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Kaby Lake G
Package front
General Info
Designer	Intel, AMD
Manufacturer	Intel, GlobalFoundries
Introduction	November 6, 2017 (announced) January 7, 2018 (launched)
Microarchitecture
ISA	x86-64 (x86)
Microarchitecture	Kaby Lake
Word Size	8 octets 16 nibbles 64 bit
Process	14 nm 0.014 μm 1.4e-5 mm
Technology	CMOS

Kaby Lake G (KBL-G) is the name of the core for Intel's high-performance line of mobile processors based on the Kaby Lake microarchitecture and incorporate a discrete AMD Vega graphics processor. These chips are targeted towards ultimate mobile gaming experience. Kaby Lake G processors are fabricated on Intel's enhanced 14nm+ process and for graphics, GlobalFoundries 14 nm process.

Preliminary Data! Information presented in this article deal with future products, data, features, and specifications that have yet to be finalized, announced, or released. Information may be incomplete and can change by final release.

Overview

Kaby Lake G based processors are a 2-chip solution - the microprocessor and the chipset. Those parts are BGA and are soldered onto the motherboard. The microprocessor is connected to the chipset via 4 of the chip's 20 PCIe lanes using Intel's proprietary Direct Media Interface 3.0 (DMI 3.0), allowing for 8 GT/s transfer rate per lane.

Graphics

Those processors are unique in the fact that this is the first time Intel has integrated a discrete graphics processor into the same package as the microprocessor. This is also the first time they are using a competitor graphics processor. Those parts incorporate an AMD GPU based on the Vega microarchitecture and incorporate their own 4 GiB of high-bandwidth memory 2 (HBM2). The HBM solution is connected to the graphics processor using Intel's EMIB, a high-speed in-package interconnect solution.

The CPU itself is connected to the GPU using 8 of the other PCIe lanes, leaving the 8 remaining lanes for other peripherals to communicate with the CPU directly.

Common Features

All Kaby Lake G processors have the following:

• Dual-channel Memory
  • Up to DDR3L-1600, DDR4-2400
  • Up to 64 GiB
• 8x PCIe
  • 20x in total, 4 of the 20 are used by the bus and 8 for the GPU as described above
• quad-core with Hyper-Threading (8 threads)
• Everything up to AVX2 (SMM, FPU, NX, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AES, AVX, and AVX2)

Graphics

Those processors have superior graphics capabilities as well as 4 GiB of HBM 2 cache.

• HBM 2
  • 4 GiB
  • 1,024 bit
    • @ 800 MHz (204.8 GB/s peak bandwidth)
    • @ 700 MHz (179.2 GB/s peak bandwidth)
• Graphics
  • Integrated HD Graphics 630 (Gen9.5 GT2)
    • Base frequency of 350 MHz
    • Burst frequency of 1.1 GHz
  • Discrete Vega-based GPUs
    • Custom Radeon RX Vega M Graphics
      • Radeon RX Vega M GH
        • 24 Compute Units
        • 1,536 Stream processors, 64 pix/clk
        • 3.7 TFLOPS peak performance
      • Radeon RX Vega M GL
        • 20 Compute Units
        • 1280 Stream processors, 32 pix/clk
        • 2.6 TFLOPS peak performance
• BGA package

Kaby Lake G Processors

	List of Kaby Lake G-based Processors
	Main processor									Graphics Processors
Model	Price	Launched	Family	C	T	L3$	Frequency	Turbo	GPU	Base	Burst
i5-8305G		7 January 2018	Core i5	4	8	6 MiB 6,144 KiB 6,291,456 B 0.00586 GiB	2.8 GHz 2,800 MHz 2,800,000 kHz	3.8 GHz 3,800 MHz 3,800,000 kHz	HD Graphics 630, Radeon RX Vega M GL	350 MHz 0.35 GHz 350,000 KHz , 931 MHz 0.931 GHz 931,000 KHz	1,100 MHz 1.1 GHz 1,100,000 KHz , 1,011 MHz 1.011 GHz 1,011,000 KHz	{{{14}}}
i7-8705G		7 January 2018	Core i7	4	8	8 MiB 8,192 KiB 8,388,608 B 0.00781 GiB	3.1 GHz 3,100 MHz 3,100,000 kHz	4.1 GHz 4,100 MHz 4,100,000 kHz	HD Graphics 630, Radeon RX Vega M GL	350 MHz 0.35 GHz 350,000 KHz , 931 MHz 0.931 GHz 931,000 KHz	1,100 MHz 1.1 GHz 1,100,000 KHz , 1,011 MHz 1.011 GHz 1,011,000 KHz	{{{14}}}
i7-8706G		7 January 2018	Core i7	4	8	8 MiB 8,192 KiB 8,388,608 B 0.00781 GiB	3.1 GHz 3,100 MHz 3,100,000 kHz	4.1 GHz 4,100 MHz 4,100,000 kHz	HD Graphics 630, Radeon RX Vega M GL	350 MHz 0.35 GHz 350,000 KHz , 931 MHz 0.931 GHz 931,000 KHz	1,100 MHz 1.1 GHz 1,100,000 KHz , 1,011 MHz 1.011 GHz 1,011,000 KHz	{{{14}}}
i7-8809G		7 January 2018	Core i7	4	8	8 MiB 8,192 KiB 8,388,608 B 0.00781 GiB	3.1 GHz 3,100 MHz 3,100,000 kHz	4.2 GHz 4,200 MHz 4,200,000 kHz	HD Graphics 630, Radeon RX Vega M GH	350 MHz 0.35 GHz 350,000 KHz , 1,063 MHz 1.063 GHz 1,063,000 KHz	1,100 MHz 1.1 GHz 1,100,000 KHz , 1,190 MHz 1.19 GHz 1,190,000 KHz	{{{14}}}
Count: 4

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