Intel Core i7-11700KF socket: LGA 1200
The Intel Core i7-11700KF uses the LGA 1200 socket. It matches the 8-core Rocket Lake 11700K in every way except graphics, so a separate card is mandatory on 400 and 500 series boards.
- Socket
- LGA 1200
- Launched
- March 30, 2021
- Cores and threads
- 8 and 16
- Base power
- 125 W
- Codename
- Rocket Lake
- Segment
- Desktop
- Family
- Intel Core i7
- Clocks
- 3.6 / 5.0 GHz
Intel Core i7-11700KF specifications
| Cores | 8 |
|---|---|
| Threads | 16 |
| Core architecture | Cypress Cove |
| Clocks | 3.6 GHz base, up to 4.9 GHz (Turbo Boost 2.0), 5.0 GHz (Turbo Boost Max 3.0) |
| Cache | 16 MB Intel Smart Cache (L3) |
| Processor base power (TDP) | 125 W |
| Manufacturing process | 14 nm |
| Memory support | DDR4 up to 3200 MT/s, two channels, up to 128 GB |
| PCI Express | 20 lanes from the CPU: PCIe 4.0 x16 plus PCIe 4.0 x4 |
| Integrated graphics | None (the F suffix means no graphics, a separate card is required) |
| Multiplier | Unlocked (KF series) |
| Package | FCLGA1200 |
| Cooler in the box | None |
Motherboard and chipset compatibility
Intel Core i7-11700KF needs a motherboard with a LGA 1200 socket. The table shows which chipset series accept it.
| Series | Chipsets | Support |
|---|---|---|
| 500 series | Z590, H570, B560, H510, Q570, W580 | Works out of the box |
| 400 series: Z490, H470, Q470, W480 | Z490, H470, Q470, W480 | Needs a BIOS update Needs a BIOS update from the board maker. PCIe 4.0 depends on how the board is wired. |
| 400 series: B460, H410 | B460, H410 | Not supported |
Board makers publish a CPU support list for every model. Check it for your exact board before buying. Chipset details for LGA 1200.
Recommended GPU pairing
| Recommended tier | Mid-range 1440p |
|---|---|
| Example GPUs | GeForce RTX 3070, Radeon RX 6700 XT |
| Target resolution | 1440p high settings |
Eight cores with boost to 5.0 GHz, 20 PCIe 4.0 lanes and DDR4 suit mid-range 1440p cards from early 2021. A faster card still works and the balance shifts with game, settings and resolution.
This is a rough match for a new build at the stated resolution, not a limit. A faster card still works and helps at higher resolutions or in games that load the GPU more than the CPU. A slower card is fine for lighter games and office use. The exact balance shifts with the game, the settings and the resolution, so no percentage is given.
LGA 1200 at a glance
| Type | LGA, 1,200 contacts |
|---|---|
| Package size | 37.5 × 37.5 mm |
| Introduced | April 2020 |
| Memory | DDR4 only |
| Cooler mounting holes | 75 × 75 mm |
What the Core i7-11700KF is
The Core i7-11700KF is an eight core, sixteen thread processor that Intel released in March 2021 with the Rocket Lake desktop range. Its Cypress Cove cores run 3.6 GHz base to 4.9 GHz turbo with Turbo Boost 2.0, reaching 5.0 GHz with Turbo Boost Max 3.0. Cache is 16 MB of shared L3.
The chip is a 11700K with the integrated GPU disabled. That removes display output and Quick Sync encoding while leaving compute untouched. The TDP is 125 W on the 14 nm process.
The multiplier is unlocked. Intel includes no cooler with KF-series processors.
Socket and motherboard compatibility
The 11700KF fits the LGA 1200 socket. Boards with 500 series chipsets (Z590, H570, B560, H510, Q570, W580) accept it with the shipping BIOS. Among 400 series boards, only Z490, H470, Q470 and W480 can run it, and only after a BIOS update. B460 and H410 boards never support it.
Since the board's video outputs never activate, every stage from first boot to driver install needs a discrete card. Multiplier overclocking needs a Z-series board.
Confirm the minimum BIOS version in the maker's CPU support list. USB BIOS flashback updates the board without a working chip and graphics pair.
Memory, PCIe and cooling
The memory controller supports DDR4 up to 3200 MT/s only. Two channels carry up to 128 GB. Video encoding falls to the discrete card, so creator builds should weigh its media block when choosing a GPU.
The CPU supplies 20 PCIe 4.0 lanes: x16 for graphics plus x4 for storage. The discrete card owns all display output.
Budget cooling around the 125 W base figure alone will throttle under boost. Size for peaks near 250 W with a large air cooler or liquid cooler on the 75 mm LGA 1200 pattern. The CPU cooler compatibility by socket guide covers bracket fit.
PCIe 4.0 arrives, with steep power draw
PCIe 4.0 from the processor was the platform's headline addition over Comet Lake, but only boards wired for it deliver Gen 4 speeds. The board specifications decide, not the chipset name alone.
Power behavior follows the K: short boosts draw high current, so sustained loads need cooling and board power stages sized for it. Without onboard graphics, a failed boot shows nothing on screen, so keep a known-good discrete card handy. On memory tuning, Z590 and B560 boards accept XMP profiles past DDR4-3200 while H510 locks them out, so the board decides how far a kit runs above the official ceiling.
Upgrade paths
Against the Intel Core i7-11700K, the KF is identical in any task that uses a discrete card, with savings from the missing GPU. Against the Intel Core i7-10700K, it adds Cypress Cove IPC and PCIe 4.0 on the same socket, subject to chipset support.
Moving to LGA 1700 needs a new board, new memory for DDR5 builds, and a new cooler bracket. The 11700KF suits a gaming PC that will always carry a discrete card.
Frequently asked questions
What socket does the Intel Core i7-11700KF use?
It uses LGA 1200, written FCLGA1200 in Intel's documents. A discrete graphics card is required.
What is the difference between the 11700KF and the 11700K?
The KF drops the integrated GPU. Pick the K when Quick Sync encoding or troubleshooting without a card matters.
Does the 11700KF run in a Z490 motherboard?
Yes, after a BIOS update that adds Rocket Lake support. B460 and H410 boards never support it, whatever the BIOS.
Does the 11700KF work with DDR5 memory?
No. LGA 1200 is a DDR4 platform. DDR5 arrived with LGA 1700.
Does the 11700KF come with a cooler?
No. KF-series processors ship without a cooler.
Sources and verification
- Intel Core i7-11700KF specifications (Intel)
- Intel Core i7-11700KF datasheet (Reichelt, ARK snapshot)
Facts last checked against these sources on . Page last edited on .