Core 2 Extreme QX9775 vs Core 2 Quad Q9650

Primary details

Comparing Core 2 Quad Q9650 and Core 2 Extreme QX9775 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking2121not rated
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorDesktop processor
Power efficiency1.55no data
Architecture codenameYorkfield (2007−2009)Yorkfield (2007−2009)
Release dateAugust 2008 (16 years ago)March 2008 (16 years ago)

Detailed specifications

Core 2 Quad Q9650 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 cores4 (Quad-Core)4 (Quad-Core)
Threads44
Base clock speed3 GHz3.2 GHz
Boost clock speed3 GHz3.2 GHz
Bus rate1333 MHz1600 MHz
L1 cache64 KB (per core)64K (per core)
L2 cache6 MB (per die)12 MB (shared)
L3 cache0 KB0 KB
Chip lithography45 nm45 nm
Die size2x 107 mm22x 107 mm2
Maximum core temperature71 °Cno data
Maximum case temperature (TCase)no data63 °C
Number of transistors820 million820 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplier-+
VID voltage range0.85V-1.3625V0.85V-1.35V

Compatibility

Information on Core 2 Quad Q9650 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 configuration11
SocketLGA775LGA771
Power consumption (TDP)95 Watt150 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Quad Q9650 and Core 2 Extreme QX9775. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)++
Turbo Boost Technology--
Hyper-Threading Technology--
Idle States++
Thermal Monitoring++
Demand Based Switching--
FSB parity--

Security technologies

Core 2 Quad Q9650 and Core 2 Extreme QX9775 technologies aimed at improving security, for example, by protecting against hacks.

TXT+-
EDB++

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Quad Q9650 and Core 2 Extreme QX9775 are enumerated here.

VT-d+no data
VT-x++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q9650 and Core 2 Extreme QX9775. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1, DDR2, DDR3DDR2

Pros & cons summary


Power consumption (TDP) 95 Watt 150 Watt

Core 2 Quad Q9650 has 57.9% lower power consumption.

We couldn't decide between Core 2 Quad Q9650 and Core 2 Extreme QX9775. We've got no test results to judge.


Should you still have questions on choice between Core 2 Quad Q9650 and Core 2 Extreme QX9775, ask them in Comments section, and we shall answer.

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Intel Core 2 Quad Q9650
Core 2 Quad Q9650
Intel Core 2 Extreme QX9775
Core 2 Extreme QX9775

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Community ratings

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4.6 1629 votes

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3.7 45 votes

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Questions & comments

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