Understanding Dual Core Processor Speed



What does that 1.3ghz mean under the processor name? Here is what the device manager looks like:



Here is more information about the processor:

Quote:
CPU Properties:
CPU Type Mobile DualCore Intel Core Duo T2600, 1333 MHz (13 x 103)
CPU Alias Yonah
CPU Stepping C0
Instruction Set x86, MMX, SSE, SSE2, SSE3
Original Clock 2166 MHz
Min / Max CPU Multiplier 6x / 13x
Engineering Sample No
L1 Code Cache 32 KB per core
L1 Data Cache 32 KB per core
L2 Cache 2 MB (On-Die, ECC, Full-Speed)

Multi CPU:
CPU #1 IntelGenuine Intel(R) CPU T2600 @ 2.16GHz, 2161 MHz
CPU #2 IntelGenuine Intel(R) CPU T2600 @ 2.16GHz, 2161 MHz

CPU Physical Info:
Package Type 479 Ball uFCBGA / 478 Pin uFCPGA
Package Size 3.5 cm x 3.5 cm
Transistors 151.6 million
Process Technology 8M, 65 nm, CMOS, Cu, Low-K Inter-Layer, 2nd Gen Strained Si
Die Size 90 mm2
Core Voltage 0.950 - 1.262 V
I/O Voltage 0.950 - 1.262 V

CPU Manufacturer:
Company Name Intel Corporation
Product Information http://www.intel.com/products/processor

CPU Utilization:
CPU #1 / Core #1 0 %
CPU #1 / Core #2 0 %


Laptop Specs:
Quote:

Motherboard:
CPU Type Mobile DualCore Intel Core Duo T2600, 1333 MHz (13 x 103)
Motherboard Name Dell Inspiron 6400/E1505
Motherboard Chipset Mobile Intel Calistoga-GM i945GM
System Memory 1526 MB (DDR2-533 DDR2 SDRAM)
DIMM1: G Skill 512 MB DDR2-533 DDR2 SDRAM (5-4-4-12 @ 266 MHz) (4-4-4-12 @ 266 MHz) (3-3-3-9 @ 200 MHz)
DIMM3: Patriot Memory 1 GB DDR2-533 DDR2 SDRAM (5-4-4-12 @ 266 MHz) (4-4-4-12 @ 266 MHz) (3-3-3-9 @ 200 MHz)
BIOS Type Phoenix (06/13/07)
Display:
Video Adapter Mobile Intel(R) 945 Express Chipset Family (224 MB)
3D Accelerator Intel GMA 950
Monitor Plug and Play Monitor [NoDB]



So how come my processor is operating at 1.3ghz and not the full 2.16ghz?
4 answers Last reply
More about understanding dual core processor speed
  1. I always use CPU-Z to check out my processor specs.
    http://www.cpuid.com/cpuz.php
  2. I've never had an issue w/ CPU-Z

    If you want to test under load, you need to run a program like Prime95 or Orthos. These programs will stress the CPU to its max. not a web browser.
    And just like reviews, i tend to believe 3rd party stats when it comes to a companies hardware
  3. by INTEL i'm assuming you mean the 'intel processor identification utility'
    but no. I've only heard about it nvr used it,
    i have an AMD Athlon 64 X2 cpu (a bit dated but... a car was a more important purchase)
  4. an hr. is a little short.
    i run it for @ least 5. if it doesn't fail on max load during 5 hrs. its good enough for me.
    This was my logic during OCing anyway. Some people have different standards
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