i7-3940XM Extreme Edition vs i7-7820X

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Primary details

Comparing Core i7-7820X and Core i7-3940XM Extreme Edition processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking724not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation3.47no data
Market segmentDesktop processorLaptop
SeriesIntel Core i7Intel Core i7EE
Power efficiency7.31no data
Architecture codenameSkylake (server) (2017−2018)Ivy Bridge (2012−2013)
Release date26 June 2017 (7 years ago)no data
Launch price (MSRP)$599no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i7-7820X and Core i7-3940XM 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 cores8 (Octa-Core)4 (Quad-Core)
Threads168
Base clock speed3.6 GHzno data
Boost clock speed4.5 GHz3 GHz
Bus typeDMI 3.0DMI
Bus rate4 × 8 GT/s5 GT/s
Multiplier3630
L1 cache64 KB (per core)no data
L2 cache1 MB (per core)1 MB
L3 cache11 MB (shared)8 MB
Chip lithography14 nm22 nm
Maximum core temperature99 °Cno data
Maximum case temperature (TCase)72 °Cno data
64 bit support++
Windows 11 compatibility+no data
Unlocked multiplier+-

Compatibility

Information on Core i7-7820X and Core i7-3940XM 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)no data
SocketFCLGA2066no data
Power consumption (TDP)140 Watt55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-7820X and Core i7-3940XM Extreme Edition. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512no data
AES-NI++
AVX++
vProno data+
Enhanced SpeedStep (EIST)++
Turbo Boost Technology2.0no data
Hyper-Threading Technology+no data
TSX+-
Turbo Boost Max 3.0+no data

Security technologies

Core i7-7820X and Core i7-3940XM Extreme Edition technologies aimed at improving security, for example, by protecting against hacks.

TXTno data+
EDB+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-7820X and Core i7-3940XM Extreme Edition are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-7820X and Core i7-3940XM Extreme Edition. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-2666no data
Maximum memory size128 GB32 GB
Max memory channels4no data
Maximum memory bandwidth85.33 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardN/Ano data

Peripherals

Specifications and connection of peripherals supported by Core i7-7820X and Core i7-3940XM Extreme Edition.

PCIe version3.03.0
PCI Express lanes2816

Pros & cons summary


Physical cores 8 4
Threads 16 8
Chip lithography 14 nm 22 nm
Power consumption (TDP) 140 Watt 55 Watt

i7-7820X has 100% more physical cores and 100% more threads, and a 57.1% more advanced lithography process.

i7-3940XM Extreme Edition, on the other hand, has 154.5% lower power consumption.

We couldn't decide between Core i7-7820X and Core i7-3940XM Extreme Edition. We've got no test results to judge.

Note that Core i7-7820X is a desktop processor while Core i7-3940XM Extreme Edition is a notebook one.


Should you still have questions on choice between Core i7-7820X and Core i7-3940XM Extreme Edition, ask them in Comments section, and we shall answer.

Vote for your favorite

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Intel Core i7-7820X
Core i7-7820X
Intel Core i7-3940XM Extreme Edition
Core i7-3940XM Extreme Edition

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