Intel Core i7-4550U vs Intel Core i7-4558U. Specifications, performance, tests

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

• Segment
  Mobile Mobile
• Family
  Intel Core i7 Intel Core i7
• Generation
  4 4
• CPU group
  Intel Core i 4000U Intel Core i 4000U

Basic parameters such as number of cores, number of threads, base and turbo frequency, and cache size. These parameters indirectly tell about the speed of the processor, the higher they are the better.

• Frequency
  1.50 GHz 2.80 GHz
• CPU Cores
  2 2
• Turbo (1 Core)
  3.00 GHz 3.30 GHz
• CPU Threads
  4 4
• Turbo (2 Cores)
  2.60 GHz 3.10 GHz
• Hyperthreading
  Yes Yes
• Overclocking
  No No
• Core architecture
  normal normal

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

• GPU name
  Intel HD Graphics 5000 Intel Iris Graphics 5100
• GPU frequency
  0.20 GHz 0.20 GHz
• GPU (Turbo)
  1.10 GHz 1.20 GHz
• Execution units
  40 40
• Shader
  320 320
• Max. GPU Memory
  2 GB 2 GB
• Max. displays
  3 3
• Generation
  7.5 7.5
• DirectX Version
  11.1 11.1
• Technology
  22 nm 22 nm
• Release date
  Q2/2013 Q2/2013

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

• h265 / HEVC (8 bit)
  No No
• h265 / HEVC (10 bit)
  No No
• h264
  Decode / Encode Decode / Encode
• VP9
  No No
• VP8
  No No
• AV1
  No No
• AVC
  Decode / Encode Decode / Encode
• VC-1
  Decode Decode
• JPEG
  Decode Decode

Types, channel quantity of RAM supported by Intel Core i7-4558U and Intel Core i7-4550U. Depending on the motherboards, higher or lower memory frequencies may be supported.

• Memory type
  DDR3L-1600 SO-DIMM DDR3L-1333 SO-DIMMDDR3L-1600 SO-DIMM
• Max. Memory
  16 GB 16 GB
• ECC
  No No
• Memory channels
  2 2
• PCIe version
  2.0 2.0
• PCIe lanes
  12 12

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP Intel Core i7-4550U and Intel Core i7-4558U to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

• TDP (PL1)
  15 W 28 W
• Tjunction max.
  -- 100 °C

Architecture, interfaces, additional instructions supported by Intel Core i7-4550U and Intel Core i7-4550U, virtual machine technologies and process technology.

• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• Virtualization
  VT-x, VT-x EPT, VT-d VT-x, VT-x EPT, VT-d
• ISA extensions
  SSE4.1, SSE4.2, AVX2 SSE4.1, SSE4.2, AVX2
• L3-Cache
  4.00 MB 4.00 MB
• Architecture
  Haswell U Haswell U
• Technology
  22 nm 22 nm
• Socket
  BGA 1168 BGA 1168
• Release date
  Q3/2013 Q3/2013