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

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

• CPU group
  Intel Core i 4000U Intel Core i 4000U
• Family
  Intel Core i7 Intel Core i7
• Generation
  4 4
• 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
  1.5 GHz 2.8 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 GHz 3.3 GHz
• Turbo Frequency (2 Cores)
  2.6 GHz 3.1 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
  11.1 11.1
• Execution units
  40 40
• Generation
  7.5 7.5
• GPU Frequency
  200 MHz 200 MHz
• GPU name
  Intel HD Graphics 5000 Intel Iris Graphics 5100
• GPU Turbo
  1100 MHz 1200 MHz
• Max. displays
  3 3
• Max. GPU Memory
  2 GB 2 GB
• Release date
  Q2/2013 Q2/2013
• Shader
  320 320
• Technology
  22 nm 22 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)
  No No
• h265 / HEVC (10 bit)
  No No
• JPEG
  Decode Decode
• VC-1
  Decode Decode
• VP8
  No No
• VP9
  No No

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.

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

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP Intel Core i7-4550U and Intel Core i7-4558U 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 28 W

Architecture, interfaces, additional instructions supported by Intel Core i7-4550U and Intel Core i7-4558U, virtual machine technologies and process technology.

• Architecture
  Haswell U Haswell 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 MB 4 MB
• Release date
  Q3/2013 Q3/2013
• Socket
  BGA 1168 BGA 1168
• Technology
  22 nm 22 nm
• Virtualization
  VT-x, VT-x EPT, VT-d VT-x, VT-x EPT, VT-d