i7-7740K vs i5-7640K

Primary details

Comparing Core i5-7640K and Core i7-7740K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the rankingnot ratednot rated
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorDesktop processor
Architecture codenameKaby Lake-X (2017)Kaby Lake-X (2017)
Release dateno data (2024 years ago)no data (2024 years ago)

Detailed specifications

Core i5-7640K and Core i7-7740K 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)
Boost clock speed3.9 GHz4.3 GHz
L1 cache64 KB (per core)64 KB (per core)
L2 cache256 KB (per core)256 KB (per core)
L3 cache6144 KB (shared)8192 KB (shared)
Chip lithography14 nm14 nm
Maximum case temperature (TCase)72 °C72 °C
64 bit support++
Windows 11 compatibility--
Unlocked multiplier++

Compatibility

Information on Core i5-7640K and Core i7-7740K 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
Socket11511151
Power consumption (TDP)112 Watt112 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-7640K and Core i7-7740K. You'll probably need this information if you require some particular technology.

AES-NI++
AVX++
Enhanced SpeedStep (EIST)++
TSX-+

Security technologies

Core i5-7640K and Core i7-7740K technologies aimed at improving security, for example, by protecting against hacks.

TXTno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-7640K and Core i7-7740K are enumerated here.

VT-dno data+
VT-x++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-7640K and Core i7-7740K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4DDR4

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataHD 630

Pros & cons summary


We couldn't decide between Core i5-7640K and Core i7-7740K. We've got no test results to judge.


Should you still have questions on choice between Core i5-7640K and Core i7-7740K, ask them in Comments section, and we shall answer.

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Intel Core i5-7640K
Core i5-7640K
Intel Core i7-7740K
Core i7-7740K

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Community ratings

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2.5 8 votes

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1.8 12 votes

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Questions & comments

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