Intel Xeon 6766E socket: LGA 4710
The Intel Xeon 6766E uses LGA 4710, the LGA server socket for Sierra Forest Xeon 6 with DDR5 memory and PCIe Gen5 lanes. The 144-core E-only chip at 250 W suits dense cloud boards.
- Socket
- LGA 4710
- Launched
- June 2024
- Cores and threads
- 144 and 144
- Base power
- 250 W
- Codename
- Sierra Forest
- Segment
- Server
- Family
- Intel Xeon 6700E
- Clocks
- 1.9 / 2.7 GHz
Intel Xeon 6766E specifications
| Cores | 144 |
|---|---|
| Threads | 144 (no Hyper-Threading) |
| Core architecture | Sierra Glen (E-cores only) |
| Clocks | 1.9 GHz base, up to 2.7 GHz boost |
| Cache | 108 MB |
| Processor base power (TDP) | 250 W |
| Manufacturing process | Intel 3 |
| Memory support | DDR5 with ECC, 8 channels |
| PCI Express | PCIe 5.0 |
| Integrated graphics | None |
| Multiplier | Locked |
| ECC memory | Yes |
| Package | FCLGA4710 |
Motherboard compatibility
Intel Xeon 6766E needs a motherboard with a LGA 4710 socket. Chipset by chipset data for this codename is not recorded yet. See the LGA 4710 chipset list and the board maker's CPU support list.
LGA 4710 at a glance
| Type | LGA, 4,710 contacts |
|---|---|
| Package size | n/a |
| Introduced | June 2024 |
| Memory | DDR5, 8 channels |
| Cooler mounting holes | Board specific (server heatsink) |
What the Xeon 6766E is
The Xeon 6766E is a 144-core and 144-thread server processor that launched in June 2024 for Xeon 6 dense clouds near the top of E-core count. One hundred forty-four Sierra Glen Efficient-cores without Hyper-Threading give 144 threads at 1.9 GHz base and up to 2.7 GHz boost. Cache is 108 MB. Processor base power is 250 W, which fits Birch Stream SP boards with server air cooling.
One hundred forty-four E-cores keep the largest microservice fleets in one socket. DDR5 with ECC feeds the die from board memory. PCIe Gen5 lanes serve NVMe and networking, with UPI for dual-socket nodes. The 108 MB cache tops 96 MB siblings for larger working sets.
Maximum-density web tiers fit here. Thread count per socket reduces node sprawl. Buyers who need higher clocks for response should take lower-count E parts with 2.4 GHz base instead, since this 6766E prioritizes threads over speed.
Socket and motherboard compatibility
The 6766E fits LGA 4710 on Birch Stream SP boards with 250 W delivery. A BIOS that lists Sierra Forest is required. The FCLGA4710 package uses a server carrier.
Memory is DDR5 with ECC in 8 channels. Population follows 1 DIMM per channel at top speed. Power tuning is available where enabled.
E shoppers compare 144-core parts on base and power. The 6766E trails the 330 W 6780E on clocks. The Socket vs chipset: what decides whether a CPU works guide covers server lists.
Memory, PCIe and cooling
DDR5 with ECC in 8 channels is the standard. Huge connection counts should be sized with bandwidth in mind. Matched sets are preferred.
PCIe Gen5 lanes serve storage and networking. Fixed splits require manual checks.
Cooling is server 250 W with vendor-qualified air. No retail cooler applies.
Upgrade paths
LGA allows moves within the vendor list, such as to the 330 W 144-core flagship. Memory and NVMe can also grow.
A working 6766E serves dense tiers for years.
Frequently asked questions
What socket does the Xeon 6766E use?
It uses LGA 4710 on Birch Stream SP boards. A BIOS that lists Sierra Forest is required.
How many cores does the Xeon 6766E have?
One hundred forty-four cores and 144 threads at 1.9 GHz base and up to 2.7 GHz boost, with 108 MB of cache at 250 W.
What memory does the 6766E support?
DDR5 with ECC in 8 channels.
Can the 6766E be upgraded?
Yes, to other E parts including the 330 W flagship where power, cooling and BIOS allow.
Sources and verification
- Intel Xeon 6980P Newegg table 6766E 144 cores 250W pattern (Newegg)
- Intel Xeon 6980P Granite Rapids specs server pattern (Intel ARK)
Facts last checked against these sources on . Page last edited on .