Intel Core i9-12900E socket: LGA 1700
The Intel Core i9-12900E uses LGA 1700, the 1700-contact LGA socket for Alder Lake embedded and desktop processors. The 16-core chip at 65 W needs an embedded or desktop board with the part on the CPU support list.
- Socket
- LGA 1700
- Launched
- January 2022
- Cores and threads
- 16 and 24
- Base power
- 65 W
- Codename
- Alder Lake
- Segment
- Embedded
- Family
- Intel Core i9
- Clocks
- 2.3 / 5.0 GHz
Intel Core i9-12900E specifications
| Cores | 16 (8 Performance-cores and 8 Efficient-cores) |
|---|---|
| Threads | 24 |
| Core architecture | Golden Cove (P-cores) and Gracemont (E-cores) |
| Clocks | 2.3 GHz base, up to 5.0 GHz turbo |
| Cache | 30 MB Intel Smart Cache (L3) |
| Processor base power (TDP) | 65 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 plus PCIe 4.0 x4 |
| Integrated graphics | Intel UHD Graphics 770 (32 execution units, up to 1.55 GHz) |
| Multiplier | Locked |
| ECC memory | Supported (requires board support) |
| Package | FCLGA1700 |
| Cooler in the box | None (tray, cooler depends on system) |
Motherboard and chipset compatibility
Intel Core i9-12900E 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.
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 i9-12900E is
The Intel Core i9-12900E is a 16-core, 24-thread member of the 12th Gen Core family for LGA 1700 systems from January 2022. 8 Performance-cores with 8 Efficient-cores give 16 cores and 24 threads, with base at 2.3 GHz and up to 5.0 GHz boost. The package carries 30 MB of Intel Smart Cache. Processor base power is 65 W.
Memory support covers DDR5 up to 4800 MT/s or DDR4 up to 3200 MT/s, two channels, up to 128 GB. The board memory type is fixed at purchase, so DDR4 and DDR5 boards are separate designs. Twenty CPU lanes split as Gen5 x16 plus Gen4 x4 wire a graphics card and NVMe storage. Intel UHD Graphics 770 (32 execution units, up to 1.55 GHz) drives displays without a card, with four display outputs on most boards. The CPU cooler compatibility by socket guide explains board choice.
This E or TE suffix marks an embedded tray part for embedded systems, kiosks and edge boxes that run for years. Long-life boards with the correct chipset carry it, and the CPU support list names the exact suffix. ECC memory is supported where the board chipset allows it, which matters for unattended machines. Builders who need a boxed cooler or a retail pack should pick the matching non-E desktop SKU such as Intel Core i7-12700 on the same LGA 1700.
Socket and motherboard compatibility
The 12900E fits LGA 1700 on single-socket desktop or embedded boards with LGA 1700 retention and desktop power delivery. Board lists must name the Intel Core i9-12900E part for qualification, including the suffix for T, E and TE low-power variants.
600 series boards accept the chip with a shipping BIOS, and 700 series boards cover it as well per the socket compatibility table. Check the board CPU list before mixing this SKU with other steppings, and confirm that embedded E and TE support is listed separately from desktop T support. The CPU cooler compatibility by socket guide shows how chipset series map to generations.
Memory, PCIe and cooling
DDR5 up to 4800 MT/s or DDR4 up to 3200 MT/s, two channels, up to 128 GB feeds the cores, and matched DIMMs hold the rated speed. The board memory type is fixed at purchase, so DDR4 and DDR5 boards are separate designs with different slots.
Twenty CPU lanes as Gen5 x16 plus Gen4 x4 wire a graphics card and NVMe, with the exact split fixed per board. Boards that need more than the CPU lanes use chipset lanes for SATA, USB and extra slots.
No boxed cooler is included with this tray part. System builders fit a cooler rated for 65 W, and the 45.0 × 37.5 mm FCLGA1700 package uses standard LGA retention with even mounting pressure.
Upgrade paths
On LGA 1700 the upward moves are higher-core Alder Lake and Raptor Lake parts where thread counts grow, up to i7 and i9 SKUs on boards with power delivery for them. For this 16-core SKU, memory growth and a discrete graphics card often help more than clocks alone.
Outside this SKU, Intel Core i7-12700 on LGA 1700 trims or adds cores for lighter or denser builds. A move to LGA 1851 needs a new board with DDR5, so socket-local growth comes first. The How to find your CPU socket type guide explains when a board change pays off.
Frequently asked questions
What socket does the Intel Core i9-12900E use?
LGA 1700 on desktop or embedded boards with the part on the CPU support list.
How many cores does the Intel Core i9-12900E have?
16 cores with 24 threads: 8 Performance-cores plus 8 Efficient-cores, with 30 MB of Smart Cache.
What memory does the Intel Core i9-12900E support?
DDR5 up to 4800 MT/s or DDR4 up to 3200 MT/s in two channels, up to 128 GB.
What is the base power of the Intel Core i9-12900E?
65 W processor base power.
What graphics does the Intel Core i9-12900E include?
Intel UHD Graphics 770 (32 execution units, up to 1.55 GHz).
Sources and verification
- Intel Intel Core i9-12900E specifications (Intel ARK)
- Intel Intel Core i9-12900E specs (TechPowerUp CPU database)
Facts last checked against these sources on . Page last edited on .