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Intel Core I9 11900KF (11th Gen) processor
Intel

11th Gen Intel Core i9 11900KF

View on intel.com
Boost/Base Clock:
5.3 GHz / 3.5 GHz
Core/Thread Count:
8C/16T
Cache:
16MB L3 + 2MB L2 + 512KB L1
TDP:
125W
CPU Process Node:
14 Nanometers
CPU Socket:
FCLGA1200
CPU Series:
Rocket Lake, 11th Gen Intel Core
Memory Support:
DDR4-3200
Form Factor:
Desktop

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Manufacturer: Intel Last updated: September 9, 2026

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11th Gen Intel Core i9 11900KF Review

The 11th Gen Intel Core i9 11900KF is the F-suffix variant of Intel's Rocket Lake flagship i9-11900K, an 8-core, 16-thread desktop processor without integrated graphics, running a 3.5 GHz base clock that boosts to a genuinely high 5.3 GHz within a 125 Watt TDP.

Sharing identical CPU specifications with the standard i9-11900K, this variant drops the integrated GPU for a lower price, appropriate for enthusiast gaming builders who already have a discrete GPU planned.

Integrated Graphics

This F-suffix variant ships without a functional integrated GPU; a discrete graphics card is required for display output, in exchange for a lower price than the standard i9-11900K.

How Is the Core i9 11900KF in Terms of Performance

The unlocked 8-core, 16-thread layout with a genuinely high 5.3 GHz boost clock gives this chip Intel's strongest Rocket Lake gaming performance, delivering identical CPU-side capability to the integrated-graphics i9-11900K.

Benchmarks

The benchmarks below are published results for specific applications. They are measured separately and do not feed the two scores above.

Puget Bench for Lightroom Classic v1.0-1.1 - points (More is Better)

  • Apple M5 Max
    11549.6 points
  • AMD Ryzen 7 9800X3D
    10942.9 points
  • Apple M5 Pro
    10909.17 points
  • Apple M5
    6668.19 points
  • 11th Gen Intel Core i7 11700K
    6167.4 points
  • 10th Gen Intel Core i9 10850K
    5769.67 points
  • 11th Gen Intel Core i5 11600KF
    5499.67 points
  • 11th Gen Intel Core i9 11900KF (this product)
    4124 points

Measures a full Lightroom Classic catalogue workflow: importing, building previews, scrolling the library, exporting JPEGs and running the AI tools such as Denoise.

Import and export spread across every core, so core count counts for more here than it does in Photoshop. The AI tools lean on the graphics card, so a CPU gap matters less if you pair either chip with a strong GPU.

Benchmarks

As the F-suffix twin of the flagship i9-11900K, this chip shares the same 8-core Rocket Lake architecture and class-leading 5.3 GHz boost ceiling, delivering identical CPU-side gaming and productivity performance to its integrated-graphics sibling.

Our verdict

Reviewed by Burooj Alam. Rated by us, not by users.

Best for

  • Enthusiast gaming desktop builds with a discrete GPU already planned wanting Intel's flagship Rocket Lake performance at a lower price

Not for

  • Buyers wanting a fallback integrated GPU, the standard i9-11900K includes UHD 750

Specifications

What these specs mean

Identity

BrandIntel
Product LineCore i9
Model Number11900KF
CodenameRocket Lake
Release Year2021

Segment and platform

Market SegmentDesktop
MicroarchitectureRocket Lake, 11th Gen Intel Core
SocketFCLGA1200
Socket StatusEnd of Life
Process Node14 nm

Core configuration

Total Cores8
Performance Cores8
Efficiency Cores0
Total Threads16
SMT EnabledYes

Clock speeds

P-Core Base Clock3.5 GHz
P-Core Boost Clock5.3 GHz

Cache

L2 Cache2 MB
L3 Cache16 MB

Power and thermal

Base Power125 W

Memory

Memory TypeDDR4
Max Memory Speed4 MT/s
Memory Channels2
ECC SupportNo

Graphics and AI

Integrated GraphicsNo

Expansion

PCIe GenerationPCIe 4.0
PCIe Lanes20

Commercial

Launch MSRP549 USD
Retail AvailabilityRetail
Form FactorDesktop
TDP125 W

FAQs

What are the key specifications of the 11th Gen Intel Core i9 11900KF?

The 11th Gen Intel Core i9 11900KF has 8 cores and 16 threads, a 3.5 GHz base and 5.3 GHz boost clock, 16 MB of L3 cache and a 125 W TDP. It has no integrated graphics, so it needs a graphics card. Socket: FCLGA1200.

Will the 11th Gen Intel Core i9 11900KF work with my current setup?

The 11th Gen Intel Core i9 11900KF lists CPU Socket is LGA 1200. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.

Who is the 11th Gen Intel Core i9 11900KF best suited to?

Best suited to: Enthusiast gaming desktop builds with a discrete GPU already planned wanting Intel's flagship Rocket Lake performance at a lower price.

What are the drawbacks of the 11th Gen Intel Core i9 11900KF?

Not the best fit for: Buyers wanting a fallback integrated GPU, the standard i9-11900K includes UHD 750.

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