i5-9400F vs i7-3910K

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Primary details

Comparing Core i7-3910K and Core i5-9400F processor market type (desktop or notebook), architecture, sales start time and price.

Place in the rankingnot rated1108
Place by popularitynot in top-10024
Cost-effectiveness evaluationno data9.42
Market segmentDesktop processorDesktop processor
Seriesno dataIntel Core i5
Power efficiencyno data8.68
Architecture codenameSandy Bridge-E (2011−2013)Coffee Lake-R (2018−2019)
Release date24 July 2013 (11 years ago)8 January 2019 (5 years ago)
Launch price (MSRP)no data$182

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i7-3910K and Core i5-9400F 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 cores6 (Hexa-Core)6 (Hexa-Core)
Threads126
Base clock speed3 GHz2.9 GHz
Boost clock speed3.6 GHz4.1 GHz
Bus typeno dataDMI 3.0
Bus rateno data4 × 8 GT/s
Multiplierno data29
L1 cache64 KB (per core)64K (per core)
L2 cache256 KB (per core)256K (per core)
L3 cache12 MB (shared)9 MB (shared)
Chip lithography32 nm14 nm
Die size435 mm2149 mm2
Maximum core temperatureno data100 °C
Maximum case temperature (TCase)67 °C72 °C
Number of transistors2,270 millionno data
64 bit support++
Windows 11 compatibility-+
Unlocked multiplier+-

Compatibility

Information on Core i7-3910K and Core i5-9400F 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 (Uniprocessor)
Socket2011FCLGA1151
Power consumption (TDP)130 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-3910K and Core i5-9400F. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI++
AVX++
Enhanced SpeedStep (EIST)++
Turbo Boost Technologyno data2.0
Hyper-Threading Technology+-
Idle Statesno data+
Thermal Monitoring-+

Security technologies

Core i7-3910K and Core i5-9400F technologies aimed at improving security, for example, by protecting against hacks.

TXTno data-
EDBno data+
Secure Keyno data+
MPX-+
Identity Protection-+
SGXno dataYes with Intel® ME
OS Guardno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-3910K and Core i5-9400F are enumerated here.

VT-d++
VT-x++
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-3910K and Core i5-9400F. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR4-2666
Maximum memory sizeno data128 GB
Max memory channelsno data2
Maximum memory bandwidthno data42.671 GB/s

Peripherals

Specifications and connection of peripherals supported by Core i7-3910K and Core i5-9400F.

PCIe version3.03.0
PCI Express lanesno data16

Pros & cons summary


Recency 24 July 2013 8 January 2019
Threads 12 6
Chip lithography 32 nm 14 nm
Power consumption (TDP) 130 Watt 65 Watt

i7-3910K has 100% more threads.

i5-9400F, on the other hand, has an age advantage of 5 years, a 128.6% more advanced lithography process, and 100% lower power consumption.

We couldn't decide between Core i7-3910K and Core i5-9400F. We've got no test results to judge.


Should you still have questions on choice between Core i7-3910K and Core i5-9400F, ask them in Comments section, and we shall answer.

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Intel Core i7-3910K
Core i7-3910K
Intel Core i5-9400F
Core i5-9400F

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Community ratings

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4.9 56769 votes

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Questions & comments

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