Intel Core i5-12600K vs Intel Core i7-3940XM

Let's find out which one of Intel Core i5-12600K and Intel Core i7-3940XM is of a more recent generation, and what segment it belongs to.

• Name
  Intel Core i5-12600K Intel Core i7-3940XM
• Segment
  Desktop / Server Mobile
• Family
  Intel Core i5 Intel Core i7 Extreme Edition
• Generation
  12 3
• CPU group
  Intel Core i 12000 Intel Core i 3000M
• Predecessor
  Intel Core i5-11600K --

In this block we are going to compare Intel Core i5-12600K vs Intel Core i7-3940XM by main technical specifications: number of cores and threads, base and maximum frequencies, process technology and cache size. The higher these specifications are, the more powerful your CPU will be.

• Frequency
  3.70 GHz 3.00 GHz
• CPU Cores
  10 4
• Turbo (1 Core)
  4.90 GHz 3.90 GHz
• CPU Threads
  16 8
• Hyperthreading
  Yes Yes
• Overclocking
  Yes Yes
• Core architecture
  hybrid (big.LITTLE) normal
• A core
  6x Golden Cove --
• B core
  4x Gracemont --

Common specifications for integrated graphics cards in Intel Core i5-12600K and Intel Core i7-3940XM along with supported interfaces and connection options. This block has no effect on the final efficiency of the CPU.

• GPU name
  Intel Iris Xe Graphics 32 (Alder Lake S) Intel HD Graphics 4000
• GPU frequency
  0.40 GHz 0.65 GHz
• GPU (Turbo)
  1.45 GHz 1.35 GHz
• Execution units
  32 16
• Shader
  256 128
• Max. GPU Memory
  16 GB --
• Max. displays
  4 3
• Generation
  12 7
• DirectX Version
  12 11.0
• Technology
  10 nm 22 nm
• Release date
  Q4/2021 Q1/2011

Let's compare the support of video codecs between Intel Core i5-12600K and Intel Core i7-3940XM. Hardware support of video decoding by embedded graphics cards directly affects the speed and quality of rendering videos.

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

To choose the best model between Intel Core i5-12600K and Intel Core i7-3940XM you need to pay special attention to memory type, clock frequency, multi-channel features, and PCIe version. The higher these numbers are, the better your CPU will be. Keep in mind that the maximum memory and frequency may also depend on the model of the motherboard.

• Memory type
  DDR4-3200DDR5-4800 DDR3-1333DDR3-1600DDR3L-1333 SO-DIMMDDR3L-1600 SO-DIMM
• Max. Memory
  256 GB 32 GB
• ECC
  No No
• Memory channels
  2 2
• PCIe version
  5.0 3.0
• PCIe lanes
  20 16

AES-NI encryption support for CPUs Intel Core i5-12600K and Intel Core i7-3940XM.

• AES-NI
  Yes Yes

Let's find out what TDP value would be better for Intel Core i5-12600K or Intel Core i7-3940XM? The Thermal Design Power (TDP) indicates the maximum amount of heat that should be dissipated by the chip cooling system. However, the value of TDP gives only a rough indication of the real power consumption of the CPU.

• TDP (PL1)
  125 W 55 W
• TDP (PL2)
  228 W / 56 s --
• Tjunction max.
  100 °C 105 °C

Here you can find a comparison of 2nd and 3rd level cache sizes for Intel Core i5-12600K and Intel Core i7-3940XM CPUs along with a list of ISA extensions.

• 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, AVX2+ SSE4.1, SSE4.2, AVX
• L3-Cache
  20.00 MB 8.00 MB
• Architecture
  Alder Lake S Ivy Bridge H
• Technology
  10 nm 22 nm
• Socket
  LGA 1700 PGA 988
• Release date
  Q4/2021 Q3/2012
• Part Number
  BX8071512600K --

List of devices based on Intel Core i5-12600K and Intel Core i7-3940XM.

• Used in
  Unknown Unknown