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Kaby Lake X
General Info
Designer	Intel
Manufacturer	Intel
Introduction	May 30, 2017 (announced) June 26, 2017 (launched)
Microarchitecture
ISA	x86-64
Microarchitecture	Kaby Lake
Word Size	8 octets 16 nibbles 64 bit
Process	14 nm 0.014 μm 1.4e-5 mm
Technology	CMOS
Clock	4,000 MHz - 4,300 MHz
Packaging
Template:packages/intel/lga-2066
Succession
Broadwell E Cannonlake X
Contemporary
Skylake X

Kaby Lake X (KBL-X) is the name of the core for Intel's high-end desktop (HEDT) microprocessor line based on the Kaby Lake microarchitecture serving as a successor to Broadwell E and a contemporary to Skylake X. Kaby Lake X processors are fabricated on Intel's enhanced 14nm+ process and feature considerably higher base clock when compared to the the mainstream desktop series of Kaby Lake models.

Overview

Kaby Lake X based processors are a 2-chip solution - the microprocessor and the chipset. Kaby Lake X are Socket R4 and use the Lewisburg chipset (HUB).

Common Features

All Kaby Lake X processors have the following:

• TDP: 112 W
• Dual-channel Memory
  • Up to DDR4-2666
  • Up to 64 GiB
• Everything up to AVX2 (SMM, FPU, NX, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AES, AVX, FMA3, AVX2)
• Support Turbo Boost 2.0, VT-x, VT-d, SpeedStep, Software Guard (SGX), and Memory Protection (MPX)

Kaby Lake X Processors

	List of Kaby Lake X Processors
	Main processor
Model	Launched	Price	Family	C	T	L3$	TDP	Freq	Turbo	Max Mem
i5-7640X	26 June 2017	$ 242.00 € 217.80 £ 196.02 ¥ 25,005.86	Core i5	4	4	6 MiB 6,144 KiB 6,291,456 B 0.00586 GiB	112 W 112,000 mW 0.15 hp 0.112 kW	4 GHz 4,000 MHz 4,000,000 kHz	4.2 GHz 4,200 MHz 4,200,000 kHz	64 GiB 65,536 MiB 67,108,864 KiB 68,719,476,736 B 0.0625 TiB
i7-7740X	26 June 2017	$ 339.00 € 305.10 £ 274.59 ¥ 35,028.87	Core i7	4	8	8 MiB 8,192 KiB 8,388,608 B 0.00781 GiB	112 W 112,000 mW 0.15 hp 0.112 kW	4.3 GHz 4,300 MHz 4,300,000 kHz	4.5 GHz 4,500 MHz 4,500,000 kHz	64 GiB 65,536 MiB 67,108,864 KiB 68,719,476,736 B 0.0625 TiB
Count: 2

See also

Kaby Lake Kaby Lake X Kaby Lake DT Kaby Lake S Kaby Lake G Kaby Lake H Kaby Lake R Kaby Lake U Kaby Lake Y

Power/Performance

• Skylake
  • Skylake X