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

Overall score
star star star star star
Released
Q3/2012
Intel Core i7-3840QM
Intel Core i7-3840QM
Released
Q3/2012
Overall score
star star star star star
Intel Core i3-3120M
Intel Core i3-3120M

What's the best choice Intel Core i7-3840QM or Intel Core i3-3120M? Which processor is faster?

We have prepared a comparison to help you choose the best processor. Compare their specifications and benchmarks.

Intel Core i7-3840QM has a maximum frequency of 2.80 GHz. 4 Cores. Power consumption of 45 W. Released in Q3/2012.

Intel Core i3-3120M has a maximum frequency of 2.50 GHz. 2 Cores. Power consumption of 35 W. Released in Q3/2012.

Differences

  • Higher clock speed

    Around 11% better clock speed

    2.80 GHz left arrow 2.50 GHz
  • More number of cores

    2 times more cores

    4 left arrow 2

Positions in all rankings

Common positions Intel Core i7-3840QM CPU in popular benchmarks, for comparison with other models.

  • iGPU - FP32 Performance (Single-precision GFLOPS)
    1098 place
  • Performance per watt

    About 0.78 times less performance per watt

    35 W left arrow 45 W

Positions in all rankings

Common positions Intel Core i3-3120M CPU in popular benchmarks, for comparison with other models.

  • iGPU - FP32 Performance (Single-precision GFLOPS)
    1188 place

Specifications

Technical data
Intel Core i7-3840QM Intel Core i7-3840QM
Intel Core i3-3120M Intel Core i3-3120M
CPU family and group

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

  • Segment
    Mobile left arrow Mobile
  • Family
    Intel Core i7 Extreme Edition left arrow Intel Core i3
  • Generation
    3 left arrow 3
  • CPU group
    Intel Core i 3000M left arrow Intel Core i 3000M
CPU Technical specs

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
    2.80 GHz left arrow 2.50 GHz
  • CPU Cores
    4 left arrow 2
  • Turbo (1 Core)
    3.80 GHz left arrow No turbo
  • CPU Threads
    8 left arrow 4
  • Hyperthreading
    Yes left arrow Yes
  • Overclocking
    Yes left arrow No
  • Core architecture
    normal left arrow normal
IGPU

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 4000 left arrow Intel HD Graphics 4000
  • GPU frequency
    0.65 GHz left arrow 0.65 GHz
  • GPU (Turbo)
    1.30 GHz left arrow 1.10 GHz
  • Execution units
    16 left arrow 16
  • Shader
    128 left arrow 128
  • Max. displays
    3 left arrow 3
  • Generation
    7 left arrow 7
  • DirectX Version
    11.0 left arrow 11.0
  • Technology
    22 nm left arrow 22 nm
  • Release date
    Q1/2011 left arrow Q1/2011
Hardware codec support

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

  • h265 / HEVC (8 bit)
    No left arrow No
  • h265 / HEVC (10 bit)
    No left arrow No
  • h264
    Decode / Encode left arrow Decode / Encode
  • VP9
    No left arrow No
  • VP8
    No left arrow No
  • AV1
    No left arrow No
  • AVC
    Decode / Encode left arrow Decode / Encode
  • VC-1
    Decode left arrow Decode
  • JPEG
    Decode left arrow Decode
Memory specs & PCI

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.

  • Memory type
    DDR3-1333DDR3-1600DDR3L-1333 SO-DIMMDDR3L-1600 SO-DIMM left arrow DDR3-1333DDR3-1600DDR3L-1333 SO-DIMMDDR3L-1600 SO-DIMM
  • Max. Memory
    32 GB left arrow 32 GB
  • ECC
    No left arrow No
  • Memory channels
    2 left arrow 2
  • PCIe version
    3.0 left arrow 2
  • PCIe lanes
    16 left arrow 16
Encryption
  • AES-NI
    Yes left arrow Yes
Thermal Management

Compare the TDP requirements of TDP Intel Core i7-3840QM and Intel Core i3-3120M to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

  • TDP (PL1)
    45 W left arrow 35 W
  • Tjunction max.
    105 °C left arrow 90 °C
Technologies and extensions

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

  • Instruction set (ISA)
    x86-64 (64 bit) left arrow x86-64 (64 bit)
  • Virtualization
    VT-x, VT-x EPT, VT-d left arrow VT-x, VT-x EPT, VT-d
  • ISA extensions
    SSE4.1, SSE4.2, AVX left arrow SSE4.1, SSE4.2, AVX
  • L3-Cache
    8.00 MB left arrow 3.00 MB
  • Architecture
    Ivy Bridge H left arrow Ivy Bridge H
  • Technology
    22 nm left arrow 22 nm
  • Socket
    PGA 988 left arrow PGA 988
  • Release date
    Q3/2012 left arrow Q3/2012

Benchmarks

Performance tests CPUs

Based on the results of several benchmarks, you can more accurately estimate the difference in performance between Intel Core i7-3840QM and Intel Core i3-3120M.

Compare the synthetic test values and choose the best processor!

iGPU - FP32 Performance (Single-precision GFLOPS)
The performance of the iGPU - the internal GPU in games
333
Intel Core i7-3840QM
282
Intel Core i3-3120M

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