C2D CPU-Z speed higher than actual speed?

I have a C2D T8300, which is a 2.4ghz chip. I downloaded CPU-Z to check out my processor info, and noticed that the multiplier will occasionally go up to 13X, which means its running at 13X199.6Mhz or 2594.8mHz (which is the clock speed CPU-Z is reporting). Is this just an error with CPU-Z or is my processor actually hitting these speeds?

Note: I never OC'd my processor

 

Probably an error, try a different program like Everest or RMclock.

 

I am sure it is just an annomally. The system will actuall clock up a bit more than the cpu is rated for, depending on the fsb of yoru system and the frequency of your memory. It is strange that this s happening with your T8300, since it usually happens more on amd systems where the fsb is not always a normal number.

K-TRON

 

This is perfectly normal behavior. What's happening is that Intel's Dynamic Acceleration is kicking in. Dynamic Acceleration allows one core of the CPU to run at one multiplier higher than the stated multiplier while the other core downclocks in order to run single-threaded applications more quickly. Thus with the T8300 you can reach 2.6 GHz - on one core. If you were running both cores at 100%, you could only reach 2.4 GHz.

In practice, it's not quite perfect, and there's often enough stuff running other than the demanding single-threaded application that both cores run at 2.4 GHz anyways. And sometimes one core spikes to 2.4 GHz for no obviously apparent reason. But Dynamic Acceleration still is fairly new, and may improve in the future.

 

Apollo said it! It (CPU-Z) is correct and accurate.

 

Thanks a lot for the info!