Intel Core i3-2125
Intel Core i7-2700K
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Intel Core i3-2125 vs Intel Core i7-2700K. Specifications, performance, tests

Overall score
star star star star star
Released
Q3/2011
Intel Core i3-2125
Intel Core i3-2125
Released
Q4/2011
Overall score
star star star star star
Intel Core i7-2700K
Intel Core i7-2700K

What's the best choice Intel Core i3-2125 or Intel Core i7-2700K? Which processor is faster?

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

Intel Core i3-2125 has a maximum frequency of 3.30 GHz. 2 Cores. Power consumption of 35 W. Released in Q3/2011.

Intel Core i7-2700K has a maximum frequency of 3.50 GHz. 4 Cores. Power consumption of 95 W. Released in Q4/2011.

Differences

  • Performance per watt

    times less performance per watt

    35 W left arrow 95 W

Positions in all rankings

Common positions Intel Core i3-2125 CPU in popular benchmarks, for comparison with other models.

  • Geekbench 5, 64bit (Single-Core)
    968 place
  • iGPU - FP32 Performance (Single-precision GFLOPS)
    1304 place
  • Higher clock speed

    Around 6% better clock speed

    3.50 GHz left arrow 3.30 GHz
  • More number of cores

    About 2 times more cores

    4 left arrow 2

Positions in all rankings

Common positions Intel Core i7-2700K CPU in popular benchmarks, for comparison with other models.

  • Geekbench 5, 64bit (Single-Core)
    794 place
  • iGPU - FP32 Performance (Single-precision GFLOPS)
    1221 place

Specifications

Technical data
Intel Core i3-2125 Intel Core i3-2125
Intel Core i7-2700K Intel Core i7-2700K
CPU family and group

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

  • Segment
    Desktop / Server left arrow Desktop / Server
  • Family
    Intel Core i3 left arrow Intel Core i7
  • Generation
    2 left arrow 2
  • CPU group
    Intel Core i 2000 left arrow Intel Core i 2000
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
    3.30 GHz left arrow 3.50 GHz
  • CPU Cores
    2 left arrow 4
  • Turbo (1 Core)
    No turbo left arrow 3.90 GHz
  • CPU Threads
    4 left arrow 8
  • Hyperthreading
    Yes left arrow Yes
  • Overclocking
    No left arrow Yes
  • 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 3000 left arrow Intel HD Graphics 3000
  • GPU frequency
    0.85 GHz left arrow 0.85 GHz
  • GPU (Turbo)
    1.10 GHz left arrow 1.35 GHz
  • Execution units
    12 left arrow 12
  • Shader
    96 left arrow 96
  • Max. displays
    2 left arrow 2
  • Generation
    6 left arrow 6
  • DirectX Version
    10.1 left arrow 10.1
  • Technology
    32 nm left arrow 32 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
    No left arrow No
Memory specs & PCI

Types, channel quantity of RAM supported by Intel Core i7-2700K and Intel Core i3-2125. Depending on the motherboards, higher or lower memory frequencies may be supported.

  • Memory type
    DDR3-1066DDR3-1333 left arrow DDR3-1066DDR3-1333
  • Max. Memory
    32 GB left arrow 32 GB
  • ECC
    No left arrow No
  • Memory channels
    2 left arrow 2
  • PCIe version
    2.0 left arrow 2.0
  • PCIe lanes
    16 left arrow 16
Encryption
  • AES-NI
    Yes left arrow Yes
Thermal Management

Compare the TDP requirements of TDP Intel Core i3-2125 and Intel Core i7-2700K to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

  • TDP (PL1)
    35 W left arrow 95 W
  • Tjunction max.
    -- left arrow 100 °C
Technologies and extensions

Architecture, interfaces, additional instructions supported by Intel Core i3-2125 and Intel Core i3-2125, 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 left arrow VT-x, VT-x EPT
  • ISA extensions
    SSE4.1, SSE4.2, AVX left arrow SSE4.1, SSE4.2, AVX
  • L3-Cache
    3.00 MB left arrow 8.00 MB
  • Architecture
    Sandy Bridge S left arrow Sandy Bridge S
  • Technology
    32 nm left arrow 32 nm
  • Socket
    LGA 1155 left arrow LGA 1155
  • Release date
    Q3/2011 left arrow Q4/2011

Benchmarks

Performance tests CPUs

Based on the results of several benchmarks, you can more accurately estimate the difference in performance between Intel Core i3-2125 and Intel Core i7-2700K.

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
211
Intel Core i3-2125
259
Intel Core i7-2700K

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