Celeron D 340 vs Core 2 Quad Q9400

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Primary details

Comparing Core 2 Quad Q9400 and Celeron D 340 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking2243not rated
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorDesktop processor
Power efficiency1.33no data
Architecture codenameYorkfield (2007−2009)Prescott (2001−2005)
Release dateAugust 2008 (16 years ago)September 2004 (20 years ago)

Detailed specifications

Core 2 Quad Q9400 and Celeron D 340 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)1 (Single-Core)
Threads41
Base clock speed2.66 GHz2.93 GHz
Boost clock speed2.67 GHz2.93 GHz
Bus rate1333 MHzno data
L1 cache64K (per core)16 KB
L2 cache6 MB (shared)256 KB
L3 cache0 KB0 KB
Chip lithography45 nm90 nm
Die size2x 81 mm2109 mm2
Maximum core temperatureno data67 °C
Maximum case temperature (TCase)71 °Cno data
Number of transistors456 million125 million
64 bit support+-
Windows 11 compatibility--
VID voltage range0.85V-1.3625V1.25V-1.4V

Compatibility

Information on Core 2 Quad Q9400 and Celeron D 340 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
SocketLGA775PPGA478
Power consumption (TDP)95 Watt73 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Quad Q9400 and Celeron D 340. 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--
PAEno data32 Bit
FSB parity--

Security technologies

Core 2 Quad Q9400 and Celeron D 340 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 Q9400 and Celeron D 340 are enumerated here.

VT-d+no data
VT-x+-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q9400 and Celeron D 340. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1, DDR2, DDR3DDR1, DDR2, DDR3

Pros & cons summary


Physical cores 4 1
Threads 4 1
Chip lithography 45 nm 90 nm
Power consumption (TDP) 95 Watt 73 Watt

Core 2 Quad Q9400 has 300% more physical cores and 300% more threads, and a 100% more advanced lithography process.

Celeron D 340, on the other hand, has 30.1% lower power consumption.

We couldn't decide between Core 2 Quad Q9400 and Celeron D 340. We've got no test results to judge.


Should you still have questions on choice between Core 2 Quad Q9400 and Celeron D 340, ask them in Comments section, and we shall answer.

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Intel Core 2 Quad Q9400
Core 2 Quad Q9400
Intel Celeron D 340
Celeron D 340

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Community ratings

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4.3 1559 votes

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3.4 12 votes

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Questions & comments

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