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Core i7-7740K - Intel
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Core i7-7740K
Designer Intel
Manufacturer Intel
Model Number i7-7740K
Part Number BX80677I77740K, BXC80677I77740K
Market Desktop
Introduction 2017 (launch)
General information
Family Core i7
Series i7-7700
Locked No
Frequency
4.3 GHz
4,300,000 kHz
4,300 MHz
Turbo frequency
4.5 GHz
4,500,000 kHz
4,500 MHz (1 core)
4.5 GHz
4,500,000 kHz
4,500 MHz (2 cores)
Bus type DMI 3.0
Bus rate 8 GT/s
8,000 MT/s
8,000,000 kT/s
Microarchitecture
ISA x86-64 (x86)
Microarchitecture Kaby Lake
Platform Kaby Lake
Chipset Lewisburg
Core name Kaby Lake X
Process 14 nm
0.014 μm
1.4e-5 mm
Technology CMOS
Word size 64 bit
8 octets
16 nibbles
Core count 4
Thread count 8
Max CPUs 1
Max Memory 128 GiB
131,072 MiB
134,217,728 KiB
137,438,953,472 B
0.125 TiB
Electrical
TDP
112,000 mW
0.15 hp
0.112 kW
112 W
Tstorage -25 °C
248.15 K
-13 °F
446.67 °R
 – 125 °C
398.15 K
257 °F
716.67 °R
Packaging
PackageFCLGA-2066 (LGA)
Contacts2066
SocketSocket R4

Core i7-7740K is a 64-bit quad-core high-end performance x86 desktop microprocessor set to be introduced by Intel in 2017. This processor, which is based on the Kaby Lake microarchitecture, is manufactured on Intel's improved 14nm+ process. The i7-7740K operates at 4.3 GHz with a TDP of 112 W and with a Turbo Boost frequency of 4.5 GHz for a single active core. This MPU supports up to 128 GiB of dual-channel non-ECC DDR4-2666 memory.


DIL16 Blank.svg Preliminary Data! Information presented in this article deal with a microprocessor or chip that was recently announced or leaked, thus missing information regarding its features and exact specification. Information may be incomplete and can change by final release.

Cache[edit]

Main article: Kaby Lake § Cache

[Edit/Modify Cache Info]

hierarchy icon.svg
Cache Organization
Cache is a hardware component containing a relatively small and extremely fast memory designed to speed up the performance of a CPU by preparing ahead of time the data it needs to read from a relatively slower medium such as main memory.

The organization and amount of cache can have a large impact on the performance, power consumption, die size, and consequently cost of the IC.

Cache is specified by its size, number of sets, associativity, block size, sub-block size, and fetch and write-back policies.

Note: All units are in kibibytes and mebibytes.
L1$256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
L1I$128 KiB
0.125 MiB
131,072 B
1.220703e-4 GiB
4x32 KiB8-way set associative 
L1D$128 KiB
0.125 MiB
131,072 B
1.220703e-4 GiB
4x32 KiB8-way set associativewrite-back

L2$1 MiB
1,024 KiB
1,048,576 B
9.765625e-4 GiB
  4x256 KiB4-way set associativewrite-back

L3$8 MiB
8,192 KiB
8,388,608 B
0.00781 GiB
  4x2 MiB write-back

Memory controller[edit]

[Edit/Modify Memory Info]

ram icons.svg
Integrated Memory Controller
Max TypeDDR4-2666
Supports ECCNo
Max Mem128 GiB
Controllers1
Channels2
Max Bandwidth39.74 GiB/s
Bandwidth
Single 19.87 GiB/s
Double 39.74 GiB/s

Expansions[edit]

[Edit/Modify Expansions Info]

ide icon.svg
Expansion Options
PCIe
Revision3.0
Max Lanes16
Configs1x16, 2x8, 1x8+2x4

Graphics[edit]

This processor has no integrated graphics.

Features[edit]

[Edit/Modify Supported Features]

Cog-icon-grey.svg
Supported x86 Extensions & Processor Features
MMXMMX Extension
EMMXExtended MMX Extension
SSEStreaming SIMD Extensions
SSE2Streaming SIMD Extensions 2
SSE3Streaming SIMD Extensions 3
SSSE3Supplemental SSE3
SSE4.1Streaming SIMD Extensions 4.1
SSE4.2Streaming SIMD Extensions 4.2
AVXAdvanced Vector Extensions
AVX2Advanced Vector Extensions 2
ABMAdvanced Bit Manipulation
BMI1Bit Manipulation Instruction Set 1
BMI2Bit Manipulation Instruction Set 2
FMA33-Operand Fused-Multiply-Add
AESAES Encryption Instructions
RdRandHardware RNG
ADXMulti-Precision Add-Carry
CLMULCarry-less Multiplication Extension
F16C16-bit Floating Point Conversion
x86-1616-bit x86
x86-3232-bit x86
x86-6464-bit x86
RealReal Mode
ProtectedProtected Mode
SMMSystem Management Mode
FPUIntegrated x87 FPU
NXNo-eXecute
HTHyper-Threading
TBT 2.0Turbo Boost Technology 2.0
TBMT 3.0Turbo Boost Max Technology 3.0
EISTEnhanced SpeedStep Technology
VT-xVT-x (Virtualization)
VT-dVT-d (I/O MMU virtualization)
EPTExtended Page Tables (SLAT)
TSXTransactional Synchronization Extensions
MPXMemory Protection Extensions
SGXSoftware Guard Extensions
Secure KeySecure Key Technology
OS GuardOS Guard Technology
ISRTSmart Response Technology
Facts about "Core i7-7740K - Intel"
Has subobject
"Has subobject" is a predefined property representing a container construct and is provided by Semantic MediaWiki.
Core i7-7740K - Intel#package +
base frequency4,300 MHz (4.3 GHz, 4,300,000 kHz) +
bus rate8,000 MT/s (8 GT/s, 8,000,000 kT/s) +
bus typeDMI 3.0 +
chipsetLewisburg +
core count4 +
core nameKaby Lake X +
designerIntel +
first launched2017 +
full page nameintel/core i7/i7-7740k +
has advanced vector extensionstrue +
has advanced vector extensions 2true +
has ecc memory supportfalse +
has featureAdvanced Vector Extensions +, Advanced Vector Extensions 2 +, Advanced Encryption Standard Instruction Set Extension +, Hyper-Threading Technology +, Turbo Boost Technology 2.0 +, Turbo Boost Max Technology 3.0 +, Enhanced SpeedStep Technology +, Intel VT-x +, Intel VT-d +, Transactional Synchronization Extensions +, Secure Key Technology + and Smart Response Technology +
has intel enhanced speedstep technologytrue +
has intel secure key technologytrue +
has intel smart response technology supporttrue +
has intel turbo boost max technology 3 0true +
has intel turbo boost technology 2 0true +
has intel vt-d technologytrue +
has intel vt-x technologytrue +
has simultaneous multithreadingtrue +
has transactional synchronization extensionstrue +
has x86 advanced encryption standard instruction set extensiontrue +
instance ofmicroprocessor +
isax86-64 +
isa familyx86 +
l1$ size0.25 MiB (256 KiB, 262,144 B, 2.441406e-4 GiB) +
l1d$ description8-way set associative +
l1d$ size0.125 MiB (128 KiB, 131,072 B, 1.220703e-4 GiB) +
l1i$ description8-way set associative +
l1i$ size0.125 MiB (128 KiB, 131,072 B, 1.220703e-4 GiB) +
l2$ description4-way set associative +
l2$ size1 MiB (1,024 KiB, 1,048,576 B, 9.765625e-4 GiB) +
l3$ size8 MiB (8,192 KiB, 8,388,608 B, 0.00781 GiB) +
ldate3000 +
manufacturerIntel +
market segmentDesktop +
max cpu count1 +
max memory131,072 MiB (134,217,728 KiB, 137,438,953,472 B, 128 GiB, 0.125 TiB) +
max storage temperature398.15 K (125 °C, 257 °F, 716.67 °R) +
microarchitectureKaby Lake +
microprocessor familyCore i7 +
microprocessor seriesi7-7700 +
min storage temperature248.15 K (-25 °C, -13 °F, 446.67 °R) +
model numberi7-7740K +
nameCore i7-7740K +
packageFCLGA-2066 +
part numberBX80677I77740K + and BXC80677I77740K +
platformKaby Lake +
process14 nm (0.014 μm, 1.4e-5 mm) +
socketSocket R4 +
supported memory typeDDR4-2666 +
tdp112 W (112,000 mW, 0.15 hp, 0.112 kW) +
technologyCMOS +
thread count8 +
turbo frequency (1 core)4,500 MHz (4.5 GHz, 4,500,000 kHz) +
turbo frequency (2 cores)4,500 MHz (4.5 GHz, 4,500,000 kHz) +
word size64 bit (8 octets, 16 nibbles) +