Core 2 Extreme QX9775 vs Core 2 Duo E6600

Primary details

Comparing Core 2 Duo (Desktop) E6600 and Core 2 Extreme QX9775 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking2775not rated
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorDesktop processor
SeriesCore 2 Duo (Desktop)no data
Architecture codenameConroe (2006−2007)Yorkfield (2007−2009)
Release dateno dataMarch 2008 (16 years ago)

Detailed specifications

Core 2 Duo (Desktop) E6600 and Core 2 Extreme QX9775 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores2 (Dual-core)4 (Quad-Core)
Threads24
Base clock speedno data3.2 GHz
Boost clock speed2.4 GHz3.2 GHz
Bus rate1066 MHz1600 MHz
L1 cacheno data64K (per core)
L2 cacheno data12 MB (shared)
L3 cacheno data0 KB
Chip lithography65 nm45 nm
Die sizeno data2x 107 mm2
Maximum case temperature (TCase)no data63 °C
Number of transistorsno data820 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplier-+
VID voltage rangeno data0.85V-1.35V

Compatibility

Information on Core 2 Duo (Desktop) E6600 and Core 2 Extreme QX9775 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configurationno data1
Socketno dataLGA771
Power consumption (TDP)65 Watt150 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo (Desktop) E6600 and Core 2 Extreme QX9775. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)no data+
Turbo Boost Technologyno data-
Hyper-Threading Technologyno data-
Idle Statesno data+
Thermal Monitoring-+
Demand Based Switchingno data-
FSB parityno data-
Statusno dataDiscontinued

Security technologies

Core 2 Duo (Desktop) E6600 and Core 2 Extreme QX9775 technologies aimed at improving security, for example, by protecting against hacks.

TXTno data-
EDBno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Duo (Desktop) E6600 and Core 2 Extreme QX9775 are enumerated here.

VT-xno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo (Desktop) E6600 and Core 2 Extreme QX9775. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesno dataDDR2

Pros & cons summary


Physical cores 2 4
Threads 2 4
Chip lithography 65 nm 45 nm
Power consumption (TDP) 65 Watt 150 Watt

Core 2 Duo E6600 has 130.8% lower power consumption.

Core 2 Extreme QX9775, on the other hand, has 100% more physical cores and 100% more threads, and a 44.4% more advanced lithography process.

We couldn't decide between Core 2 Duo E6600 and Core 2 Extreme QX9775. We've got no test results to judge.


Should you still have questions on choice between Core 2 Duo E6600 and Core 2 Extreme QX9775, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


Intel Core 2 Duo E6600
Core 2 Duo E6600
Intel Core 2 Extreme QX9775
Core 2 Extreme QX9775

Similar processor comparisons

We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.

Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


3.2 427 votes

Rate Core 2 Duo E6600 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3.8 40 votes

Rate Core 2 Extreme QX9775 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Core 2 Duo E6600 or Core 2 Extreme QX9775, agree or disagree with our judgements, or report an error or mismatch.