Kaby Lake

Kaby Lake is an Intel codename for a processor microarchitecture Intel announced on August 30, 2016.[6] Like the preceding Skylake, Kaby Lake is produced using a 14 nanometer manufacturing process technology.[7] Breaking with Intel's previous "tick–tock" manufacturing and design model, Kaby Lake represents the optimized step of the newer "process-architecture-optimization" model.[8] Kaby Lake began shipping to manufacturers and OEMs in the second quarter of 2016,[9][10] and mobile chips have started shipping while Kaby Lake (desktop) chips were officially launched in January 2017.

Kaby Lake
General Info
LaunchedAugust 30, 2016 (August 30, 2016)
CPUID code0806e9h, 0806eah, 0906e9h
Product code80677
Performance
Max. CPU clock rate1.00 GHz to 4.5 GHz
Cache
L1 cache64 KiB per core
L2 cache256 KiB per core
L3 cacheUp to 8 MiB, shared
Architecture and classification
Architecturex86-64
Instructionsx86-64
Extensions
  • MMX, AES-NI, CLMUL, FMA3
  • SSE, SSE2, SSE3, SSSE3, SSE4, SSE4.1, SSE4.2
  • AVX, AVX2, TXT, TSX, SGX
  • VT-x, VT-d
Physical specifications
Transistors
  • 14 nm (Tri-Gate) transistors
Cores
  • 2–4
Socket(s)
  • LGA 1151
    LGA 1356
    LGA 2066
    BGA1356[1]
    BGA1440[2]
    BGA1515[3]
Products, models, variants
Brand name(s)
    • Core m3
    • Core m5
    • Core m7
    • Core i3
    • Core i5
    • Core i7
    • Celeron
    • Pentium
    • Xeon
History
PredecessorSkylake (Architecture)
SuccessorDesktop: Coffee Lake (2nd Optimization)
Mobile: Whiskey Lake (3rd Optimization)
Mobile: Cannon Lake (Process)
Mobile: Comet Lake
Servers and Desktop: Cascade Lake (3rd Optimization)[4][5]

In August 2017, Intel announced Kaby Lake Refresh (Kaby Lake R) marketed as the 8th generation mobile CPUs, breaking the long cycle where architectures matched the corresponding generations of CPUs.[11][12] Skylake was anticipated to be succeeded by the 10 nanometer Cannon Lake, but it was announced in July 2015 that Cannon Lake had been delayed until the second half of 2017.[13][14] In the meantime, Intel released a fourth 14 nm generation on October 5, 2017, named Coffee Lake.

Kaby Lake is the first Intel platform to lack official driver support for versions of Windows older than Windows 10.[15] Furthermore, Windows Update is disabled under Windows 8.1 and earlier, although an enthusiast-created modification was released that disabled the check and allowed it to continue to work on the platform.[16]

Development history

As with previous Intel processors (such as the 8088, Banias, Dothan, Conroe, Sandy Bridge, Ivy Bridge, and Skylake), Kaby Lake's development was led by Intel's Israeli team, based in Haifa.[17] Intel Israel Development Centers manager Ran Senderovitz said: "When we started out on the project, we were only thinking about basic improvements from the previous generation. But we began looking at things differently with a lot of innovation and determination and we achieved major improvements." He added that the performance of the seventh generation chips was improved by 12% for applications and 19% for Internet use compared with the sixth generation chips.[18] Third-party benchmarks do not confirm these percentages as far as gaming is concerned.[19]

Features

Built on an improved 14 nm process (14FF+), Kaby Lake features faster CPU clock speeds, clock speed changes, and higher Turbo frequencies. Beyond these process and clock speed changes, little of the CPU architecture has changed from Skylake,[20] resulting in identical IPC (Instructions Per Clock).[6]

Kaby Lake features a new graphics architecture to improve performance in 3D graphics and 4K video playback.[6][21] It adds native HDCP 2.2 support,[22] along with fixed function decode of H.264, HEVC Main and Main10/10-bit, and VP9 10-bit and 8-bit video.[20][23][24][25] Hardware encode is supported for H.264, HEVC Main10/10-bit, and VP9 8-bit video. VP9 10-bit encode is not supported in hardware. Both OpenGL 4.6 and OpenCL 2.1 are now supported.[26]

Kaby Lake is the first Core architecture to support hyper-threading for the Pentium-branded desktop CPU SKU. Kaby Lake also features the first overclocking-enabled i3-branded CPU.

Architecture changes compared to Skylake

Kaby Lake features the same CPU core and performance per MHz as Skylake. Features specific to Kaby Lake include:

  • Increased clock speeds on some CPUs models
  • Faster clock speed changes (improved Intel Speed Shift[27] technology): it takes less time for the CPU to transition from one frequency to another, e.g. from a low-power state to a high-performance state – consequently this may bring an increase in performance and responsiveness
  • Improved graphics core: full hardware fixed function HEVC/VP9 (including 4K@60fps/10bit) decoding;[28] improved hardware HEVC encoding; full hardware fixed function VP9 8bit encoding; higher GPU clock speeds for select CPUs
  • 200 series (Union Point) chipset on socket 1151 (Kaby Lake is compatible with 100 series chipset motherboards after a BIOS update)
  • Up to 16 PCI Express 3.0 lanes from the CPU, 24 PCI Express 3.0 lanes from PCH
  • Support for Intel Optane Memory storage caching (only on motherboards with the 200 series chipsets)
  • Support for PTWRITE instruction to write data to an Intel Processor Trace packet stream

Compatibility

Microsoft only officially supports Kaby Lake on computers running Windows 10 per support policies, and Windows Update blocks updates from being installed on Kaby Lake systems running versions older than Windows 10. In support of this position, Intel only provides chipset drivers for Windows 10.[29][30][15] An enthusiast-created modification was released that disabled the Windows Update check and allowed Windows 8.1 and earlier to continue to be updated on the platform.[16]

Known issues

Kaby Lake has a critical flaw where some short loops may cause unpredictable system behavior. The issue can be fixed if the motherboard manufacturer releases a BIOS update with the fix.[31][32]

TDP classification

Thermal design power or (TDP) is the designed maximum heat generated by the chip running a specific workload at base clock. On a single microarchitecture, as the heat produced increases with voltage and frequency, this thermal design limit can also limit the maximum frequency of the processor.[33] However, CPU testing and binning allows for products with lower voltage/power at a particular frequency, or higher frequency within the same power limit.[34][35]

Desktop processors:

  • High-power (K/X):
    • For dual-core: 60 W
    • For quad-core: 91 W (LGA1151) - 112W (LGA2066)
  • Medium-power:
    • For dual-core: 51...54 W
    • For quad-core: 65 W
  • Low-power (T): 35 W

Mobile processors:

  • High-power (H): 45 W with configurable TDP-down to 35 W
  • Medium-power (U): 15...28 W with configurable TDP-down to 7.5 W
  • Low-power (Y): 5...7 W with configurable TDP-down to 3.5 W

List of 7th generation Kaby Lake processors

Desktop processors

Features common to desktop Kaby Lake CPUs:

  • LGA 1151 socket (Except the Core i7 7740X and Core i5 7640X, which use the LGA 2066 socket.)
  • DMI 3.0 and PCIe 3.0 interfaces
  • Dual channel memory support in the following configurations: DDR3L-1600 1.35 V (32 GiB maximum) or DDR4-2400 1.2 V (64 GiB maximum)
    • The Core i7 7740X and Core i5 7640x support DDR4-2666 (64 GiB maximum), but do not support DDR3L memory.
  • A total of 16 PCIe lanes
  • The Core-branded processors support the AVX2 instruction set. The Celeron and Pentium-branded ones support only SSE4.1/4.2.
  • 350 MHz base graphics clock rate
    • The Core i7 7740X and Core i5 7640x do not have an integrated GPU.
  • No L4 cache (eDRAM)
  • A release date of January 3, 2017 (KBL-S) and June 2017 (KBL-X)
Processor
branding		 Model Cores
(threads)		 CPU
clock

rate

 Turbo clock GHz

Num of cores

 GPU Max GPU
clock rate		 L3
cache		 TDP Socket Price
(USD)
1 2 4
Core i7 7740X 4 (8) 4.3 GHz 4.5 4.5 4.5 N/A 8 MB 112 W LGA 2066 $350
7700K 4.2 GHz 4.5 4.4 4.4 HD 630 1150 MHz 91 W LGA 1151
7700 3.6 GHz 4.2 4.1 4.0 65 W $312
7700T 2.9 GHz 3.8 3.7 3.6 35 W
Core i5 7640X 4 (4) 4.0 GHz 4.2 4.2 4.0 N/A 6 MB 112W LGA 2066 $250
7600K 3.8 GHz 4.2 4.1 4.0 HD 630 1150 MHz 91 W LGA 1151
7600 3.5 GHz 4.1 4.0 3.9 65 W $224
7600T 2.8 GHz 3.7 3.6 3.5 1100 MHz 35 W
7500 3.4 GHz 3.8 3.7 3.6 65 W $202
7500T 2.7 GHz 3.3 3.2 3.1 35 W
7400 3.0 GHz 3.5 3.4 3.3 1000 MHz 65 W $182
7400T 2.4 GHz 3.0 2.9 2.7 35 W $187
Core i3 7350K 2 (4) 4.2 GHz N/A 1150 MHz 4 MB 60 W $179
7320 4.1 GHz 51 W $157
7300 4.0 GHz $147
7300T 3.5 GHz 1100 MHz 35 W
7100 3.9 GHz 3 MB 51 W $117
7100T 3.4 GHz 35 W
7101E 3.9 GHz 54 W
7101TE 3.4 GHz 35 W
Pentium G4620 3.7 GHz 51 W $93
G4600 3.6 GHz $82
G4600T 3.0 GHz 1050 MHz 35 W $75
G4560 3.5 GHz HD 610 54 W $64
G4560T 2.9 GHz 35 W
Celeron G3950 2 (2) 3.0 GHz 2 MB 51 W $52
G3930 2.9 GHz $42
G3930T 2.7 GHz 1000 MHz 35 W

Mobile processors

High power

Maximum PCIe Lanes: 16. Release date: Q1 2017.

Processor
branding		 Model Cores
(threads)		 CPU
clock
rate		 Turbo clock GHz

Num of cores

 GPU Max GPU

clock rate

 L3
cache		 TDP cTDP Price
(USD)
1 2 4 Max. Up Down
Core i7 7920HQ 4 (8) 3.1 GHz 4.1 3.9 3.7 HD 630 1100 MHz 8 MB 45 W N/A 35 W $568
7820HQ 2.9 GHz 3.9 3.7 3.5 $378
7820HK
7700HQ 2.8 GHz 3.8 3.6 3.4 6 MB
Core i5 7440HQ 4 (4) 1000 MHz $250
7300HQ 2.5 GHz 3.5 3.3 3.1
Core i3 7100H 2 (4) 3.0 GHz N/A 950 MHz 3 MB 35 W N/A $225

Low/medium power
Processor
branding		 Model Cores
(threads)		 CPU
clock
rate		 Turbo clock GHz GPU Max GPU
clock rate		 L3
cache		 L4
cache		 Max.
PCIe
lanes		 TDP cTDP Release
date		 Price
(USD)
Single
core		 Dual
core		 Up Down
Core i7 7Y75 2 (4) 1.3 GHz 3.6 GHz 3.4 GHz HD 615 1050 MHz 4 MB N/A 10 4.5 W 7 W 3.5 W Q3 2016 $393
7500U 2.7 GHz 3.5 GHz 3.5 GHz HD 620 12 15 W 25 W 7.5 W
7560U 2.4 GHz 3.8 GHz 3.7 GHz Iris Plus 640 64 MB N/A 9.5 W Q1 2017 $415
7660U 2.5 GHz 4.0 GHz 3.8 GHz 1100 MHz
7567U 3.5 GHz 4.0 GHz 3.9 GHz Iris Plus 650 1150 MHz 28 W 23 W ?
7600U 2.8 GHz 3.9 GHz 3.9 GHz HD 620 N/A 15 W 25 W 7.5 W $393
Core i5 7200U 2 (4) 2.5 GHz 3.1 GHz 3.1 GHz HD 620 1000 MHz 3 MB N/A 12 15 W 25 W 7.5 W Q3 2016 $281
7Y54 1.2 GHz 3.2 GHz 2.8 GHz HD 615 950 MHz 4 MB 10 4.5 W 7 W 3.5 W
7Y57 1.2 GHz 3.3 GHz 2.9 GHz 15 W Q1 2017
7260U 2.2 GHz 3.4 GHz 3.4 GHz Iris Plus 640 64 MB 12 N/A 9.5 W $304
7267U 3.1 GHz 3.5 GHz 3.5 GHz Iris Plus 650 1050 MHz 28 W 23 W ?
7287U 3.3 GHz 3.7 GHz 3.7 GHz 1100 MHz
7300U 2.6 GHz 3.5 GHz 3.5 GHz HD 620 3 MB N/A 15 W 25 W 7.5 W $281
7360U 2.3 GHz 3.6 GHz 3.6 GHz Iris Plus 640 1000 MHz 4 MB 64 MB N/A 9.5 W ?
Core i3 7100U 2 (4) 2.4 GHz N/A HD 620 1000 MHz 3 MB N/A 12 15 W N/A 7.5 W Q3 2016 $281
7167U 2.8 GHz Iris Plus 650 64 MB 28 W 23 W Q1 2017 ?
7130U 2.7 GHz HD 620 N/A 15 W 7.5 W Q2 2017 $281
7020U 2.3 GHz Q2 2018
Core m3 7Y32 2 (4) 1.1 GHz 3.0 GHz ? HD 615 900 MHz 4 MB N/A 10 4.5 W 7 W 3.75 W Q2 2017 $281
7Y30 1.0 GHz 2.6 GHz 3.5 W Q3 2016
Pentium Gold 4410Y 2 (4) 1.5 GHz N/A HD 615 850 MHz 2 MB N/A 10 6 W N/A 4.5 W Q1 2017 $161
4415Y 1.6 GHz
4415U 2.3 GHz HD 610 950 MHz 15 W 10 W
4417Y 12 12.5 W Q1 2019
4425Y 1.7 GHz HD 615 850 MHz 10 6 W 4.5 W
Celeron 3965U 2 (2) 2.2 GHz N/A HD 610 900 MHz 2 MB N/A 10 15 W N/A 10 W Q1 2017 $107
3865U 1.8 GHz
3965Y 1.5 GHz HD 615 850 MHz 6 W 4.5 W Q2 2017

Server/workstation Xeon processors
Target
segment		 Cores
(threads)		 Model CPU
clock
rate		 Turbo clock GHz

Num of cores

 GPU Max GPU

clock rate

 L3
cache		 TDP Release
date		 Price
(USD)
1 2 4
Server 4 (8) E3-1285 v6 4.1 GHz 4.5 ? HD P630 1150 MHz 8 MB 79 W Q3 2017 $450
E3-1280 v6 3.9 GHz 4.2 N/A 72 W Q1 2017 $612↘383
E3-1275 v6 3.8 GHz HD P630 1150 MHz 73 W $339
E3-1270 v6 N/A 72 W $328
E3-1245 v6 3.7 GHz 4.1 HD P630 1150 MHz 73 W $284
E3-1240 v6 N/A 72 W $272
E3-1230 v6 3.5 GHz 3.9 $250
4 (4) E3-1225 v6 3.3 GHz 3.7 HD P630 1150 MHz 73 W $213
E3-1220 v6 3.0 GHz 3.5 N/A 72 W $193
Mobile 4 (8) E3-1535M v6 3.1 GHz 4.2 HD P630 1100 MHz 45 W $623
E3-1505M v6 3.0 GHz 4.0 $434
Embedded E3-1505L v6 2.2 GHz 3.0 1000 MHz 25 W $433

List of 8th generation Kaby Lake processors

Mobile processors

Low/medium power
Processor
branding		 Model Cores
(threads)		 CPU
clock
rate		 CPU Turbo clock rate GPU Max GPU

clock rate

 L3
cache		 Max.
PCIe
lanes		 TDP cTDP Release
date		 Price
(USD)
Single
core		 Dual
core		 Up Down
Core i3 8130U 2 (4) 2.2 GHz 3.4 GHz ? UHD 620 1000 MHz 4 MB 12 15 W N/A 10 W Q1 2018 $281

List of 8th generation Kaby Lake R processors

Mobile processors

Low/medium power


In late 2016, it was reported that Intel had been working on a processor family codenamed “Kaby Lake R” ("R" stands for "refresh").[36] On August 21, 2017, the eighth generation mobile CPUs were announced.[37] The first products released were four "Kaby Lake R" processors with 15W TDP.[38] This marketing is distinct from previous generational changes of the Core product line, where a new generation coincided with a new microarchitecture.[39] Intel has stated that the 8th generation would be based on multiple microarchitectures, including Kaby Lake, Coffee Lake, and Cannon Lake.[40]

Processor
branding		 Model Cores
(threads)		 CPU
clock
rate		 Turbo clock GHz

Num of cores

 GPU Max GPU

clock rate

 L3
cache		 TDP cTDP Price
(USD)
1 2 4 Up Down
Core i7 8650U 4 (8) 1.9 GHz 4.2 4.2 3.9 UHD 620 1150 MHz 8 MB 15 W 25 W 10 W $409
8550U 1.8 GHz 4.0 4.0 3.7
Core i5 8350U 1.7 GHz 3.6 3.6 3.6 1100 MHz 6 MB $297
8250U 1.6 GHz 3.4 3.4 3.4

List of 8th generation Kaby Lake G processors

Mobile processors

High power

Maximum number of PCIe lanes: 8. One-package processors with discrete graphics chip - it is connected with main CPU core using a PCI Express link through an embedded multi-die interconnect bridge (EMIB). Release date: Q1 2018.

Processor
branding		 Model Cores
(threads)		 CPU
clock
rate		 Turbo clock GHz

Num of cores

 GPU Max GPU

clock rate

 Discrete GPU L3
cache		 TDP Price
(USD)
1 2 4
Core i7 8809G 4 (8) 3.1 GHz 4.2 Unknown HD 630 1100 MHz Radeon RX Vega M GH 8 MB 100 W ?
8709G 4.1 ?
8706G Radeon RX Vega M GL 65 W ?
8705G $523[41]
Core i5 8305G 2.8 GHz 3.8 6 MB ?

Discrete GPU specifications
Discrete GPU Units Clock rate Memory
Computing Shading Base Max. Size Bandwidth Bus type Bus width
Radeon RX Vega M GH 24 1536 1063 MHz 1190 MHz 4 GB 204.8 GB/s HBM2 1024 bit
Radeon RX Vega M GL 20 1280 931 MHz 1011 MHz 179.2 GB/s

List of 8th generation Amber Lake Y processors

On August 28, 2018 Intel announced a refreshed lineup of ultra low power mobile Kaby Lake CPUs under the moniker Amber Lake.[42]

Mobile processors

Low power
Processor

branding

 Model Cores

(threads)

 CPU clock rate GPU Max GPU

clock rate

 L3

cache

 TDP cTDP Price
Base Max turbo Up Down
Core i7 8510Y 2 (4) 1.8 GHz 3.9 GHz UHD 617 1050 MHz 4 MB 7 W N/A $393
8500Y 1.5 GHz 4.2 GHz UHD 615 5 W 7 W 3.5 W $393
Core i5 8310Y 1.6 GHz 3.9 GHz UHD 617 7 W N/A $281
8210Y 3.6 GHz N/A
8200Y 1.3 GHz 3.9 GHz UHD 615 950 MHz 5 W 7 W 3.5 W $291
Core m3 8100Y 1.1 GHz 3.4 GHz 900 MHz 8 W 4.5 W $281

List of 10th generation Amber Lake Y processors

On August 21, 2019 Intel announced the 10th gen Amber Lake ultra lower power CPUs.[43]

Mobile processors

Low power

See also
  • List of Intel CPU microarchitectures
  • List of Intel codenames
  • Xeon - enterprise workstation x86 microprocessors

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