebooks, and I see that some with the Centrino Pro (Santa Rosa) chipset are starting to appear. These are listed at 800 MHz for the FSB, but they all use only DDR2-667MHz RAM. And so I have two questions...

1. Are 800MHz notebook memory modules in the works? Could anyone guestimate the time frame?

2. How much of a benefit would there be to having the RAM run at an integer multiple of the FSB, over and above the benefit from the extra 800-667=133MHz? Would it even be noticeable?

Jim

 

[TheStu]

Originally posted by: jcromano
Hi,

I've started looking around at notebooks, and I see that some with the Centrino Pro (Santa Rosa) chipset are starting to appear. These are listed at 800 MHz for the FSB, but they all use only DDR2-667MHz RAM. And so I have two questions...

1. Are 800MHz notebook memory modules in the works? Could anyone guestimate the time frame?

2. How much of a benefit would there be to having the RAM run at an integer multiple of the FSB, over and above the benefit from the extra 800-667=133MHz? Would it even be noticeable?

Jim

1: Yes they are, timeframe is that they are availble now

2: No benefit at all since Santa Rosa does not support DDR2 800. It has an 800 FSB, but does not support the RAM. But the proc isn't bandwidth starved in its current situation, so running a divider won't cause any major problems

 

[jcromano]

Thanks for the quick answers.

Jim