Cores Reported with Different Speeds

Speccy
1

Speccy reports the following

Intel Core 2 Duo E7500

Cores 2

Threads 2

Name Intel Core 2 Duo E7500

Code Name Wolfdale

Package Socket 775 LGA

Technology 45nm

Specification Intel® Core2 Duo CPU E7500 @ 2.93GHz

Family 6

Extended Family 6

Model 7

Extended Model 17

Stepping A

Revision R0

Instructions MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, Intel 64

Virtualization Unsupported

Hyperthreading Not supported

Fan Speed 1997 RPM

Bus Speed 266.0 MHz

Rated Bus Speed 1064.1 MHz

Stock Core Speed 2933 MHz

Stock Bus Speed 266 MHz

Average Temperature 39 ?C

Caches

L1 Data Cache Size 2 x 32 KBytes

L1 Instructions Cache Size 2 x 32 KBytes

L2 Unified Cache Size 3072 KBytes

Core 0

Core Speed 1596.1 MHz Multiplier x 6.0

Bus Speed 266.0 MHz

Rated Bus Speed 1064.1 MHz

Temperature 39 ?C

Thread 1

APIC ID 0

Core 1

Core Speed 2926.3 MHz Multiplier x 6.0

Bus Speed 266.0 MHz

Rated Bus Speed 1064.1 MHz

Temperature 39 ?C

Thread 1

APIC ID 1

Which is puzzling (to me anyway) as I thought both cores ran at the same speed.

All comments gratefully received.

2

If u are using a flipchip processor that can operate at a range of speeds depending on application demand, I would assume that each core can be cranked higher or lower individually of each other, according to need.

Anyone else have another theory?

3

Is this a flip chip processor?

Intel Core 2 Duo E7500

Cores 2

Threads 2

Name Intel Core 2 Duo E7500

Code Name Wolfdale

Package Socket 775 LGA

Technology 45nm

Specification Intel? Core?2 Duo CPU E7500 @ 2.93GHz

Family 6

Extended Family 6

Model 7

Extended Model 17

Stepping A

Revision R0

Instructions MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, Intel 64

4

. . . I thought both cores ran at the same speed.

So have I. I've searched since 23 August and can't find anything. If you ever find an answer, please post it here. :)

5

According to Heisenberg's Uncertainty Principle it is impossible to know both the exact position and the exact velocity of an object at the same time.

http://www.bbc.co.uk/dna/h2g2/A408638

What is impossible to determine with one object does not become easier with two objects in the same instant ! !

I strongly suspect that the two cores are measured at different times,

and wonder if some Processor Clocking Control has kicked in after measuring one core before measuring the other.

6

I am not certain I've ever had a Heisenberg system.

I thought processors worked at a speed determined by the clock crystal and I hadn't appreciated they are load sensitive.

My interest has been piqued by this becasue if the processors only work at the quoted speed some of the time and only in certain circumstances then what exactly are we buying/being sold?