Intel Core i7-3840QM vs Intel Core i3-3120M. Specifications, performance, tests

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

• CPU group
  Intel Core i 3000M Intel Core i 3000M
• Family
  Intel Core i7 Extreme Edition Intel Core i3
• Generation
  3 3
• 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
  2.8 GHz 2.5 GHz
• Core architecture
  normal normal
• CPU Cores
  4 2
• CPU Threads
  8 4
• Hyperthreading / SMT
  Yes Yes
• Overclocking
  Yes No
• Turbo Frequency (1 Core)
  3.8 GHz No turbo
• Turbo Frequency (4 Cores)
  No turbo -
• Turbo Frequency (2 Cores)
  - 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
  11.0 11.0
• Execution units
  16 16
• Generation
  7 7
• GPU Frequency
  650 MHz 650 MHz
• GPU name
  Intel HD Graphics 4000 Intel HD Graphics 4000
• GPU Turbo
  1300 MHz 1100 MHz
• Max. displays
  3 3
• Release date
  Q1/2011 Q1/2011
• Shader
  128 128
• 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 i3-3120M and Intel Core i7-3840QM. 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
  DDR3-1333DDR3-1600DDR3L-1333 SO-DIMMDDR3L-1600 SO-DIMM DDR3-1333DDR3-1600DDR3L-1333 SO-DIMMDDR3L-1600 SO-DIMM
• PCIe lanes
  16 16
• PCIe version
  3.0 2.0

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP Intel Core i7-3840QM and Intel Core i3-3120M 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
  105 °C 90 °C
• TDP (PL1, legacy label)
  45 W 35 W

Architecture, interfaces, additional instructions supported by Intel Core i7-3840QM and Intel Core i3-3120M, virtual machine technologies and process technology.

• Architecture
  Ivy Bridge H Ivy Bridge H
• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• ISA extensions
  SSE4.1, SSE4.2, AVX SSE4.1, SSE4.2, AVX
• L3-Cache
  8 MB 3 MB
• Release date
  Q3/2012 Q3/2012
• Socket
  PGA 988 PGA 988
• Technology
  22 nm 22 nm
• Virtualization
  VT-x, VT-x EPT, VT-d VT-x, VT-x EPT, VT-d