Intel Core i7-6660U vs Intel Core i7-6700. Specifications, performance, tests

Background information about the processors being compared, series, generation and market segment.

• CPU group
  Intel Core i 6000U Intel Core i 6000
• Family
  Intel Core i7 Intel Core i7
• Generation
  6 6
• Segment
  Mobile Desktop / Server
• Successor
  - Intel Core i7-7700

Core counts, threads, cache and clock modes describe the CPU configuration. Performance depends on the workload and comparable measured results.

• Base Frequency
  2.4 GHz 3.4 GHz
• Core architecture
  normal normal
• CPU Cores
  2 4
• CPU Threads
  4 8
• Hyperthreading / SMT
  Yes Yes
• Overclocking
  No No
• Turbo Frequency (1 Core)
  3.4 GHz 4 GHz
• Turbo Frequency (2 Cores)
  No turbo -
• Turbo Frequency (4 Cores)
  - 3.7 GHz

Internal Graphics does not affect the performance of the CPU, performs the work of the graphics card in its absence or on mobile devices.

• DirectX Version
  12 12
• Execution units
  48 24
• Generation
  9 9
• GPU Frequency
  300 MHz 350 MHz
• GPU name
  Intel Iris Graphics 540 Intel HD Graphics 530
• GPU Turbo
  1050 MHz 1150 MHz
• Max. displays
  3 3
• Max. GPU Memory
  32 GB 64 GB
• Release date
  Q3/2015 Q3/2015
• Shader
  384 192
• Technology
  14 nm 14 nm

Built-in codecs used to encode and decode content. Significantly speeds up the required operations.

• AV1
  No No
• H.264 / AVC
  Decode / Encode Decode / Encode
• h265 / HEVC (8 bit)
  Decode / Encode Decode / Encode
• h265 / HEVC (10 bit)
  No Decode
• JPEG
  Decode / Encode Decode / Encode
• VC-1
  Decode Decode
• VP8
  Decode / Encode Decode / Encode
• VP9
  No Decode

Types, channel quantity of RAM supported by Intel Core i7-6700 and Intel Core i7-6660U. Depending on the motherboards, higher or lower memory frequencies may be supported.

• ECC
  No No
• Max. Memory
  32 GB 64 GB
• Memory channels
  2 2
• Memory type
  DDR3L-1600 SO-DIMMDDR4-2133 SO-DIMMLPDDR3-1866 -
• PCIe lanes
  12 16
• PCIe version
  3.0 3.0

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP Intel Core i7-6660U and Intel Core i7-6700 Power specifications describe different manufacturer limits. TDP, base power and maximum turbo power are separate values; they do not establish measured system consumption.

• Maximum Operating Temperature
  100 °C -
• TDP (PL1, legacy label)
  15 W 65 W
• TDP down
  9.5 W -

Architecture, interfaces, additional instructions supported by Intel Core i7-6660U and Intel Core i7-6700, virtual machine technologies and process technology.

• Architecture
  Skylake U Skylake S
• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• ISA extensions
  SSE4.1, SSE4.2, AVX2 SSE4.1, SSE4.2, AVX2
• L3-Cache
  4 MB 8 MB
• Release date
  Q1/2016 Q3/2015
• Socket
  BGA 1356 LGA 1151
• Technology
  14 nm 14 nm
• Virtualization
  VT-x, VT-x EPT, VT-d VT-x, VT-x EPT, VT-d