Intel Skylake microarchitecture

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Skylake (micro architecture)
Manufacturer Intel
Manufacturing process 14 nm
base Socket 1151
BGA 1356
BGA 1440
BGA 1515
Sales description Core i3, 6th generation
Core i5, 6th generation
Core i7, 6th generation
Xeon
Celeron
Pentium
Core-M
Number of cores 2/4
L1 cache 32 + 32 kB per core
L2 cache 256 kB per core
L3 cache 2/3/4/6/8 MB
predecessor Haswell (tock)
Broadwell (tick)
successor Kaby Lake (1st optimization)

Skylake is the code name of a processor microarchitecture from the chip manufacturer Intel , which was released in the third quarter of 2015 as the successor to the Intel Broadwell microarchitecture . Like the Broadwell processors, the Skylake processors are based on a 14 nm process. As the sixth generation of the Intel Core family, most processor numbers start with a "6".

design

Skylake works with the new socket 1151 presented in August 2015 . Like the previous generation, Intel exposes all Skylake chips in the 14 nm FinFET process. Initially, chipsets with the code name Sunrise Point ( Intel 100 series ) are used as the chipset, and from 2016 also with the code name Union Point. The new processors support DDR3 L and DDR4 RAM. Some variants also have an L4 cache. Depending on the model, the processors have two or four processor cores .

Improvements

The chips have been optimized in terms of power consumption in particular. Skylake supports Thunderbolt 3 and 5K displays with 60 Hz, as well as the simultaneous control of three 4K displays . The integrated graphics chips with a maximum frequency of 1.15 GHz achieve up to 1152  GFLOPS and enable significantly better graphics performance than the chips of the previous generation. They support DirectX 12 . The "HD Graphics" are given names made up of three-digit numbers from the 500 range (510/515/520/530/540/550). For the first time, Xeon processors are also available for mobile computing.

Compared to the previous architecture, Skylake brings expanded support for hardware-accelerated decoding and encoding of multimedia formats (“Intel Quick Sync Video” - or “Quick Sync” function for short). For example, Skylake accelerates the 8-bit decoding / encoding of H.265 / HEVC content, partial 10-bit decoding of H.265 / HEVC content, partial decoding / encoding of VP9 content and the encoding of JPEG images with a resolution of up to 16,000 × 16,000 pixels.

All Skylake processors support the instruction sets MMX , AES-NI , Intel 64 , SSE , SSE2 , SSE3 , SSSE3 , SSE4 , SSE4.1 , SSE4.2 and SGX , processors from i3 also AVX and AVX2, processors from i5 also TSX and TXT . The implementation of AVX-512 has been announced for the Xeon EP / EX models .

The mobile Core M processors have new model numbers based on the i3, i5 and i7 nomenclature: m3, m5 and m7.

Processor variants

In 2015, 51 new Skylake processors appeared:

  • Five 4.5 watt Y processors for tablets and Intel Compute Sticks
  • Ten 15-watt and four 28-watt U processors for tablets and thin notebooks
  • One 35-watt and six 45-watt H processors for high-performance notebooks
  • Two 45 watt Xeon processors for mobile workstations
  • Twelve 65-watt and nine 35-watt T desktop processors
  • Two 91-watt K processors for overclocking for desktop PCs

Chipset for Skylake generation

New chipsets are required compared to the Broadwell generation:

  • 100 series these chipsets are partly also suitable for Kaby Lake processors with an update .
  • 200 series X299 for Skylake-X, otherwise also suitable for Kaby Lake processors

See also

Web links

Individual evidence

  1. ↑ a b Intel introduces Skylake for Ultra- and Notebooks , Golem Online
  2. ↑ Processor comparison - Intel processors. CPUVergleiche.de, accessed on January 16, 2017 .
  3. ↑ 6 Years of Processor Graphics. IDF15, August 2015
  4. ↑ Ian Cutress: The Intel 6th Gen Skylake Review. Core i7-6700K and i5-6600K Tested. August 5, 2015, accessed January 18, 2016 .
  5. ↑ IFA 2015: Intel brings 49 more Skylake processors , Heise Online
  6. ↑ Intel equips its HDMI stick with Core M , Golem
  7. ↑ Intel Product Specifications - 100-Series Chipsets. Retrieved December 10, 2017 .
  8. ↑ Intel Product Specifications - 200-Series Chipsets. Retrieved December 10, 2017 .