Intel i9-13900K vs i9-13900KF Core CPU Processor

The 13th-generation Intel core processors from the i9 family are some of the fastest. Intel i9-13900K continues to be in demand for its speed and performance.

We look at the comparison between the Intel i9-13900K and Intel i9-13900KF core processors below.

Main differences

The main differences between the Intel i9-13900K and i9-13900KF are shared below for your ready reference:

  • Intel i9-13900K processor comes with an in-built display adapter or graphics support. The i9-13900KF processors do not have an in-built display capability. You must get a graphics adapter or graphics engine with an i9-13900KF processor. Intel i9-13900KF is suitable for advanced gamers. They prefer to bring up full-fledged graphics engines or display processors like Nvidia.
  • The i9-13900K processor supports ECC RAM while the i9-13900KF does not have ECC RAM support.
  • The i9-13900K processor supports advanced security programs of Intel Some of these include the Intel Threat Detection Technology and Intel Active Management Technology. A full list of security products available in the i9-13900K processor is shared in the relevant section below.
  • Intel i9-13900K processor is costlier than the I9-13900KF processor by almost 8 to 10 percent. The cost difference is calculated based on the list price of both processors.

We look at the capabilities and differences between Intel i9-13900K and i9-13900KF below for your ready reference.

CPU Basics

The basic CPU details for Intel i9-13900K and Intel i9-13900KF are shared below.

Processor detailsi9-13900Ki9-13900KF
Generation13th generation13th generation
ArchitectureRaptop LakeRaptop Lake
Preceding processori9-12900Ki9-12900F
UsagePC/Client/Tablet, WorkstationPC/Client/Tablet
LithographyIntel 7Intel 7
Release dateQ4-2022Q4-2022

There are no differences in the CPU basic of Intel i9-13900K and i9-13900KF processors.

CPU Cores

The details of the number of cores in Intel i9-13900K and i9-13900KF are mentioned below.

CPU Coresi9-13900Ki9-13900KF
Total cores2424
Performance cores88
Efficient cores1616
CPU SocketFCLGA1700FCLGA1700
T Junction100°C100°C

There are no differences in the CPU specifications or the number of cores of Intel i9-13900K and i9-13900KF processors.

CPU Speed

Let us look at the speed of Intel i9-13900K and i9-13900KF processors in a side-by-side comparison below.

CPU Speedi9-13900Ki9-13900KF
Performance core – Base Frequency3.00 GHz3.00 GHz
Performance core – Turbo Frequency5.40 GHz5.40 GHz
Efficient core – Base Frequency2.20 GHz2.20 GHz
Efficient core – Turbo Frequency4.30 GHz4.30 GHz
Intel Turbo Boost Max Frequency5.70 GHz5.70 GHz
Intel Thermal Velocity Boost Frequency5.80 GHz5.80 GHz
Max Turbo Frequency5.80 GHz5.80 GHz

The frequency of Intel i9-13900K and i9-13900KF processors for the performance and efficient cores is uniform. There are no differences in the frequency of both processors on different processor modes.

CPU Cache

The processor cache details for Intel i9-13900K and i9-13900KF are mentioned below.

Total L3 cache (shared)36 MB36 MB
Total L2 cache32 MB32 MB
L2 cache per core2 MB2 MB

We have an identical cache on Intel i9-13900K and i9-13900KF processors. There are no differences.


Both, Intel i9-13900K and i9-13900KF offer support for DDR 5 and DDR 4 RAM. The essential details of RAM configuration, capacity, and compatibility for both processors are shared below.

Memory detailsi9-13900Ki9-13900KF
Total memory supported128 GB128 GB
Memory channels22
DDR 5 Memory supportYesYes
DDR 5 Memory Maximum Speed5600 MT/s (mega transfers per second)5600 MT/s (mega transfers per second)
DDR 4 Memory Maximum Speed3200 MT/s (mega transfers per second)3200 MT/s (mega transfers per second)
Maximum Memory Bandwidth89.6 GB/s89.6 GB/s
ECC Memory compatibleYesNo

There are no differences in the RAM capacity and compatibility of Intel i9-13900K and i9-13900KF processors.

CPU Graphics

Intel i9-13900K and i9-13900KF, primarily, differ in the graphics configuration. The i9-13900K processor has an in-built graphics engine with the graphics processor. The details of the graphic engine of Intel i9-13900K processors are shared below.

Processor graphicsi9-13900Ki9-13900KF
Graphics engineUHD Graphics 770Not integrated
Graphics Base frequency300 MHzNot integrated
Graphics Max Dynamic frequency1.65 GHzNot integrated
Graphics outputeDP 1.4b, DP 1.4a, HDMI 2.1
Max Resolution eDP5120 x 3200 @ 120Hz
Max Resolution7680 x 4320 @ 60Hz
Max Resolution (HDMI)4096 x 2160 @ 60Hz
Number of displays supported4
DirectX Support12
Open GL Support4.5
Open CL Support3.5

Intel i9-13900K processors use Intel’s proprietary graphic engine powered by the UHD770 engine. Intel i9-13900KF lacks an on-board graphics engine or display adapter.

Expansion options

Intel i9-13900K and i9-13900KF have identical slots and are compatible with PCIe 5 and PCIe 4 standards for the bus architecture.

Slot expansionsi9-13900Ki9-13900KF
Direct Media Interface (DMI) Revision version44
Max DMI lanes88
PCIe 5 compatibleYesYes
PCIe 4 compatibleYesYes
PCI Express configurationUp to 1×16+4, 2×8+4Up to 1×16+4, 2×8+4
Max PCI lanes2020

There are no differences between i9-13900K and i9-13900KF processors when it comes to compatibility with PCIe 5 and PCIe 4 standards.

Power consumption

Power usagei9-13900Ki9-13900KF
Base power125 Watts125 Watts
Maximum Turbo power253 Watts253 Watts

Intel i9-13900K and i9-13900KF use an identical amount of base power and maximum turbo power. There are no differences in power consumption of both processors.


Intel i9-13900K strives to offer a more secured experience than the i9-13900KF processors. The following Intel-specific security algorithms are supported by the Intel i9-13900K processors.

Security programsIntel i9-13900KIntel i9-13900KF
Intel® Threat Detection Technology (TDT)YesNo
Intel® Active Management Technology (AMT)YesNo
Intel® Remote Platform Erase (RPE)YesNo
Intel® One-Click RecoveryYesNo
Intel® Hardware Shield EligibilityYesNo
Intel® Total Memory Encryption – Multi KeyYesNo

Intel i9-13900K uses advanced algorithms for boosting processor based security. The i9-13900KF processor lacks these security features.

Windows 11 compatibility

Intel i9-13900K and i9-13900KF processors are fully compatible with Windows 11 operating system. Most OEM suppliers and PC manufacturers will give you desktops and laptops that come with Windows 11 preloaded on i9-13900K and i9-13900KF based systems.

CPU Benchmarks

The following are the CPU performance benchmark scores for Intel i9-13900K and i9-13900KF processors.

CPU BenchmarkIntel i9-13900KIntel i9-13900KF
Cinebench R23 Single core22382279
Cinebench R23 Multi core3843739161
Passmark Single core47314705
Passmark Multi core6056059739
Geekbench 5 Single core23062211
Geekbench 5 Multi core2417924106

Final verdict

Intel i9-13900K and i9-13900KF are equally fast-performing processors. For most practical applications, Intel i9-13900K should be sufficient.

For advanced display experience for gamers, Intel i9-13900KF will be the right choice. Since i9-13900KF does not come with an in-built graphics ability, you could get an advanced graphics engine or driver to work alongside the i9-13900KF.

For non-gaming or non-graphics intensive applications, Intel i9-13900K remains the best bet from the 13th-generation Intel i9 processors.

You may also like to read more comparisons for Intel core processors below:

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Rajesh Dhawan

Rajesh Dhawan is a technology professional who loves to blog about smart wearables, Cloud computing and Microsoft technologies. He loves to break complex problems into manageable chunks of meaningful information.