Do Core 2 Duo's with 667MHz FSB's support Dynamic FSB Switching?

Do the Core 2 Duo models starting with T5xxx (running with 667MHz FSB's and 2MB L2 cache) include the new features of Santa Rosa like Dynamic FSB switching and dynamic acceleration?

thanks

 

No, as you said they are Santa Rosa features & Santa Rosa only.

 

oh, so anything with a t5xxx number isn't even santa rosa?

 

Nopes(I'm sure i'm right but someone can correct mr if I'm wrong) It's reserved for the T7 series.

 

Actually, the T5XXX models consist of both Napa-based (S-M) and Santa Rosa-based (S-P) cpus.

Example:

T5600 Memron (Napa S-M)
T5350 Memron (Santa Rosa S-P)

The latest notebooks are using Socket P, which is for the Santa Rosa chipset.

 

hmm, ok so how about this:
Anything without an 800MHz FSB (or 4MB L2 for that matter) is not Santa Rosa?

 

Yes, as thats the major advance of Santa Rosa.

 

Intel datasheet 31674504.pdf lists the following CPUs as compatible with the Santa Rosa chipset:

T7100
T7250
T7300
T7500
T7700
T7800
L7300
L7500
L7700
U7500
U7600

John

 

No, any Memron C2D that is not Socket P is not Santa Rosa-based. The T5350 is, the T5600 is not. The 800MHz FSB is reserved for only the high end cpus of Santa Rosa, not all of them.

 

what about the list john ratsey posted?

 

They are all Socket P, hence they are Santa Rosa-based.

 

I thought the T5250/70 and T5450/70 were Santa Rosa too. The 5*70s have to be because of the 800MHz FSB!

 

They are, those cpus are just not listed on the chart because they are likely for OEM distribution only..........

 

Alright, I'll try to end the confusion - but it's confusing, thanks to Intel's redundant naming system.

Santa Rosa is utilized in a Centrino Duo and Centrino Pro chipset

The Old Centrino Duo was any Core, or Core 2 processor. The new Centrino Duo is any Socket P Merom. Centrino Pro overlaps Centrino Duo, but excludes all non 800 MHz Socket P Meroms.

Thus, all Core 2's were once considered Centrino Duo
If you restrict it a little, then all Socket P Core 2's are Centrino Duo
Finally, all 800 MHz Socket P Core 2's are Centrino Pro
The latter two were in-house named Santa Rosa

Yeah, just a little confusing, go figure.

 

No L2 can be 4MB or 2MB.

 

I'm not following........

 

The "Santa Rosa" name is not dependent on the L2.

 

I know, as there are Napa S-M cpus with 4MB of L2 (T7200/7400/7600).

I just didn't get the "No L2 can be 4MB" comment.....

 

Going back to the OP's question about which CPUs support the advanced features: I suspect all those that are listed with the 800MHz FSB do so, but I won't make a guess about the others. The only way to be sure is for people who have got the other CPUs to look carefully at their speed range.

John

 

OP stated in the form of a question, Santa Rosa must have 4MBL2 I am only saying that is incorrect.

 

Ah, I understand now.

To the OP, here is a features comparison chart pulled from one of Chaz's posts: http://www.intel.com/products/centrino/compare.htm

 

So, now back to the original question:

First, Dynamic FSB switching is not new to Santa Rosa, and is supported by T5xxx processors. I can see this with my T5250 when CPU-z shows the clock drop below its 1.5Ghz spec.

However, when I run super-Pi to test for dynamic acceleration, CPU-z does not show my T5250 clock go above 1.5GHz. Does anyone know of another way to check or test for dynamic acceleration. I'll be pretty disappointed if Intel has excluded the dynamic acceleration from T5xxx (667MHz FSB) Santa Rosa chips.

 

Sorry, I was tired when I wrote this - Dynamic FSB is new to Santa Rosa. I was thinking of advanced speed step.

Although I'd still like to know if T5xxx chips support dynamic FSB and dynamic acceleration.

 

Its for T7xxx only..