Intel Core i5-7640X
Intel Core i5-9400
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Intel Core i5-7640X vs Intel Core i5-9400

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It's time to compare processors Intel Core i5-7640X vs. Intel Core i5-7640X and find out which model is better, more modern and more productive, for example in games or rendering. We use not only official processor specifications but also benchmark results to achieve maximum accuracy in performance evaluation.

Comparing Intel Core i5-7640X vs. Intel Core i5-7640X

First of all, the comparison of Intel Core i5-7640X vs Intel Core i5-7640X should start with a basic perception of the performance difference. All of the values listed in the table are important and affect the final position in the ranking of the best processors. Determining the difference is very easy with our comparison:

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Specs CPU Intel Core i5-7640X CPU Intel Core i5-7640X
Model dateIntel Core i5-7640X Intel Core i5-7640X
Frequency per core 4.00 GHz 4.00 GHz
RAM type and frequencyDDR4-2666 DDR4-2666
Motherboard socket LGA 2066 LGA 2066
Number of cores 4 4
Kernel Threads 8 8
Basic clock speed4.00 GHz 4.00 GHz
Lithography14 nm 14 nm
L2 cache memory-- --
L3 cache memory6.00 MB 6.00 MB
Architecture Skylake X Skylake X
TDP112 W 112 W
heat output 112 W 112 W
Where to useDesktop / Server Desktop / Server

What is the main difference between Intel Core i5-7640X and Intel Core i5-7640X?

The main difference between Intel Core i5-7640X / Intel Core i5-7640X processors is the clock speed, L2 and L3 memory size, production date, and base clock speed which directly affects performance or gaming performance.

Whether Intel Core i5-7640X or Intel Core i5-7640X?

To determine the best match between Intel Core i5-7640X and Intel Core i5-7640X, it is worth looking at scores in performance benchmarks, otherwise known as benchmarks. The higher the score, the faster and more modern the processor is, it is the one you can buy to upgrade your system.

Reasons to consider
Intel Core i5-7640X
Report a bug
  • Higher clock speed
    4.00 GHz left arrow 2.90 GHz
    Around -38% better clock speed
  • Higher turbo clock speed
    4.20 GHz left arrow 4.10 GHz
    Around 2% better overclocked clock speed
Reasons to consider
Intel Core i5-9400
Report a bug
  • More number of cores
    6 left arrow 4
    2 times more cores
  • Performance per watt
    65 W left arrow 112 W
    About 0.58 times less performance per watt
Complete list of technical specifications
Intel Core i5-7640X Intel Core i5-7640X
Intel Core i5-9400 Intel Core i5-9400
CPU generation and family

Comparison of processors Intel Core i5-7640X vs. Intel Core i5-9400 will begin with the difference in model generations and their basic specifications: the purpose of the model (for server or workstation, computer or laptop), the code name of the CPU model and its generation, the previous model and the family related to a specific processor group.

  • Name
    Intel Core i5-7640X left arrow Intel Core i5-9400
  • Segment
    Desktop / Server left arrow Desktop / Server
  • Family
    Intel Core i5 left arrow Intel Core i5
  • Generation
    7 left arrow 9
  • CPU group
    Intel Core i 7000X left arrow Intel Core i 9000
  • Predecessor
    -- left arrow Intel Core i5-8400
  • Successor
    -- left arrow Intel Core i5-10400
CPU Cores and Base Frequency

Comparing processors Intel Core i5-7640X vs. Intel Core i5-9400 in this info section reveals us the performance difference in terms of base clock frequency, number of cores and number of threads. Note the possibility of overclocking models and support for hyperthreading, which is important for processing large data sets.

  • Frequency
    4.00 GHz left arrow 2.90 GHz
  • CPU Cores
    4 left arrow 6
  • Turbo (1 Core)
    4.20 GHz left arrow 4.10 GHz
  • CPU Threads
    8 left arrow 6
  • Hyperthreading
    Yes left arrow No
  • Overclocking
    Yes left arrow No
  • Core architecture
    normal left arrow normal
Internal Graphics

Integrated graphics in the CPU is an addition that is not always found in models. So just pay attention to the presence of iGPU, it is a feature that does not affect the overall performance evaluation. If the CPU comparison Intel Core i5-7640X versus Intel Core i5-9400 lacks an integrated graphics card in one of the models being compared, just go ahead and explore the following information.

  • GPU name
    no iGPU left arrow Intel UHD Graphics 630
  • GPU frequency
    left arrow 0.35 GHz
  • GPU (Turbo)
    No turbo left arrow 1.05 GHz
  • Execution units
    left arrow 24
  • Shader
    left arrow 192
  • Max. GPU Memory
    -- left arrow 64 GB
  • Max. displays
    left arrow 3
  • Generation
    left arrow 9.5
  • DirectX Version
    left arrow 12
  • Technology
    left arrow 14 nm
  • Release date
    left arrow Q4/2017
Hardware codec support

Consider hardware codec support for CPU Intel Core i5-7640X and CPU Intel Core i5-9400 in a performance comparison. Hardware acceleration helps to convert processed data into sound or video files; in fact, the presence or absence of this support does not affect the power of the model.

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

Comparing the performance of processors Intel Core i5-7640X and Intel Core i5-9400 in terms of supported memory specifications and PCIe can significantly impact the models' overall performance in gaming, rendering, and other professional applications. Make sure to examine these specifications closely; the CPU that supports a more advanced DDR memory standard (currently version 5), the latest PCIe version (version 5 being the newest), and compatibility with higher clock speed RAM will come out on top.

  • Memory type
    DDR4-2666 left arrow DDR4-2666
  • Max. Memory
    left arrow 128 GB
  • ECC
    No left arrow No
  • Memory channels
    2 left arrow 2
  • PCIe version
    3.0 left arrow 3.0
  • PCIe lanes
    16 left arrow 16

Intel's Advanced Encryption Standard New Instructions (Intel AES-NI) is a standard implemented by Intel for its processors, aimed at providing a higher level of data protection through encryption. This feature might not be available in some AMD models. It is not included in performance ratings or benchmark speed evaluations.

  • AES-NI
    Yes left arrow Yes
Thermal Management

When comparing processors Intel Core i5-7640X and Intel Core i5-9400, it is important to pay attention to the processor's cooling system. A good cooling system ensures stable processor operation, prevents overheating, and increases its performance. The best processors are typically equipped with more efficient cooling systems, which is one of the factors that influence their high performance.

  • TDP (PL1)
    112 W left arrow 65 W
  • Tjunction max.
    -- left arrow 100 °C
Technical details

When comparing the technical specifications of processors Intel Core i5-7640X and Intel Core i5-9400, it's important to consider several key factors that can impact their performance and efficiency. Firstly, take note of the release date, as newer models are generally more advanced and have improved performance. Secondly, consider the size of the L2 and L3 cache, as this directly affects the processor's speed of data processing and retrieval. Additionally, it's important to check the manufacturing process technology, as the smaller the nanometer value, the more advanced the technology and the better the performance. All these factors should be taken into account when making a decision on which processor to choose.

  • 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, AVX2, AVX-512 left arrow SSE4.1, SSE4.2, AVX2
  • L3-Cache
    6.00 MB left arrow 9.00 MB
  • Architecture
    Skylake X left arrow Coffee Lake S Refresh
  • Technology
    14 nm left arrow 14 nm
  • Socket
    LGA 2066 left arrow LGA 1151-2
  • Release date
    Q2/2017 left arrow Q2/2019
Devices using this processor

At the end of the processor model comparison Intel Core i5-7640X and Intel Core i5-9400 you can see in which workstations, gaming computers or laptops the models were installed. If you find an inaccuracy, please email us and we will complete this page.

  • Used in
    Unknown left arrow HP Slim S01-pF0013ngAnkermann AC Agentur1 PC PC Intel Core i5-9400Kiebel Aufrüst Gamer PC (v9) Intel Core i5 9400MEDION ERAZER P66065 Gaming Desktop mit Intel Core i5-9400
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