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Core i7-7740X
General Info
Designer	Intel
Manufacturer	Intel
Model Number	i7-7740X
Part Number	BX80677I77740X, BXC80677I77740X, CM8067702868631
S-Spec	SR3FP
Market	Desktop
Introduction	May 30, 2017 (announced) June 26, 2017 (launched)
End-of-life	November 30, 2018 (last order) May 31, 2019 (last shipment)
Release Price	$339
Shop	Amazon
General Specs
Family	Core i7
Series	i7-7700
Locked	No
Frequency	4,300 MHz
Turbo Frequency	4,500 MHz (1 core), 4,500 MHz (2 cores), 4,500 MHz (3 cores), 4,500 MHz (4 cores)
Bus type	DMI 3.0
Bus rate	4 × 8 GT/s
Microarchitecture
ISA	x86-64 (x86)
Microarchitecture	Kaby Lake
Platform	Basin Falls
Chipset	Lewisburg
Core Name	Kaby Lake X
Core Family	6
Core Model	158
Core Stepping	B0
Process	14 nm
Technology	CMOS
Word Size	64 bit
Cores	4
Threads	8
Max Memory	64 GiB
Multiprocessing
Max SMP	1-Way (Uniprocessor)
Electrical
TDP	112 W
Tstorage	-25 °C – 125 °C
Packaging
Package	FCLGA-2066 (LGA)
Dimension	52.5 mm × 45 mm
Pitch	1.016 mm
Contacts	2066
Socket	Socket R4

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

Cache

Main article: Kaby Lake § Cache

[Edit/Modify Cache Info]

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 262,144 B 0.25 MiB L1I$ 128 KiB 131,072 B 0.125 MiB 4x32 KiB 8-way set associative   L1D$ 128 KiB 131,072 B 0.125 MiB 4x32 KiB 8-way set associative write-back L2$ 1 MiB 1,024 KiB 1,048,576 B 9.765625e-4 GiB     4x256 KiB 4-way set associative write-back L3$ 8 MiB 8,192 KiB 8,388,608 B 0.00781 GiB     4x2 MiB   write-back

Memory controller

[Edit/Modify Memory Info]

	Integrated Memory Controller
	Max Type DDR4-2666 Supports ECC No Max Mem 64 GiB Controllers 1 Channels 2 Max Bandwidth 39.74 GiB/s 40,693.76 MiB/s 42.671 GB/s 42,670.5 MB/s 0.0388 TiB/s 0.0427 TB/s Bandwidth Single 19.87 GiB/s Double 39.74 GiB/s

Expansions

[Edit/Modify Expansions Info]

	Expansion Options
	PCIe Revision 3.0 Max Lanes 16 Configs 1x16, 2x8, 1x8+2x4

Graphics

This processor has no integrated graphics.

Features

[Edit/Modify Supported Features]

Supported x86 Extensions & Processor Features

MMX MMX Extension EMMX Extended MMX Extension SSE Streaming SIMD Extensions SSE2 Streaming SIMD Extensions 2 SSE3 Streaming SIMD Extensions 3 SSSE3 Supplemental SSE3 SSE4.1 Streaming SIMD Extensions 4.1 SSE4.2 Streaming SIMD Extensions 4.2 AVX Advanced Vector Extensions AVX2 Advanced Vector Extensions 2 ABM Advanced Bit Manipulation BMI1 Bit Manipulation Instruction Set 1 BMI2 Bit Manipulation Instruction Set 2 FMA3 3-Operand Fused-Multiply-Add AES AES Encryption Instructions RdRand Hardware RNG ADX Multi-Precision Add-Carry CLMUL Carry-less Multiplication Extension F16C 16-bit Floating Point Conversion x86-16 16-bit x86 x86-32 32-bit x86 x86-64 64-bit x86 Real Real Mode Protected Protected Mode SMM System Management Mode FPU Integrated x87 FPU NX No-eXecute HT Hyper-Threading TBT 2.0 Turbo Boost Technology 2.0 EIST Enhanced SpeedStep Technology VT-x VT-x (Virtualization) VT-d VT-d (I/O MMU virtualization) EPT Extended Page Tables (SLAT) TSX Transactional Synchronization Extensions MPX Memory Protection Extensions SGX Software Guard Extensions

Frequencies

See also: Intel's CPU Frequency Behavior

[Modify Frequency Info]

Mode	Base	Turbo Frequency/Active Cores
		1	2	3	4
Normal	4,300 MHz	4,500 MHz	4,500 MHz	4,500 MHz	4,500 MHz