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Skylake X - Cores - Intel
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Skylake X
skylake x (front).png
skylake x (back).png
General Info
DesignerIntel
ManufacturerIntel
IntroductionMay 30, 2017 (announced)
June 26, 2017 (launched)
Microarchitecture
ISAx86-64 (x86)
MicroarchitectureSkylake (server)
PlatformBasin Falls
Word Size
8 octets
16 nibbles
64 bit
Process14 nm
0.014 μm
1.4e-5 mm
TechnologyCMOS
Clock2,600 MHz - 3,500 MHz
Packaging
PackageFCLGA-2066 (LGA)
Dimension52.5 mm × 45 mm
Pitch1.016 mm
Contacts2066
SocketSocket R4
Succession
Contemporary
Kaby Lake X

Skylake X (SKL-X) is the processor core for Intel's high-end desktop (HEDT) microprocessor line based on the Skylake microarchitecture serving as a successor to Broadwell E. Skylake X processors feature a large array of enhancements and improvements including the new AVX-512 extension. Unlike the mainstream Skylake processors, enthusiasts Skylake X models are fabricated on Intel's enhanced 14+ nm process.

Overview[edit]

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

Common Features[edit]

All Skylake X processors have the following:

  • Quad-channel Memory
    • Up to DDR4-2400 / DDR4-2666
    • Up to 128 GiB
  • 28x or 44x PCIe
  • 6 cores to 18 cores with all models supporting Hyper-Threading)
  • Everything up to AVX-512 (SMM, FPU, NX, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AES, AVX, AVX2, and AVX-512)

Skylake X Processors[edit]

 List of Skylake X Processors
 Main processorCacheMemoryI/OFeature Diff
ModelPriceFamilyProcessLaunchedCoresThreadsFrequencyTurboTDPL2L3Memory TypeMax PCIeTurbo Max
i7-7800X$ 389.00
€ 350.10
£ 315.09
¥ 40,195.37
Core i714 nm
0.014 μm
1.4e-5 mm
26 June 20176123.5 GHz
3,500 MHz
3,500,000 kHz
4 GHz
4,000 MHz
4,000,000 kHz
140 W
140,000 mW
0.188 hp
0.14 kW
6 MiB
6,144 KiB
6,291,456 B
0.00586 GiB
8.25 MiB
8,448 KiB
8,650,752 B
0.00806 GiB
DDR4-2400
i7-7820X$ 599.00
€ 539.10
£ 485.19
¥ 61,894.67
Core i714 nm
0.014 μm
1.4e-5 mm
26 June 20178163.6 GHz
3,600 MHz
3,600,000 kHz
4.3 GHz
4,300 MHz
4,300,000 kHz
140 W
140,000 mW
0.188 hp
0.14 kW
8 MiB
8,192 KiB
8,388,608 B
0.00781 GiB
11 MiB
11,264 KiB
11,534,336 B
0.0107 GiB
DDR4-2666
i9-7900X$ 999.00
€ 899.10
£ 809.19
¥ 103,226.67
Core i914 nm
0.014 μm
1.4e-5 mm
26 June 201710203.3 GHz
3,300 MHz
3,300,000 kHz
4.3 GHz
4,300 MHz
4,300,000 kHz
140 W
140,000 mW
0.188 hp
0.14 kW
10 MiB
10,240 KiB
10,485,760 B
0.00977 GiB
13.75 MiB
14,080 KiB
14,417,920 B
0.0134 GiB
DDR4-2666
i9-7920X$ 1,199.00
€ 1,079.10
£ 971.19
¥ 123,892.67
Core i914 nm
0.014 μm
1.4e-5 mm
28 August 201712242.9 GHz
2,900 MHz
2,900,000 kHz
4.3 GHz
4,300 MHz
4,300,000 kHz
140 W
140,000 mW
0.188 hp
0.14 kW
12 MiB
12,288 KiB
12,582,912 B
0.0117 GiB
16.5 MiB
16,896 KiB
17,301,504 B
0.0161 GiB
DDR4-2666
i9-7940X$ 1,399.00
€ 1,259.10
£ 1,133.19
¥ 144,558.67
Core i914 nm
0.014 μm
1.4e-5 mm
25 September 201714283.1 GHz
3,100 MHz
3,100,000 kHz
4.3 GHz
4,300 MHz
4,300,000 kHz
165 W
165,000 mW
0.221 hp
0.165 kW
14 MiB
14,336 KiB
14,680,064 B
0.0137 GiB
19.25 MiB
19,712 KiB
20,185,088 B
0.0188 GiB
DDR4-2666
i9-7960X$ 1,699.00
€ 1,529.10
£ 1,376.19
¥ 175,557.67
Core i914 nm
0.014 μm
1.4e-5 mm
25 September 201716322.8 GHz
2,800 MHz
2,800,000 kHz
4.2 GHz
4,200 MHz
4,200,000 kHz
165 W
165,000 mW
0.221 hp
0.165 kW
16 MiB
16,384 KiB
16,777,216 B
0.0156 GiB
22 MiB
22,528 KiB
23,068,672 B
0.0215 GiB
DDR4-2666
i9-7980XE$ 1,999.00
€ 1,799.10
£ 1,619.19
¥ 206,556.67
Core i914 nm
0.014 μm
1.4e-5 mm
25 September 201718362.6 GHz
2,600 MHz
2,600,000 kHz
4.2 GHz
4,200 MHz
4,200,000 kHz
165 W
165,000 mW
0.221 hp
0.165 kW
18 MiB
18,432 KiB
18,874,368 B
0.0176 GiB
24.75 MiB
25,344 KiB
25,952,256 B
0.0242 GiB
DDR4-2666
Count: 7

See also[edit]

arrow up 1.svgPower/Performance

arrow up 1.svgPower/Performance

designerIntel +
first announcedMay 30, 2017 +
first launchedJune 26, 2017 +
instance ofcore +
isax86-64 +
isa familyx86 +
main imageFile:skylake x (front).png + and File:skylake x (back).png +
manufacturerIntel +
microarchitectureSkylake (server) +
nameSkylake X +
packageFCLGA-2066 +
platformBasin Falls +
process14 nm (0.014 μm, 1.4e-5 mm) +
socketSocket R4 +
technologyCMOS +
word size64 bit (8 octets, 16 nibbles) +