Intel Core i7-12700K socket: LGA 1700
The Intel Core i7-12700K uses the LGA 1700 socket. It is a 12-core unlocked Alder Lake processor that reviewers called the gaming value pick of the 12th Gen launch, on 600 series boards and later 700 series boards.
- Socket
- LGA 1700
- Launched
- November 4, 2021
- Cores and threads
- 12 and 20
- Base power
- 125 W
- Codename
- Alder Lake
- Segment
- Desktop
- Family
- Intel Core i7
- Clocks
- 3.6 / 5.0 GHz
Intel Core i7-12700K specifications
| Cores | 12 (8 Performance-cores and 4 Efficient-cores) |
|---|---|
| Threads | 20 |
| Core architecture | Golden Cove (P-cores) and Gracemont (E-cores) |
| P-core clocks | 3.6 GHz base, up to 4.9 GHz turbo, 5.0 GHz with Turbo Boost Max 3.0 |
| E-core clocks | 2.7 GHz base, up to 3.8 GHz turbo |
| Cache | 25 MB Intel Smart Cache (L3) and 12 MB total L2 |
| Processor base power (TDP) | 125 W |
| Maximum turbo power | 190 W |
| Manufacturing process | Intel 7 |
| Memory support | DDR5 up to 4800 MT/s or DDR4 up to 3200 MT/s, two channels, up to 128 GB |
| PCI Express | 20 lanes from the CPU: PCIe 5.0 x16 (or 2 x8) plus PCIe 4.0 x4 |
| Integrated graphics | Intel UHD Graphics 770 (32 execution units, up to 1.50 GHz) |
| Multiplier | Unlocked (K series) |
| Package | FCLGA1700 |
| Cooler in the box | None |
| Launch price | $409 (Intel RCP) |
Motherboard and chipset compatibility
Intel Core i7-12700K needs a motherboard with a LGA 1700 socket. The table shows which chipset series accept it.
| Series | Chipsets | Support |
|---|---|---|
| 700 series | Z790, H770, B760 | Works out of the box |
| 600 series | Z690, H670, B660, H610, Q670, W680 | Works out of the box |
Board makers publish a CPU support list for every model. Check it for your exact board before buying. Chipset details for LGA 1700.
Recommended GPU pairing
| Recommended tier | High-end 1440p |
|---|---|
| Example GPUs | GeForce RTX 3070 Ti, Radeon RX 6800 XT |
| Target resolution | 1440p high settings |
Twelve hybrid cores with boost to 5.0 GHz, 20 PCIe lanes with PCIe 5.0 graphics and DDR5 suit high-end 1440p cards from late 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 1700 at a glance
| Type | LGA, 1,700 contacts |
|---|---|
| Package size | 45.0 × 37.5 mm |
| Introduced | November 2021 |
| Memory | DDR4 or DDR5, set by the motherboard (one type per board) |
| Cooler mounting holes | 78 × 78 mm |
What the Core i7-12700K is
The Core i7-12700K is a twelve core, twenty thread processor that Intel released in November 2021 with the Alder Lake desktop range. It has 8 Performance-cores with two threads each and 4 Efficient-cores with one each. Performance-cores run 3.6 GHz base to 4.9 GHz turbo, reaching 5.0 GHz with Turbo Boost Max 3.0, while Efficient-cores run 2.7 GHz to 3.8 GHz. Cache is 25 MB of shared L3 with 12 MB of total L2.
Review coverage at launch stressed how close its gaming results ran to the flagship while costing far less. Threaded work trails the i9 by the four missing Efficient-cores. Intel rates the base power at 125 W with maximum turbo power at 190 W. The process is Intel 7.
Intel UHD Graphics 770 cover display output, with 32 execution units at up to 1.5 GHz. The multiplier is unlocked. The launch price was $409 (Intel RCP). Intel includes no cooler with K-series processors.
Socket and motherboard compatibility
The 12700K fits the LGA 1700 socket and launched with the 600 series chipsets (Z690, H670, B660, H610, Q670, W680). Later 700 series boards (Z790, H770, B760) accept it as part of socket-wide compatibility.
A Z690 or Z790 board unlocks the multiplier. B-series boards run rated clocks and suit buyers who choose the K for higher stock clocks rather than overclocking. The 190 W ceiling still asks for solid voltage stages.
Check the maker's CPU support list for the minimum BIOS version. USB BIOS flashback boards apply updates without a supported processor installed.
Memory, PCIe and cooling
The memory controller supports DDR5 up to 4800 MT/s or DDR4 up to 3200 MT/s, with the board deciding the type. Two channels carry up to 128 GB. DDR4 boards were popular at launch because mature kits were cheap and fast, while DDR5 carried an early premium.
The CPU supplies 20 PCIe lanes: x16 at PCIe 5.0 for graphics, splittable into two x8, plus x4 at PCIe 4.0 for storage. Chipset lanes serve the remaining devices.
Size cooling for the 190 W ceiling with a large air cooler or 240 mm liquid cooler on the 78 mm LGA 1700 pattern. The CPU cooler compatibility by socket guide covers aftermarket brackets.
Thread Director and the DDR4 or DDR5 choice
Thread Director scheduling and the DDR4 or DDR5 board choice defined the Alder Lake platform. Windows 11 uses Thread Director hints to place threads on the right core type, while older Windows versions schedule with less precision. Launch reviews measured the chip on Windows 11 for that reason.
On memory, DDR4 boards kept build costs down while DDR5 boards bought early access to the new standard. Both observe the official ceilings above without overclocking.
Upgrade paths
Against the Intel Core i9-12900K, the 12700K keeps most gaming pace with fewer Efficient-cores for less money. Against the Intel Core i5-12400F, it adds threads, cache and unlocked multipliers on the same socket, subject to cooling.
Later LGA 1851 platforms need a new board and DDR5. The 12700K fits a gaming build that wants unlocked headroom without i9 pricing.
Frequently asked questions
What socket does the Intel Core i7-12700K use?
It uses LGA 1700, written FCLGA1700 in Intel's documents.
What is the difference between the 12700K and the 12700KF?
The KF has no integrated graphics and needs a separate card. Everything else matches the K.
Does the 12700K run in a Z790 motherboard?
Yes. Z790, H770 and B760 boards accept Alder Lake processors, sometimes after a BIOS update on very early stock.
Does the 12700K work with DDR4 memory?
Yes, on a DDR4 board up to DDR4-3200. A DDR5 board needs DDR5 modules instead, up to DDR5-4800.
Does the 12700K come with a cooler?
No. K-series processors ship without a cooler, and 190 W peaks need a capable air cooler or liquid cooler.
Sources and verification
- Intel Core i7-12700K specifications (Intel)
- Intel Core i7-12700K review with launch pricing table (Tom's Hardware)
Facts last checked against these sources on . Page last edited on .