Intel Core i5-9400 vs Intel Core i9-9900X

Comparison of processors Intel Core i5-9400 vs. Intel Core i9-9900X 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 i5-9400 Intel Core i9-9900X
• Segment
  Desktop / Server Desktop / Server
• Family
  Intel Core i5 Intel Core i9
• Generation
  9 9
• CPU group
  Intel Core i 9000 Intel Core i 9000X
• Predecessor
  Intel Core i5-8400 --
• Successor
  Intel Core i5-10400 --

Comparing processors Intel Core i5-9400 vs. Intel Core i9-9900X 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
  2.90 GHz 3.50 GHz
• CPU Cores
  6 10
• Turbo (1 Core)
  4.10 GHz 4.50 GHz
• CPU Threads
  6 20
• Hyperthreading
  No Yes
• Overclocking
  No Yes
• Core architecture
  normal normal

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 i5-9400 versus Intel Core i9-9900X lacks an integrated graphics card in one of the models being compared, just go ahead and explore the following information.

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

Consider hardware codec support for CPU Intel Core i5-9400 and CPU Intel Core i9-9900X 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)
  Decode / Encode No
• h265 / HEVC (10 bit)
  Decode / Encode No
• h264
  Decode / Encode No
• VP9
  Decode / Encode No
• VP8
  Decode / Encode No
• AV1
  No No
• AVC
  Decode / Encode No
• VC-1
  Decode No
• JPEG
  Decode / Encode No

The performance comparison between processors Intel Core i5-9400 and Intel Core i9-9900X in terms of supported memory specification and PCIe affects the overall performance of the models in games, rendering and other working applications. Please pay attention to these specifications, the CPU that supports the more modern DDR memory standard (version 5 current), has the latest PCIE version (version 5 the latest), and is compatible with higher clock speed RAM will win.

• Memory type
  DDR4-2666 DDR4-2666
• Max. Memory
  128 GB 128 GB
• ECC
  No No
• Memory channels
  2 4
• PCIe version
  3.0 3.0
• PCIe lanes
  16 44

Intel Advanced Encryption Standard New Instructions (Intel AES-NI) is a standard introduced by Intel for processors. It is used to protect data at a higher level of security through encryption. This option may not be available for some AMD models. Not included in performance ratings or benchmark speed ratings.

• AES-NI
  Yes Yes

This is important information that will tell you how much power you need for the new CPU you choose based on a comparison between Intel Core i5-9400 and Intel Core i9-9900X. The higher the TDP, the hotter the chip gets, hence the need for an improved cooling system (usually more expensive). Hot processors are more difficult to cool and require motherboards with quality capacitors.

• TDP (PL1)
  65 W 165 W
• Tjunction max.
  100 °C 92 °C

Comparison of the technical specifications of the processor Intel Core i5-9400 and Intel Core i9-9900X. Here you need to look at the difference in release date (more modern model will be released later), as well as on the size of the second and third level cache (L3 and L3). Also, choose a processor made according to a more modern technological process (indicated in nanometers, the smaller the value, the better).

• 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 SSE4.1, SSE4.2, AVX2, AVX-512
• L3-Cache
  9.00 MB 19.00 MB
• Architecture
  Coffee Lake S Refresh Skylake X Refresh
• Technology
  14 nm 14 nm
• Socket
  LGA 1151-2 LGA 2066
• Release date
  Q2/2019 Q4/2018

At the end of the processor model comparison Intel Core i5-9400 and Intel Core i9-9900X 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
  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 Unknown