Intel Core i5-10400F socket: LGA 1200
The Intel Core i5-10400F uses the LGA 1200 socket. It is the graphics-less 65 W 6-core Comet Lake chip that became a budget gaming staple, so a separate graphics card is required.
- Socket
- LGA 1200
- Launched
- April 2020
- Cores and threads
- 6 and 12
- Base power
- 65 W
- Codename
- Comet Lake
- Segment
- Desktop
- Family
- Intel Core i5
- Clocks
- 2.9 / 4.3 GHz
Intel Core i5-10400F specifications
| Cores | 6 |
|---|---|
| Threads | 12 |
| Core architecture | Skylake based cores on 14 nm |
| Clocks | 2.9 GHz base, up to 4.3 GHz (Turbo Boost 2.0) |
| Cache | 12 MB Intel Smart Cache (L3) |
| Processor base power (TDP) | 65 W |
| Maximum turbo power | 134 W |
| Manufacturing process | 14 nm |
| Memory support | DDR4 up to 2666 MT/s, two channels, up to 128 GB |
| PCI Express | 16 lanes from the CPU, PCIe 3.0 |
| Integrated graphics | None (the F suffix means no graphics, a separate card is required) |
| Multiplier | Locked |
| Package | FCLGA1200 |
Motherboard and chipset compatibility
Intel Core i5-10400F 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 | Works out of the box |
| 400 series: B460, H410 | B460, H410 | 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 1200.
Recommended GPU pairing
| Recommended tier | Mid-range 1080p |
|---|---|
| Example GPUs | GeForce GTX 1660 Super, Radeon RX 5500 XT |
| Target resolution | 1080p high settings |
Six cores with boost to 4.3 GHz, 16 PCIe 3.0 lanes and DDR4 line up with mid-range 1080p cards from 2020. 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 i5-10400F is
The Core i5-10400F is a six core, twelve thread processor that Intel released in 2020 with the locked 65 W Comet Lake range. Its cores run 2.9 GHz base to 4.3 GHz turbo with Turbo Boost 2.0. Cache is 12 MB of shared L3.
The F suffix marks a 10400 with the integrated GPU disabled, so every display connects through a discrete card. Compute performance matches the 10400 exactly. The TDP is 65 W with maximum turbo power at 134 W on the 14 nm process.
The multiplier is locked. On memory tuning, Z490 and Z590 boards accept XMP kits past DDR4-2666 while H-series boards hold narrower ranges, so the board decides how far a kit runs.
Socket and motherboard compatibility
The 10400F fits the LGA 1200 socket. Boards with 400 series chipsets (Z490, H470, Q470, W480, B460, H410) accept it from the start. Later 500 series boards accept Comet Lake natively as well.
A discrete card must be fitted for every boot, including BIOS setup and updates. B460 boards were the classic pairing: low cost with the memory locked near official speeds, which suited this chip well.
Check the maker's CPU support list for the minimum BIOS version. USB BIOS flashback boards apply the update without a working processor and graphics pair.
Memory, PCIe and cooling
The memory controller supports DDR4 up to 2666 MT/s officially. Two channels carry up to 128 GB. Faster kits run through XMP profiles on boards that allow memory overclocking.
The CPU supplies 16 PCIe 3.0 lanes for the discrete graphics card. All monitors connect to the discrete card, and fast storage hangs off chipset lanes.
At 65 W base with 134 W peaks, basic cooling suffices with airflow while a tower cooler runs quieter. Mounting uses the 75 mm LGA 1200 pattern in the CPU cooler compatibility by socket guide.
A budget gaming staple on a mature lineage
Comet Lake kept the Skylake lineage on 14 nm with high clocks, which made the locked i5 a budget gaming staple for 1080p builds. Six threads with boost past 4 GHz carried 2020 titles well on modest boards.
Without integrated graphics, troubleshooting needs a known-good discrete card, so keep one available until the build proves stable. Power behavior stays modest, with short boosts to 134 W setting the cooling bar.
Upgrade paths
Against the Intel Core i5-10400, which adds UHD 630 graphics for display output and troubleshooting, the 10400F costs less and performs identically with a discrete card. Against the Intel Core i7-10700K, it trades two cores and boost headroom for savings on the same socket.
Moving to LGA 1700 needs a new board, new memory for DDR5 builds, and a new cooler bracket. The 10400F fits a budget gaming tower that will always carry a discrete card.
Frequently asked questions
What socket does the Intel Core i5-10400F use?
It uses LGA 1200, written FCLGA1200 in Intel's documents. A discrete graphics card is required.
What is the difference between the 10400F and the 10400?
The F has no integrated graphics. Choose the plain 10400 when the PC may need display output without a separate card.
Does the 10400F run in a B460 motherboard?
Yes. B460 and H410 boards accept Comet Lake from the start, and B560 boards accept it natively too.
What memory speed does the 10400F support?
Officially up to DDR4-2666. Faster kits run through XMP profiles, which count as overclocking.
Can the 10400F encode video without a graphics card?
No Quick Sync block is available, so recording and streaming encode on the discrete card. Choose a card with a capable media block when encoding matters.
Sources and verification
Facts last checked against these sources on . Page last edited on .