Intel Core 9 273PE socket: LGA 1700
The Intel Core 9 273PE uses the LGA 1700 socket. It is a 12-core Bartlett Lake embedded processor for industrial and edge systems, and consumer 600 and 700 series boards have no BIOS support for it, so it runs only on industrial boards that list it.
- Socket
- LGA 1700
- Launched
- March 2026
- Cores and threads
- 12 and 24
- Base power
- 65 W
- Codename
- Bartlett Lake
- Segment
- Embedded
- Family
- Intel Core 9
- Clocks
- 2.3 / 5.7 GHz
Intel Core 9 273PE specifications
| Cores | 12 (12 Performance-cores, no Efficient-cores) |
|---|---|
| Threads | 24 |
| P-core clocks | 2.3 GHz base, up to 5.4 GHz turbo (up to 5.7 GHz Thermal Velocity Boost) |
| Cache | 36 MB Intel Smart Cache (L3) |
| Processor base power (TDP) | 65 W |
| Suffix meaning | PE marks the 65 W embedded class (PTE is 45 W, PQE is 125 W) |
| Manufacturing process | Intel 7 |
| Memory support | DDR5 up to 5600 MT/s or DDR4 up to 3200 MT/s, two channels, up to 192 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, 300 MHz to 1.65 GHz) |
| ECC memory | Yes |
| Package | FCLGA1700 (45.0 × 37.5 mm) |
| Launch price | $549 (Intel RCP, tray) |
Motherboard compatibility
Intel Core 9 273PE needs a motherboard with a LGA 1700 socket. Chipset by chipset data for this codename is not recorded yet. See the LGA 1700 chipset list and the board maker's CPU support list.
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 9 273PE is
The Intel Core 9 273PE sits in the middle of the twelve core Bartlett Lake embedded set, between the 45 W 273PTE below and the 125 W 273PQE above. Intel lists it under Core Series 2 as an embedded vertical segment part launched in the first quarter of 2026. Twelve Performance-cores with Hyper-Threading give 24 threads, backed by 36 MB of Intel Smart Cache and no Efficient-cores. Base frequency is 2.3 GHz, Performance-cores reach 5.4 GHz, and Thermal Velocity Boost peaks at 5.7 GHz on Intel 7.
Intel prices the 273PE at the same $549 recommended customer price as the 45 W 273PTE, so the choice between them is thermal envelope rather than budget. A chassis that exhausts 65 W buys 900 MHz of extra base frequency over the PTE part, which lifts sustained all core throughput in gateway and controller workloads that never idle. Single thread peaks stay close across the two SKUs, since both draw from the same boost class.
Edge installations prize steady behavior over burst records, and a uniform twelve core die serves that goal. Identical cores share caches and memory paths symmetrically, which keeps multi threaded packet and inspection jobs balanced without scheduler awareness of core types. Combined with Time Coordinated Computing and Time Sensitive Networking support in the family, the 273PE fits control cabinets and aggregation points that run fixed software images for years.
Socket and motherboard compatibility
The 273PE seats in LGA 1700 as an FCLGA1700 package, yet only industrial firmware starts it. Boards built for the embedded line, generally around W680 and Q670 class chipsets alongside R680E, Q670e, H610E and H610 options named for the family, carry the initialization code these parts need. Confirm the 273PE by name on the board CPU support list, since one industrial board can validate the 65 W class while another validates only the 45 W or 125 W classes.
Retail desktop boards are not an option. ASRock stated it will not add Bartlett Lake support to its consumer LGA 1700 range including Z790, placing the family strictly in industrial PCs, embedded motherboards and touchscreen style equipment. A consumer board with an older BIOS halts before POST when it meets an unknown processor, and here no newer BIOS exists to add. The desktop upgrade story on this socket therefore ends with the 14th Gen.
For new deployments, match the board class to the site. W680 class designs bring ECC memory for unmanned locations, while Q670 class designs suit managed device fleets with remote administration. The Socket vs chipset: what decides whether a CPU works guide describes how chipset generation and BIOS level jointly decide processor support.
Memory, PCIe and cooling
DDR5 up to 5600 MT/s or DDR4 up to 3200 MT/s is supported over two channels to 192 GB, with the slot type fixed by the board. DDR4 variants keep existing industrial memory in service, and DDR5 variants feed the 32 execution unit integrated graphics plus large packet buffers. ECC support is standard on the memory controller, and W680 class boards expose it for error sensitive logging and transaction roles.
Expansion uses 20 processor lanes: sixteen PCIe 5.0 lanes that typically feed a high speed network card or accelerator, and four PCIe 4.0 lanes for NVMe storage, backed by eight DMI 4 lanes to the chipset. Intel UHD Graphics 770 runs up to four simultaneous displays with 8K DisplayPort output, which covers operator consoles and video walls without discrete graphics.
Cooling a 65 W base power part calls for an industrial heatsink rated for continuous duty at the site ambient temperature. No cooler ships in the tray, and retention follows the 78 mm LGA 1700 pattern covered by the CPU cooler compatibility by socket guide. Because boost excursions exceed base power briefly, the thermal design should target sustained all core draw rather than the label wattage alone.
Upgrade paths
Within validated industrial boards the upgrade ladder is the Bartlett Lake family itself. A 273PE installation can move up to the 125 W twelve core for higher sustained clocks or down to the 45 W twelve core for tighter enclosures, as long as power delivery, cooling and the support list allow. Ten and eight core siblings offer cheaper steps when thread count exceeds demand.
Consumer desktop processors share the socket but not the platform. The Intel Core i5-14400 runs on retail 600 and 700 series boards after the appropriate BIOS, while the 273PE runs only on industrial boards, and neither boots where the other belongs. Do not plan a mixed migration between the two lines.
If the system must leave LGA 1700 behind, the next step is a current embedded platform with its own board and memory, identified with the How to find your CPU socket type guide. Industrial availability windows are long, so most 273PE deployments will simply run their course before any platform change.
Frequently asked questions
What socket does the Intel Core 9 273PE use?
It uses LGA 1700, marked FCLGA1700 in Intel documents. Only industrial boards with firmware support start with it.
Can I install the 273PE in my B760 gaming board?
No. ASRock confirmed its consumer LGA 1700 boards, Z790 included, will not receive Bartlett Lake BIOS support. The chip fits the socket physically but the board will not start without the matching firmware.
What is the difference between the 273PE and the 273PTE?
The 273PE runs a 2.3 GHz base at 65 W against 1.4 GHz at 45 W on the 273PTE, with peak boost close on both. Intel lists the same $549 tray price for the pair, so cooling capacity decides between them.
What memory does the 273PE support?
Boards carry DDR5 slots rated to 5600 MT/s or DDR4 slots rated to 3200 MT/s, two channels to 192 GB with ECC. The slot type is fixed per board, so memory must match the board ordered.
Sources and verification
- Intel Core 9 processor 273PE specifications (Intel)
- Intel keeps socket LGA 1700 alive with new P-core-only Bartlett Lake CPUs (Tom's Hardware)
- Bartlett Lake, Intel's P-Core Only CPUs: Models and Specs (HWCooling)
- Intel Bartlett Lake-S Will Not Be Supported on LGA 1700 Motherboards (eTeknix)
Facts last checked against these sources on . Page last edited on .