Quick Verdict
A fast, overclockable CPU that delivers top-tier gaming performance, but runs very hot and requires high-end cooling to reach its full potential.
Overview
Launch
Mar 16th, 2021
Status
End-of-lifeGeneration
11th Generation
Market
Desktop
The Intel Core i7-11700KF is a high-performance desktop processor from the Rocket Lake-S generation, released in March 2021. It features 8 cores and 16 threads built on Intel's 14nm process. The 'K' signifies an unlocked multiplier for overclocking, while the 'F' indicates the absence of integrated graphics. Operating at a base clock of 3.6 GHz and boosting up to 5.0 GHz, it is designed for enthusiasts who prioritize raw frequency and tuning. With a TDP of 125W, it requires robust cooling. The processor includes 16 MB of L3 cache and supports 20 PCIe 4.0 lanes, ensuring maximum bandwidth for multiple GPUs and fast storage. The 11700KF caters to gamers and overclockers who want top-tier single-core speeds and multi-core grunt without paying for integrated graphics they won't use.
The i7-11700KF is built for raw performance. With an unlocked multiplier, it allows enthusiasts to push clocks beyond 5.0 GHz.
The lack of integrated graphics routes all thermal headroom to the CPU cores. At 125W, it demands a robust motherboard and cooler, but delivers outstanding gaming and multi-core performance on the LGA 1200 platform.
Specifications
Performance
8 cores at 5.0 GHz make short work of compilation and rendering tasks.
Strong core count and clock speeds provide excellent VM performance.
Outstanding gaming performance, easily pushing 240Hz+ in esports titles when paired with fast RAM and a high-end GPU.
The 14nm process at 125W+ is highly inefficient and generates massive heat under load.
- •5.0 GHz boost is excellent for CPU-bound games
- •PCIe 4.0 ensures zero GPU bottlenecks
- •Requires a dedicated GPU
- •AVX-512 accelerates specific workloads
- •High clock speeds help with CPU-based inference
Architecture
14nm
Process Node
Rocket Lake
Codename
8C / 16T
Core Config
16 MB
L3 Cache
125 W
TDP
Architecture Overview
Rocket Lake-S utilizes the Cypress Cove architecture, a backport of 10nm Sunny Cove to the 14nm process.
CPU Design
The Core i7-11700KF features 8 Cypress Cove cores, offering substantial IPC gains over Comet Lake.
Memory Subsystem
The architecture introduces 20 PCIe 4.0 lanes to the consumer desktop platform, a first for Intel.
PCIe & I/O
As a 'KF' SKU, it lacks the Xe-based UHD Graphics, allowing the 14nm die to focus purely on CPU performance within its thermal envelope.
Overclocking
The unlocked multiplier gives enthusiasts full control over clock speeds and voltages. The dual-channel DDR4-3200 controller provides ample bandwidth for gaming and memory-heavy applications.
- Higher IPC via Cypress Cove
- PCIe 4.0 support
- Higher maximum boost clocks
Key Highlights
- Unlocked for overclocking
- Hits 5.0 GHz on single cores
- 20 PCIe 4.0 lanes
- Excellent single-thread performance
- Runs extremely hot under load
- 125W TDP requires heavy-duty cooling
- No integrated graphics
- 14nm process is inefficient
History
Introduced in March 2021, the Core i7-11700KF was Intel's flagship overclockable i7 for the 11th Gen desktop lineup. It launched during a critical period when AMD's Ryzen 7 5800X was dominating the enthusiast market. Rocket Lake was Intel's 14nm stopgap, bringing PCIe 4.
0 and improved IPC to compete while 10nm Alder Lake was finalized. The 11700KF targeted hardcore gamers and overclockers who wanted 5.0 GHz boost clocks and unlocked tuning without paying the i9 premium.
Despite running hot and drawing significant power under load, it proved capable in gaming benchmarks. This chip represents the peak of Intel's 14nm desktop tuning, closing out an era before the introduction of the hybrid architecture that redefined the brand's product stack in late 2021.
Improvements over Previous Generation
- Higher IPC via Cypress Cove
- PCIe 4.0 support
- Higher maximum boost clocks
Alternatives & Competitors
Should You Buy It?
Recommended for the right buyer
Enthusiast upgrading an existing Z590 system with high-end cooling.
Avoid if…
- Building a new PC (12th Gen or newer is better)
- Using a budget motherboard
- Lacking high-end cooling solutions
Use Cases
Interesting Facts
Unlocked for overclocking (K suffix).
No integrated graphics (F suffix).
Base clock 3.6 GHz.
Boosts up to 5.0 GHz.
125W TDP.
14nm Rocket Lake architecture.
20 PCIe 4.0 lanes.
Fits LGA 1200 socket.
Requires dedicated GPU.
Released March 2021.
People Also Ask
Is the 11700KF good for gaming?
Yes, excellent for high-refresh-rate gaming, pushing 5.0 GHz.
Can it boot without a GPU?
No, you absolutely need a dedicated GPU.
Does it support DDR5?
No, it only supports DDR4 memory.
Is it better than 10700KF?
Yes, higher IPC, PCIe 4.0, and higher boost clocks.
Does it run hot?
Yes, the 14nm process at 125W generates significant heat.
What cooler is recommended?
A 360mm AIO liquid cooler is highly recommended for overclocking.
Can it run Windows 11?
Yes, it is fully compatible.
What is the base clock?
The base clock is 3.6 GHz.
Does it have AVX-512?
Yes, it supports AVX-512 instructions.
What is the max memory?
It supports up to 128 GB of DDR4 memory.
Frequently Asked Questions
What does KF mean in Intel?
K means unlocked for overclocking, F means no integrated graphics.
Can you overclock the 11700KF?
Yes, the multiplier is fully unlocked.
What is the turbo speed?
The maximum turbo speed is 5.0 GHz.
Does it have integrated graphics?
No, a dedicated GPU is required.
What is the TDP?
The base TDP is 125 Watts.
What socket does it use?
It uses the LGA 1200 socket.
Does it support PCIe 4.0?
Yes, it has 20 PCIe 4.0 lanes.
Does it include a cooler?
No, it does not include a stock cooler.
When was it released?
It was released in March 2021.
How much L3 cache?
It has 16 MB of L3 cache.