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Intel Core 2 Quad Q6xxx series processor (Kentsfield)


Model name: Core 2 Quad Q6xxx series.
Code name: Kentsfield.
Supplier: Intel.
Component class: CPU.


Generation: Core 2.


Quad-core technology: two Dual-Core dies in SMP (Symmetric Multi-Processing) configuration (Dual-Chip Module, DCM).

64 bit technology: EM64T.

Multimedia instruction sets: MMX, SSE, SSE2, SSE3, SSSE3.


L1 cache: (4x) 32 kbyte instruction cache, 32 kbyte data cache (Harvard architecture).
Two-by-two shared L2 cache: (2x) 4 Mbyte.


266 MHz QDR bus.

Memory protection: XD bit.

Protected program execution environment: Trusted Execution Technology (TXT; LaGrande Technology, LT).

Virtualization Technology (VT, Vanderpool).


Quad-core technology: two Dual-Core dies in SMP (Symmetric Multi-Processing) configuration (Dual-Chip Module, DCM).


Power management

Power management:

  • Enhanced Intel SpeedStep Technology (EIST),
  • Enhanced Halt State (C1E).

Clock speed

Clock speed Model Multiplier Introduction Order part numbers
266/2400 MHz Intel Core 2 Quad Q6600 CPU 9 January 2007 OEM (stepping B3, G0): HH80562PH0568M,
PIB (stepping B3, G0): BX80562Q6600
266/2667 MHz Intel Core 2 Quad Q6700 CPU 10 July 2007 OEM (stepping G0): HH80562PH0678MK,
PIB (stepping G0): BX80562Q6700


Voltage: 1.10-1.372 V (0.85-1.50 V).
Power dissipation:

  • step level B3: 105 W TDP,
  • step level G0: 95 W TDP.


  • step level B3: 62.2 °C,
  • step level G0: 71 °C.

Manufacturing process: 65 nm (P1264).

Number of transistors: (2x) 291 million.

Die size: (2x) 143 mm2.

Packaging: Socket T / LGA 775.

System management

Remote management: Intel Active Management (iAMT2).


Type Family Model Stepping Description
0x0 0x6 0xF 0x7 stepping B3
0x0 0x6 0xF 0xB stepping G0

Step level


Step levels:

  • B3: 105 W TDP; thermal specification: 62.2 °C,
  • G0 (July 27, 2007): 95 W TDP; thermal specification: 73.2 °C.

S-Spec / Stepping code

Model Code Stepping Description
Intel Core 2 Quad Extreme Q6600 CPU SL9UM B3 PCG: 05B
Intel Core 2 Quad Extreme Q6600 CPU SLACR G0 PCG: 05A
Intel Core 2 Quad Extreme Q6700 CPU SLACQ G0 PCG: 05A

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