i7-940XM Extreme Edition vs i7-840QM

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Primary details

Comparing Core i7-840QM and Core i7-940XM Extreme Edition processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking2325not rated
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesIntel Core i7Intel Core i7EE
Power efficiency2.59no data
Architecture codenameClarksfield (2009−2010)Nehalem (2008−2010)
Release date20 June 2010 (14 years ago)5 February 2010 (14 years ago)
Launch price (MSRP)$568$1,096

Detailed specifications

Core i7-840QM and Core i7-940XM Extreme Edition 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)
Threads88
Base clock speed1.86 GHzno data
Boost clock speed3.2 GHz2.13 GHz
Bus typeDMI 1.0DMI
Bus rate2.5 GT/s2.5 GT/s
Multiplier1416
L1 cache64 KB (per core)256 KB
L2 cache256 KB (per core)1 MB
L3 cache8 MB (shared)8 MB
Chip lithography45 nm45 nm
Die size296 mm2296 mm2
Maximum core temperature100 °Cno data
Number of transistors774 million774 Million
64 bit support++
Windows 11 compatibility--

Compatibility

Information on Core i7-840QM and Core i7-940XM Extreme Edition 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 (Uniprocessor)
SocketFCPGA988,PGA988no data
Power consumption (TDP)45 Watt55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-840QM and Core i7-940XM Extreme Edition. 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+no data
Hyper-Threading Technology+no data
Idle States+no data
Thermal Monitoring+-
PAE36 Bitno data

Security technologies

Core i7-840QM and Core i7-940XM Extreme Edition technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDB+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-840QM and Core i7-940XM Extreme Edition are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-840QM and Core i7-940XM Extreme Edition. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3-1333
Maximum memory size8 GB8 GB
Max memory channels22
Maximum memory bandwidth21.335 GB/s21.335 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardNoneno data

Peripherals

Specifications and connection of peripherals supported by Core i7-840QM and Core i7-940XM Extreme Edition.

PCIe version22.0
PCI Express lanes1616

Pros & cons summary


Recency 20 June 2010 5 February 2010
Power consumption (TDP) 45 Watt 55 Watt

i7-840QM has an age advantage of 4 months, and 22.2% lower power consumption.

We couldn't decide between Core i7-840QM and Core i7-940XM Extreme Edition. We've got no test results to judge.


Should you still have questions on choice between Core i7-840QM and Core i7-940XM Extreme Edition, ask them in Comments section, and we shall answer.

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Intel Core i7-840QM
Core i7-840QM
Intel Core i7-940XM Extreme Edition
Core i7-940XM Extreme Edition

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Community ratings

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4.2 81 vote

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2.5 11 votes

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Questions & comments

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