Intel Core i7-6650U vs Intel Core i7-6660U. Specifications, performance, tests

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

• CPU group
  Intel Core i 6000U Intel Core i 6000U
• Family
  Intel Core i7 Intel Core i7
• Generation
  6 6
• Segment
  Mobile Mobile

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

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

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 48
• Generation
  9 9
• GPU Frequency
  300 MHz 300 MHz
• GPU name
  Intel Iris Graphics 540 Intel Iris Graphics 540
• GPU Turbo
  1050 MHz 1050 MHz
• Max. displays
  3 3
• Max. GPU Memory
  32 GB 32 GB
• Release date
  Q3/2015 Q3/2015
• Shader
  384 384
• 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 No
• JPEG
  Decode / Encode Decode / Encode
• VC-1
  Decode Decode
• VP8
  Decode / Encode Decode / Encode
• VP9
  No No

Types, channel quantity of RAM supported by Intel Core i7-6660U and Intel Core i7-6650U. Depending on the motherboards, higher or lower memory frequencies may be supported.

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

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP Intel Core i7-6650U and Intel Core i7-6660U 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 100 °C
• TDP (PL1, legacy label)
  15 W 15 W
• TDP down
  9.5 W 9.5 W

Architecture, interfaces, additional instructions supported by Intel Core i7-6650U and Intel Core i7-6660U, virtual machine technologies and process technology.

• Architecture
  Skylake U Skylake U
• 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
  4.00 MB 4.00 MB
• Release date
  Q3/2015 Q1/2016
• Socket
  BGA 1356 BGA 1356
• Technology
  14 nm 14 nm
• Virtualization
  VT-x, VT-x EPT, VT-d VT-x, VT-x EPT, VT-d