Intel Core i5-11600K socket: LGA 1200
The Intel Core i5-11600K uses the LGA 1200 socket. It is a 6-core unlocked Rocket Lake processor that reviewers picked as the value gaming chip of the 11th Gen launch, on 500 series boards and selected 400 series boards.
- Socket
- LGA 1200
- Launched
- March 30, 2021
- Cores and threads
- 6 and 12
- Base power
- 125 W
- Codename
- Rocket Lake
- Segment
- Desktop
- Family
- Intel Core i5
- Clocks
- 3.9 / 4.9 GHz
Intel Core i5-11600K specifications
| Cores | 6 |
|---|---|
| Threads | 12 |
| Core architecture | Cypress Cove |
| Clocks | 3.9 GHz base, up to 4.9 GHz (Turbo Boost 2.0), up to 4.6 GHz all-core |
| Cache | 12 MB Intel Smart Cache (L3) and 3 MB total L2 |
| Processor base power (TDP) | 125 W |
| Maximum turbo power | 250 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 | Intel UHD Graphics 750 (32 execution units, up to 1.30 GHz) |
| Multiplier | Unlocked (K series) |
| Package | FCLGA1200 |
| Cooler in the box | None |
| Launch price | $262 (Intel RCP) |
Motherboard and chipset compatibility
Intel Core i5-11600K 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 1080p |
|---|---|
| Example GPUs | GeForce RTX 3060, Radeon RX 6600 XT |
| Target resolution | 1080p high settings |
Six cores with boost to 4.9 GHz, 20 PCIe 4.0 lanes and DDR4 line up with mid-range 1080p 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 i5-11600K is
The Core i5-11600K is a six core, twelve thread processor that Intel released in March 2021 with the Rocket Lake desktop range. Its Cypress Cove cores run 3.9 GHz base to 4.9 GHz turbo with Turbo Boost 2.0, with up to 4.6 GHz across all cores. Cache is 12 MB of shared L3 with 3 MB of total L2.
Launch coverage rated it the sensible gaming buy of the generation, trading blows with pricier chips in many titles. Intel rates the TDP at 125 W with peaks near 250 W under boost. The process is 14 nm.
Intel UHD Graphics 750 cover display output, with 32 execution units at up to 1.30 GHz. The multiplier is unlocked. The launch price was $262 (Intel RCP). Intel includes no cooler with K-series processors.
Socket and motherboard compatibility
The 11600K 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.
A Z590 or updated Z490 board unlocks the multiplier. B560 allows memory overclocking without CPU overclocking, which suits buyers who choose the K for higher stock clocks. Budget boards can limit sustained boost near 250 W peaks.
Check the maker's CPU support list for the minimum BIOS version before buying.
Memory, PCIe and cooling
The memory controller supports DDR4 up to 3200 MT/s only. Two channels carry up to 128 GB. Faster kits run through XMP profiles, which B560 and Z-series boards accept while H510 holds official speeds.
The CPU supplies 20 PCIe 4.0 lanes: x16 for graphics plus x4 for storage. Rocket Lake introduced PCIe 4.0 to the mainstream platform, but the board must be wired for it.
Cooling should target peaks near 250 W rather than the 125 W base. A capable tower cooler or liquid cooler is realistic. Mounting uses the 75 mm LGA 1200 pattern shared with older Intel sockets, covered in the CPU cooler compatibility by socket guide.
PCIe 4.0 arrives, with steep power draw
PCIe 4.0 from the processor was the platform's headline addition over Comet Lake, doubling link speeds for graphics and NVMe storage where the board supports it. The 400 series split still applies: Z490, H470, Q470 and W480 boards can take the chip after an update, while B460 and H410 cannot.
Power behavior follows the bigger Rocket Lake chips in miniature. Short boosts draw high current, so sustained loads need cooling and board power stages sized beyond the base rating.
Upgrade paths
Against the Intel Core i7-11700K, the 11600K keeps most gaming pace with fewer cores for less money. Against the Intel Core i7-10700K, it trades two cores for 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 11600K fits a gaming build that wants unlocked headroom without i7 pricing.
Frequently asked questions
What socket does the Intel Core i5-11600K use?
It uses LGA 1200, written FCLGA1200 in Intel's documents.
What is the difference between the 11600K and the 11600KF?
The KF has no integrated graphics and needs a separate card. Clocks, cores, cache and power match the K.
Does the 11600K 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 11600K work with DDR5 memory?
No. LGA 1200 is a DDR4 platform. DDR5 arrived with LGA 1700.
Does the 11600K come with a cooler?
No. K-series processors ship without a cooler.
Sources and verification
- Intel Core i5-11600K specifications (Intel)
- Intel Core i5-11600K benchmarks and specs (Notebookcheck)
Facts last checked against these sources on . Page last edited on .