Core 2 Quad Q9400s vs Core i7-740QM

Primary details

Comparing Core i7-740QM and Core 2 Quad Q9400s processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking2366not rated
Place by popularitynot in top-100not in top-100
Market segmentLaptopDesktop processor
SeriesIntel Core i7no data
Power efficiency2.41no data
Architecture codenameClarksfield (2009−2010)Yorkfield (2007−2009)
Release date22 June 2010 (14 years ago)18 January 2009 (15 years ago)
Launch price (MSRP)$546no data

Detailed specifications

Core i7-740QM and Core 2 Quad Q9400s 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)
Threads84
Base clock speed1.73 GHz2.66 GHz
Boost clock speed2.93 GHz0.67 GHz
Bus typeDMI 1.0no data
Bus rate2.5 GT/s1333 MHz
Multiplier13no data
L1 cache256 KB64 KB (per core)
L2 cache1 MB6 MB (shared)
L3 cache6 MB (shared)0 KB
Chip lithography45 nm45 nm
Die size296 mm22x 82 mm2
Maximum core temperature100 °Cno data
Maximum case temperature (TCase)no data76 °C
Number of transistors774 million456 million
64 bit support++
Windows 11 compatibility--
VID voltage rangeno data0.85V-1.3625V

Compatibility

Information on Core i7-740QM and Core 2 Quad Q9400s 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 configuration1 (Uniprocessor)1
SocketFCPGA988,PGA988LGA775
Power consumption (TDP)45 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-740QM and Core 2 Quad Q9400s. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.2no data
vPro+no data
Enhanced SpeedStep (EIST)++
Turbo Boost Technology+-
Hyper-Threading Technology+-
Idle States++
Thermal Monitoring++
Demand Based Switchingno data-
PAE36 Bitno data
FSB parityno data-

Security technologies

Core i7-740QM and Core 2 Quad Q9400s technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDB++

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-740QM and Core 2 Quad Q9400s are enumerated here.

VT-d++
VT-x++
EPT+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-740QM and Core 2 Quad Q9400s. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3-1066, DDR3-1333DDR1, DDR2, DDR3
Maximum memory size8 GBno data
Max memory channels2no data
Maximum memory bandwidth21.335 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardNoneOn certain motherboards (Chipset feature)

Peripherals

Specifications and connection of peripherals supported by Core i7-740QM and Core 2 Quad Q9400s.

PCIe version22.0
PCI Express lanes16no data

Pros & cons summary


Recency 22 June 2010 18 January 2009
Threads 8 4
Power consumption (TDP) 45 Watt 65 Watt

i7-740QM has an age advantage of 1 year, 100% more threads, and 44.4% lower power consumption.

We couldn't decide between Core i7-740QM and Core 2 Quad Q9400s. We've got no test results to judge.

Be aware that Core i7-740QM is a notebook processor while Core 2 Quad Q9400s is a desktop one.


Should you still have questions on choice between Core i7-740QM and Core 2 Quad Q9400s, ask them in Comments section, and we shall answer.

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Intel Core i7-740QM
Core i7-740QM
Intel Core 2 Quad Q9400s
Core 2 Quad Q9400s

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Community ratings

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4.2 156 votes

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3.5 23 votes

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Questions & comments

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