11th Gen Intel Core i9 11900KF
- Boost/Base Clock:
- 5.3 GHz / 3.5 GHz
- Core/Thread Count:
- 8 Core / 16 Thread
- Cache:
- 16MB L3 + 2MB L2 + 512KB L1
- TDP:
- 125 Watts
- CPU Process Node:
- 14 Nanometers
- CPU Socket:
- LGA 1200
- CPU Series:
- Rocket Lake
- Memory Support:
- DDR4-3200
- Form Factor:
- Desktop
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Manufacturer: Intel Last updated: September 9, 2026
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
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.
Specifications
Identity
| Brand | Intel |
|---|---|
| Product Line | Core i9 |
| Product Line | Core i9 |
| Model Number | 11900KF |
| Codename | Rocket Lake |
| Release Year | 2021 |
Segment and platform
| Market Segment | Desktop |
|---|---|
| Microarchitecture | Rocket Lake, 11th Gen Intel Core |
| Socket | LGA 1200 |
| Socket Status | End of Life |
| Process Node | 14 nm |
| Process Node | 14 nm |
Core configuration
| SMT Enabled | Yes |
|---|
Clock speeds
| P-Core Base Clock | 3.5 GHz |
|---|---|
| P-Core Boost Clock | 5.3 GHz |
Cache
| L2 Cache | 2 MB |
|---|---|
| L3 Cache | 16 MB |
Power and thermal
| Base Power | 125 W |
|---|
Memory
| Memory Type | DDR4 |
|---|---|
| Memory Channels | 2 |
| ECC Support | No |
Graphics and AI
| Integrated Graphics | No |
|---|
Expansion
| PCIe Generation | PCIe 4.0 |
|---|---|
| PCIe Lanes | 20 |
Commercial
| Launch MSRP | 549 USD |
|---|---|
| Retail Availability | Retail |
| Form Factor | Desktop |
|---|---|
| Core/Thread Count | 8 Core / 16 Thread |
| TDP | 125 W |
| Cache | 16MB L3 + 2MB L2 + 512KB L1 |
| Boost/Base Clock | 5.3 GHz / 3.5 GHz |
| Memory Speed | DDR4-3200 |
Expert Review
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
FAQs
What are the key specifications of the 11th Gen Intel Core i9 11900KF?
The 11th Gen Intel Core i9 11900KF is a processor from Intel. Key specs: Boost/Base Clock 5.3 GHz / 3.5 GHz, Core/Thread Count 8 Core / 16 Thread, Cache 16MB L3 + 2MB L2 + 512KB L1, TDP 125 Watts, CPU Process Node 14 Nanometers.
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?
It suits 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?
It is a poor fit for buyers wanting a fallback integrated gpu — the standard i9-11900k includes uhd 750.