From WikiChip
Difference between revisions of "intel/cores/kaby lake u"
< intel

(Common Features)
m (Reverted edits by 5.76.178.65 (talk) to last revision by 172.220.136.78)
 
(16 intermediate revisions by 7 users not shown)
Line 1: Line 1:
 
{{intel title|Kaby Lake U|core}}
 
{{intel title|Kaby Lake U|core}}
 
{{core
 
{{core
| name             = Kaby Lake U
+
|name=Kaby Lake U
| image             = kaby lake u (front; iris).png
+
|image=kaby lake u (front; iris).png
| image size       = 250px
+
|image size=250px
| caption           = 3-die config Iris Plus KBL-U (with OPC)
+
|caption=3-die config Iris Plus KBL-U (with OPC)
| image 2           = kaby lake u (front; standard).png
+
|image 2=kaby lake u (front; standard).png
| image 2 size     = 250px
+
|image 2 size=250px
| caption 2         = 2-die config KBL-U
+
|caption 2=2-die config KBL-U
| developer         = Intel
+
|developer=Intel
| manufacturer     = Intel
+
|manufacturer=Intel
| first announced   = August 30, 2016
+
|first announced=August 30, 2016
| first launched   = August 30, 2016
+
|first launched=August 30, 2016
| isa               = x86-64
+
|isa=x86-64
| microarch         = Kaby Lake
+
|microarch=Kaby Lake
| word             = 64 bit
+
|word=64 bit
| proc             = 14 nm
+
|proc=14 nm
| tech             = CMOS
+
|tech=CMOS
| clock min         = 1,800 MHz
+
|clock min=1,800 MHz
| clock max         = 3,500 MHz
+
|clock max=3,500 MHz
| package           = FCBGA-1356
+
|package module 1={{packages/intel/fcbga-1356}}
| socket            = BGA-1356
+
|predecessor=Skylake U
 
+
|predecessor link=intel/cores/skylake u
| succession      = Yes
+
|successor=Kaby Lake R
| predecessor      = Skylake U
+
|successor link=intel/cores/kaby lake r
| predecessor link = intel/cores/skylake u
+
|successor 2=Coffee Lake U
| successor       = Cannonlake U
+
|successor 2 link=intel/cores/coffee lake u
| successor link   = intel/cores/cannonlake u
 
 
}}
 
}}
'''Kaby Lake U''' ('''KBL-U''') is the name of the core for [[Intel]]'s line of low-power mobile processors based on the {{intel|Kaby Lake|l=arch}} microarchitecture serving as a successor to {{intel|Skylake U|l=core}} core. These chips are primarily targeted towards light notebooks and laptops, portable All-in-Ones (AiOs), Minis, and conference rooms. Kaby Lake U processors are fabricated on Intel's enhanced [[14 nm lithography process|14nm+ process]] and provide {{intel|kaby_lake#Key_changes_from_Skylake|slight enhancements over|l=arch}} comparable Skylake models.
+
'''Kaby Lake U''' ('''KBL-U''') is the name of the core for [[Intel]]'s line of low-power mobile processors based on the {{intel|Kaby Lake|l=arch}} microarchitecture serving as a successor to {{intel|Skylake U|l=core}}. These chips are primarily targeted towards light notebooks and laptops, portable all-in-ones (AiOs), minis, and conference rooms. Kaby Lake U processors are fabricated on Intel's enhanced [[14 nm lithography process|14nm+ process]] and provide {{intel|kaby_lake#Key_changes_from_Skylake|slight enhancements over|l=arch}} comparable Skylake models.
  
 
== Overview ==
 
== Overview ==
Kaby Lake U based processors are a single-chip solution - the chipset is packaged in the same physical casing as the CPU in a [[multi-chip package]] (MCP). Note that some models (the Iris [[IGP]]s) are actually a 3 dice chip configuration since they incorporate an on-package cache (OPC) in addition to the hub and CPU. Communication between the separate dies are done via a lightweight On-Package Interconnect (OPI) interface, allowing for 4 GT/s transfer rate. All Kaby Lake U processors use {{intel|BGA-1356|Socket BGA-1356}} and all Iris models include 64 MiB of 4th level cache (See {{intel|Crystal Well}}).
+
Kaby Lake U based processors are a single-chip solution - the chipset is packaged in the same physical casing as the CPU in a [[multi-chip package]] (MCP). Note that some models (the Iris [[IGP]]s) are actually a 3 dice chip configuration since they incorporate an on-package cache (OPC) in addition to the hub and CPU. Communication between the separate dies are done via a lightweight On-Package Interconnect (OPI) interface, allowing for 4 GT/s transfer rate. All Kaby Lake U processors use {{intel|BGA-1356|Socket BGA-1356}} and all Iris models include 64 MiB of side cache.
  
 
{| class="wikitable"
 
{| class="wikitable"
Line 45: Line 44:
 
|}
 
|}
 
=== Common Features ===
 
=== Common Features ===
 +
[[File:kaby lake u (front; iris) angled.png|right|300px]]
 
All Kaby Lake U processors have the following:
 
All Kaby Lake U processors have the following:
  
 
* Dual-channel Memory
 
* Dual-channel Memory
** Up to LPDDR3-1866, DDR3L-1600, DDR4-2133
+
** Up to LPDDR3-1866, DDR3L-1600, DDR3L-2133, and DDR4-2133
 
** Up to 16-64 GiB
 
** Up to 16-64 GiB
 
* 12x PCIe
 
* 12x PCIe
 
* [[dual-core]] with 4 threads ({{intel|Celeron}} models only have 2 threads as they have {{intel|Hyper-Threading}} disabled)
 
* [[dual-core]] with 4 threads ({{intel|Celeron}} models only have 2 threads as they have {{intel|Hyper-Threading}} disabled)
* Everything up to AVX (SMM, FPU, NX, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AES, AVX) (not all U models support {{x86|AVX2}})
+
* Everything up to AVX2 (SMM, FPU, NX, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AES, AVX1, AVX2)
 +
** (Except for Pentium/Celeron which do not have AVX1/2)
 
* Support [[AHCI]], [[High Definition Audio]], 4-6x [[USB 3.0]] ports, 8-10x [[USB 2.0]] ports, 2-4x [[SATA III]], 6x [[I2C]], 3x [[UART]], 1x [[SDXC]]
 
* Support [[AHCI]], [[High Definition Audio]], 4-6x [[USB 3.0]] ports, 8-10x [[USB 2.0]] ports, 2-4x [[SATA III]], 6x [[I2C]], 3x [[UART]], 1x [[SDXC]]
 
* Graphics
 
* Graphics
Line 92: Line 93:
 
  |?integrated gpu base frequency
 
  |?integrated gpu base frequency
 
  |?integrated gpu max frequency
 
  |?integrated gpu max frequency
  |?has intel turbo boost technology 2.0
+
  |?has intel turbo boost technology 2_0
 
  |?has simultaneous multithreading
 
  |?has simultaneous multithreading
 
  |?has advanced vector extensions 2
 
  |?has advanced vector extensions 2
Line 112: Line 113:
  
 
== See also ==
 
== See also ==
* {{intel|Kaby Lake|l=arch}}
+
{{intel kaby lake core see also}}
** {{intel|Kaby Lake Y|l=core}}
+
* {{intel|Skylake|l=arch}}
** {{intel|Kaby Lake H|l=core}}
+
** {{intel|Skylake U|l=core}}
** {{intel|Kaby Lake S|l=core}}
 
* {{intel|Skylake U|l=core}}
 
* {{intel|Goldmont|l=arch}}
 

Latest revision as of 13:10, 29 February 2020

Edit Values
Kaby Lake U
kaby lake u (front; iris).png
3-die config Iris Plus KBL-U (with OPC)
kaby lake u (front; standard).png
2-die config KBL-U
General Info
DesignerIntel
ManufacturerIntel
IntroductionAugust 30, 2016 (announced)
August 30, 2016 (launched)
Microarchitecture
ISAx86-64
MicroarchitectureKaby Lake
Word Size
8 octets
16 nibbles
64 bit
Process14 nm
0.014 μm
1.4e-5 mm
TechnologyCMOS
Clock1,800 MHz - 3,500 MHz
Packaging
PackageFCBGA-1356 (BGA)
Dimension42 mm x 24 mm x 1.3 mm
Pitch0.65 mm
Ball Count1356
Ball CompSAC405
InterconnectBGA-1356
Succession

Kaby Lake U (KBL-U) is the name of the core for Intel's line of low-power mobile processors based on the Kaby Lake microarchitecture serving as a successor to Skylake U. These chips are primarily targeted towards light notebooks and laptops, portable all-in-ones (AiOs), minis, and conference rooms. Kaby Lake U processors are fabricated on Intel's enhanced 14nm+ process and provide slight enhancements over comparable Skylake models.

Overview[edit]

Kaby Lake U based processors are a single-chip solution - the chipset is packaged in the same physical casing as the CPU in a multi-chip package (MCP). Note that some models (the Iris IGPs) are actually a 3 dice chip configuration since they incorporate an on-package cache (OPC) in addition to the hub and CPU. Communication between the separate dies are done via a lightweight On-Package Interconnect (OPI) interface, allowing for 4 GT/s transfer rate. All Kaby Lake U processors use Socket BGA-1356 and all Iris models include 64 MiB of side cache.

Standard Premium
2-die configuration 3-die configuration
GT2 Graphics GT3 Graphics with OPC
kaby lake u (front; standard).png kaby lake u (front; iris).png
kaby lake u (back; standard).png kaby lake u (back; iris).png

Common Features[edit]

kaby lake u (front; iris) angled.png

All Kaby Lake U processors have the following:

Kaby Lake U Processors[edit]

 List of Kaby Lake U Processors
 Main processorIGPMajor Feature Diff
ModelLaunchedPriceFamilyCTL3$L4$TDPFreqTurboMax MemNameFreqTurboTBTHTAVX2TXTTSXvPro
3865U3 January 2017Celeron222 MiB
2,048 KiB
2,097,152 B
0.00195 GiB
15 W
15,000 mW
0.0201 hp
0.015 kW
1.8 GHz
1,800 MHz
1,800,000 kHz
64 GiB
65,536 MiB
67,108,864 KiB
68,719,476,736 B
0.0625 TiB
HD Graphics 610300 MHz
0.3 GHz
300,000 KHz
900 MHz
0.9 GHz
900,000 KHz
3965U3 January 2017$ 107.00
€ 96.30
£ 86.67
¥ 11,056.31
Celeron222 MiB
2,048 KiB
2,097,152 B
0.00195 GiB
15 W
15,000 mW
0.0201 hp
0.015 kW
2.2 GHz
2,200 MHz
2,200,000 kHz
64 GiB
65,536 MiB
67,108,864 KiB
68,719,476,736 B
0.0625 TiB
HD Graphics 610300 MHz
0.3 GHz
300,000 KHz
900 MHz
0.9 GHz
900,000 KHz
i3-7007UCore i3243 MiB
3,072 KiB
3,145,728 B
0.00293 GiB
15 W
15,000 mW
0.0201 hp
0.015 kW
2.1 GHz
2,100 MHz
2,100,000 kHz
32 GiB
32,768 MiB
33,554,432 KiB
34,359,738,368 B
0.0313 TiB
HD Graphics 620300 MHz
0.3 GHz
300,000 KHz
1,000 MHz
1 GHz
1,000,000 KHz
i3-7020U10 April 2018$ 281.00
€ 252.90
£ 227.61
¥ 29,035.73
Core i3243 MiB
3,072 KiB
3,145,728 B
0.00293 GiB
15 W
15,000 mW
0.0201 hp
0.015 kW
2.3 GHz
2,300 MHz
2,300,000 kHz
32 GiB
32,768 MiB
33,554,432 KiB
34,359,738,368 B
0.0313 TiB
HD Graphics 620300 MHz
0.3 GHz
300,000 KHz
1,000 MHz
1 GHz
1,000,000 KHz
i3-7100U30 August 2016$ 281.00
€ 252.90
£ 227.61
¥ 29,035.73
Core i3243 MiB
3,072 KiB
3,145,728 B
0.00293 GiB
15 W
15,000 mW
0.0201 hp
0.015 kW
2.4 GHz
2,400 MHz
2,400,000 kHz
32 GiB
32,768 MiB
33,554,432 KiB
34,359,738,368 B
0.0313 TiB
HD Graphics 620300 MHz
0.3 GHz
300,000 KHz
1,000 MHz
1 GHz
1,000,000 KHz
i3-7110UCore i3243 MiB
3,072 KiB
3,145,728 B
0.00293 GiB
15 W
15,000 mW
0.0201 hp
0.015 kW
2.6 GHz
2,600 MHz
2,600,000 kHz
32 GiB
32,768 MiB
33,554,432 KiB
34,359,738,368 B
0.0313 TiB
HD Graphics 620300 MHz
0.3 GHz
300,000 KHz
1,000 MHz
1 GHz
1,000,000 KHz
i3-7130U12 June 2017Core i3243 MiB
3,072 KiB
3,145,728 B
0.00293 GiB
15 W
15,000 mW
0.0201 hp
0.015 kW
2.7 GHz
2,700 MHz
2,700,000 kHz
32 GiB
32,768 MiB
33,554,432 KiB
34,359,738,368 B
0.0313 TiB
HD Graphics 620300 MHz
0.3 GHz
300,000 KHz
1,000 MHz
1 GHz
1,000,000 KHz
i3-7167U3 January 2017$ 304.00
€ 273.60
£ 246.24
¥ 31,412.32
Core i3243 MiB
3,072 KiB
3,145,728 B
0.00293 GiB
64 MiB
65,536 KiB
67,108,864 B
0.0625 GiB
28 W
28,000 mW
0.0375 hp
0.028 kW
2.8 GHz
2,800 MHz
2,800,000 kHz
32 GiB
32,768 MiB
33,554,432 KiB
34,359,738,368 B
0.0313 TiB
Iris Plus Graphics 650300 MHz
0.3 GHz
300,000 KHz
1,000 MHz
1 GHz
1,000,000 KHz
i3-7310UCore i3243 MiB
3,072 KiB
3,145,728 B
0.00293 GiB
15 W
15,000 mW
0.0201 hp
0.015 kW
2.7 GHz
2,700 MHz
2,700,000 kHz
32 GiB
32,768 MiB
33,554,432 KiB
34,359,738,368 B
0.0313 TiB
HD Graphics 620300 MHz
0.3 GHz
300,000 KHz
1,000 MHz
1 GHz
1,000,000 KHz
i3-8130U12 February 2018$ 281.00
€ 252.90
£ 227.61
¥ 29,035.73
Core i3244 MiB
4,096 KiB
4,194,304 B
0.00391 GiB
15 W
15,000 mW
0.0201 hp
0.015 kW
2.2 GHz
2,200 MHz
2,200,000 kHz
3.4 GHz
3,400 MHz
3,400,000 kHz
32 GiB
32,768 MiB
33,554,432 KiB
34,359,738,368 B
0.0313 TiB
UHD Graphics 620300 MHz
0.3 GHz
300,000 KHz
1,000 MHz
1 GHz
1,000,000 KHz
i5-7200U30 August 2016$ 281.00
€ 252.90
£ 227.61
¥ 29,035.73
Core i5243 MiB
3,072 KiB
3,145,728 B
0.00293 GiB
15 W
15,000 mW
0.0201 hp
0.015 kW
2.5 GHz
2,500 MHz
2,500,000 kHz
3.1 GHz
3,100 MHz
3,100,000 kHz
32 GiB
32,768 MiB
33,554,432 KiB
34,359,738,368 B
0.0313 TiB
HD Graphics 620300 MHz
0.3 GHz
300,000 KHz
1,000 MHz
1 GHz
1,000,000 KHz
i5-7210UCore i5243 MiB
3,072 KiB
3,145,728 B
0.00293 GiB
15 W
15,000 mW
0.0201 hp
0.015 kW
2.5 GHz
2,500 MHz
2,500,000 kHz
3.3 GHz
3,300 MHz
3,300,000 kHz
32 GiB
32,768 MiB
33,554,432 KiB
34,359,738,368 B
0.0313 TiB
HD Graphics 620300 MHz
0.3 GHz
300,000 KHz
1,000 MHz
1 GHz
1,000,000 KHz
i5-7260U3 January 2017$ 304.00
€ 273.60
£ 246.24
¥ 31,412.32
Core i5244 MiB
4,096 KiB
4,194,304 B
0.00391 GiB
64 MiB
65,536 KiB
67,108,864 B
0.0625 GiB
15 W
15,000 mW
0.0201 hp
0.015 kW
2.2 GHz
2,200 MHz
2,200,000 kHz
3.4 GHz
3,400 MHz
3,400,000 kHz
32 GiB
32,768 MiB
33,554,432 KiB
34,359,738,368 B
0.0313 TiB
Iris Plus Graphics 640300 MHz
0.3 GHz
300,000 KHz
950 MHz
0.95 GHz
950,000 KHz
i5-7267U3 January 2017$ 304.00
€ 273.60
£ 246.24
¥ 31,412.32
Core i5244 MiB
4,096 KiB
4,194,304 B
0.00391 GiB
64 MiB
65,536 KiB
67,108,864 B
0.0625 GiB
28 W
28,000 mW
0.0375 hp
0.028 kW
3.1 GHz
3,100 MHz
3,100,000 kHz
3.5 GHz
3,500 MHz
3,500,000 kHz
32 GiB
32,768 MiB
33,554,432 KiB
34,359,738,368 B
0.0313 TiB
Iris Plus Graphics 650300 MHz
0.3 GHz
300,000 KHz
1,050 MHz
1.05 GHz
1,050,000 KHz
i5-7287U3 January 2017$ 304.00
€ 273.60
£ 246.24
¥ 31,412.32
Core i5244 MiB
4,096 KiB
4,194,304 B
0.00391 GiB
64 MiB
65,536 KiB
67,108,864 B
0.0625 GiB
28 W
28,000 mW
0.0375 hp
0.028 kW
3.3 GHz
3,300 MHz
3,300,000 kHz
3.7 GHz
3,700 MHz
3,700,000 kHz
32 GiB
32,768 MiB
33,554,432 KiB
34,359,738,368 B
0.0313 TiB
Iris Plus Graphics 650300 MHz
0.3 GHz
300,000 KHz
1,100 MHz
1.1 GHz
1,100,000 KHz
i5-7300U3 January 2017$ 281.00
€ 252.90
£ 227.61
¥ 29,035.73
Core i5243 MiB
3,072 KiB
3,145,728 B
0.00293 GiB
15 W
15,000 mW
0.0201 hp
0.015 kW
2.6 GHz
2,600 MHz
2,600,000 kHz
3.5 GHz
3,500 MHz
3,500,000 kHz
32 GiB
32,768 MiB
33,554,432 KiB
34,359,738,368 B
0.0313 TiB
HD Graphics 620300 MHz
0.3 GHz
300,000 KHz
1,100 MHz
1.1 GHz
1,100,000 KHz
i5-7360U3 January 2017$ 304.00
€ 273.60
£ 246.24
¥ 31,412.32
Core i5244 MiB
4,096 KiB
4,194,304 B
0.00391 GiB
64 MiB
65,536 KiB
67,108,864 B
0.0625 GiB
15 W
15,000 mW
0.0201 hp
0.015 kW
2.3 GHz
2,300 MHz
2,300,000 kHz
3.6 GHz
3,600 MHz
3,600,000 kHz
32 GiB
32,768 MiB
33,554,432 KiB
34,359,738,368 B
0.0313 TiB
Iris Plus Graphics 640300 MHz
0.3 GHz
300,000 KHz
1,000 MHz
1 GHz
1,000,000 KHz
i7-7500U30 August 2016$ 393.00
€ 353.70
£ 318.33
¥ 40,608.69
Core i7244 MiB
4,096 KiB
4,194,304 B
0.00391 GiB
15 W
15,000 mW
0.0201 hp
0.015 kW
2.7 GHz
2,700 MHz
2,700,000 kHz
3.5 GHz
3,500 MHz
3,500,000 kHz
32 GiB
32,768 MiB
33,554,432 KiB
34,359,738,368 B
0.0313 TiB
HD Graphics 620300 MHz
0.3 GHz
300,000 KHz
1,050 MHz
1.05 GHz
1,050,000 KHz
i7-7510UCore i7244 MiB
4,096 KiB
4,194,304 B
0.00391 GiB
15 W
15,000 mW
0.0201 hp
0.015 kW
2.7 GHz
2,700 MHz
2,700,000 kHz
3.7 GHz
3,700 MHz
3,700,000 kHz
32 GiB
32,768 MiB
33,554,432 KiB
34,359,738,368 B
0.0313 TiB
HD Graphics 620300 MHz
0.3 GHz
300,000 KHz
1,150 MHz
1.15 GHz
1,150,000 KHz
i7-7560U3 January 2017$ 415.00
€ 373.50
£ 336.15
¥ 42,881.95
Core i7244 MiB
4,096 KiB
4,194,304 B
0.00391 GiB
64 MiB
65,536 KiB
67,108,864 B
0.0625 GiB
15 W
15,000 mW
0.0201 hp
0.015 kW
2.4 GHz
2,400 MHz
2,400,000 kHz
3.8 GHz
3,800 MHz
3,800,000 kHz
32 GiB
32,768 MiB
33,554,432 KiB
34,359,738,368 B
0.0313 TiB
Iris Plus Graphics 640300 MHz
0.3 GHz
300,000 KHz
1,050 MHz
1.05 GHz
1,050,000 KHz
i7-7567U3 January 2017$ 415.00
€ 373.50
£ 336.15
¥ 42,881.95
Core i7244 MiB
4,096 KiB
4,194,304 B
0.00391 GiB
64 MiB
65,536 KiB
67,108,864 B
0.0625 GiB
28 W
28,000 mW
0.0375 hp
0.028 kW
3.5 GHz
3,500 MHz
3,500,000 kHz
4 GHz
4,000 MHz
4,000,000 kHz
16 GiB
16,384 MiB
16,777,216 KiB
17,179,869,184 B
0.0156 TiB
Iris Plus Graphics 650300 MHz
0.3 GHz
300,000 KHz
1,150 MHz
1.15 GHz
1,150,000 KHz
i7-7600U3 January 2017$ 393.00
€ 353.70
£ 318.33
¥ 40,608.69
Core i7244 MiB
4,096 KiB
4,194,304 B
0.00391 GiB
15 W
15,000 mW
0.0201 hp
0.015 kW
2.8 GHz
2,800 MHz
2,800,000 kHz
3.9 GHz
3,900 MHz
3,900,000 kHz
32 GiB
32,768 MiB
33,554,432 KiB
34,359,738,368 B
0.0313 TiB
HD Graphics 620300 MHz
0.3 GHz
300,000 KHz
1,150 MHz
1.15 GHz
1,150,000 KHz
i7-7660U3 January 2017$ 415.00
€ 373.50
£ 336.15
¥ 42,881.95
Core i7244 MiB
4,096 KiB
4,194,304 B
0.00391 GiB
64 MiB
65,536 KiB
67,108,864 B
0.0625 GiB
15 W
15,000 mW
0.0201 hp
0.015 kW
2.5 GHz
2,500 MHz
2,500,000 kHz
4 GHz
4,000 MHz
4,000,000 kHz
32 GiB
32,768 MiB
33,554,432 KiB
34,359,738,368 B
0.0313 TiB
Iris Plus Graphics 640300 MHz
0.3 GHz
300,000 KHz
1,100 MHz
1.1 GHz
1,100,000 KHz
4415U3 January 2017$ 161.00
€ 144.90
£ 130.41
¥ 16,636.13
Pentium Gold242 MiB
2,048 KiB
2,097,152 B
0.00195 GiB
15 W
15,000 mW
0.0201 hp
0.015 kW
2.2 GHz
2,200 MHz
2,200,000 kHz
32 GiB
32,768 MiB
33,554,432 KiB
34,359,738,368 B
0.0313 TiB
HD Graphics 610300 MHz
0.3 GHz
300,000 KHz
950 MHz
0.95 GHz
950,000 KHz
Count: 24

See also[edit]

arrow up 1.svgPower/Performance

Has subobject
"Has subobject" is a predefined property representing a container construct and is provided by Semantic MediaWiki.
Kaby Lake U - Cores - Intel#package +
designerIntel +
first announcedAugust 30, 2016 +
first launchedAugust 30, 2016 +
instance ofcore +
isax86-64 +
main imageFile:kaby lake u (front; iris).png + and File:kaby lake u (front; standard).png +
main image caption3-die config Iris Plus KBL-U (with OPC) + and 2-die config KBL-U +
manufacturerIntel +
microarchitectureKaby Lake +
nameKaby Lake U +
packageFCBGA-1356 +
process14 nm (0.014 μm, 1.4e-5 mm) +
technologyCMOS +
word size64 bit (8 octets, 16 nibbles) +