Intel Xeon 678X socket: LGA 4710
The Intel Xeon 678X uses the LGA 4710 socket. It is a 48 core Granite Rapids workstation server processor for single socket boards with 8 channel DDR5 memory and PCI Express 5.0.
- Socket
- LGA 4710
- Launched
- February 2026
- Cores and threads
- 48 and 96
- Base power
- 300 W
- Codename
- Granite Rapids
- Segment
- Server
- Family
- Intel Xeon
- Clocks
- 2.4 / 4.9 GHz
Intel Xeon 678X specifications
| Cores | 48 (all Performance-cores) |
|---|---|
| Threads | 96 (with Hyper-Threading) |
| Clocks | 2.4 GHz base, up to 4.9 GHz boost (4.7 GHz Turbo Boost 2.0) |
| Cache | 192 MB |
| Processor base power (TDP) | 300 W |
| Maximum turbo power | 360 W |
| Manufacturing process | Intel 3 |
| Memory support | DDR5 up to 6400 MT/s and MRDIMM up to 8000 MT/s, 8 channels, up to 4 TB |
| PCI Express | PCIe 5.0, up to 128 lanes |
| Integrated graphics | None |
| ECC memory | Yes |
| Package | FCLGA4710 (77.5 × 56.5 mm) |
| Scalability | 1S (single socket only) |
| Launch price | $4129 to $4139 (Intel RCP at launch) |
Motherboard compatibility
Intel Xeon 678X 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 678X is
The Xeon 678X is a 48 core workstation server processor from the Xeon 6 family under the codename Granite Rapids. It carries 48 Performance-cores for 48 cores and, with Hyper-Threading, 96 threads. The base frequency is 2.4 GHz with maximum turbo to 4.9 GHz through Turbo Boost Max 3.0 and 4.7 GHz through Turbo Boost 2.0. The last level cache totals 192 MB with 2 MB of L2 per core. Intel builds the part for single socket workstations and servers that need high thread count in one chassis.
Intel rates the processor base power at 300 W with maximum turbo power at 360 W. The part uses Intel 3. Memory support covers DDR5 up to 6400 MT/s and MRDIMM up to 8000 MT/s in 8 channels up to 4 TB with ECC. Expansion provides PCI Express 5.0 with up to 128 lanes. Scalability is 1S, so the chip runs alone with no UPI links.
The processor launched in the first quarter of 2026 with tray price from 4129 dollars to 4139 dollars Intel recommended customer price. February 2, 2026 is the listed release date in the CPU database. There is no integrated graphics, so display or compute acceleration needs a discrete device. The package uses FCLGA4710 with carrier E2B and measures 77.5 × 56.5 mm.
Socket and motherboard compatibility
The Xeon 678X fits the LGA 4710 socket. The land grid array has 4,710 contacts and supports Granite Rapids parts on single socket workstation and server boards. Compatibility follows the board vendor CPU support list for each model and BIOS revision.
The socket file lists no desktop chipset groups, so there is no retail chipset pick. Board firmware, memory population rules, and power limits come from the system vendor. Buyers should confirm the 678X on the vendor list with the planned heatsink and 300 W thermal class before ordering.
Heatsink choice follows the board vendor list for 300 W parts. The CPU cooler compatibility by socket explains why server sockets use board specific heatsinks rather than retail mounting patterns. High airflow air coolers and liquid loops are qualified per chassis for continuous load.
Memory, PCIe and cooling
The memory controller supports DDR5 up to 6400 MT/s and MRDIMM up to 8000 MT/s with 8 channels and up to 4 TB per socket. ECC is supported. MCR DIMM speed reaches 8000 MT/s in tested layouts, while 2 DIMMs per channel run at 5200 MT/s. Vendors publish population guides for full capacity at the target rate.
For I/O the chip provides PCI Express 5.0 with up to 128 lanes for graphics, network, NVMe storage, and accelerators. CXL 2.0 shares the PCIe lanes for memory expansion with Type 3 devices. The platform also carries DMI 4.0 to the board controller for management and onboard devices.
Power and cooling center on 300 W base with 360 W maximum turbo. Maximum case temperature is 82 degrees C with 98 degrees C maximum junction from the digital sensor. There is no boxed cooler. System integrators size heatsinks and fans for continuous load at the inlet temperature of each workstation or rack, and firmware sets sustained and burst limits.
Upgrade paths
Within LGA 4710 the path stays on the same board with memory and I/O growth first. Adding DDR5 or MRDIMM capacity, faster network, or more NVMe storage uses the 8 channels and 128 PCIe 5.0 lanes before a CPU change is needed. Firmware updates keep the board ready for other Granite Rapids parts where power allows.
A move to a higher core count on the same socket changes thermal class and license cost. The 48 core 678X already sits near the top of the single socket range, so a further step often means a dual socket platform on the same socket family. The vendor list shows which boards accept higher power parts.
A platform change to another socket needs a new board and new memory population. Socket, heatsink, and firmware stay with the old system. Buyers moving from a desktop socket such as LGA 1851 should plan for workstation chassis, robust power, and ECC memory rather than desktop parts.
Frequently asked questions
What socket does the Intel Xeon 678X use?
The Intel Xeon 678X uses LGA 4710. It fits single socket workstation and server boards for Granite Rapids parts. Always confirm the part on the board vendor CPU support list.
What memory does the Xeon 678X support?
DDR5 up to 6400 MT/s and MRDIMM up to 8000 MT/s in 8 channels up to 4 TB with ECC. Final speed follows the DIMM type and population per channel, so check the vendor memory guide for the planned capacity.
How many PCIe lanes does the Xeon 678X provide?
Up to 128 lanes of PCI Express 5.0 for graphics, network, NVMe storage, and accelerators. CXL 2.0 shares the lanes for memory expansion.
Can two Xeon 678X processors work together?
No. Scalability is 1S with no UPI links. The chip runs alone, and a dual socket system needs a different part from the scalable line.
Sources and verification
- Intel Xeon 678X Processor specifications (Intel ARK)
- Intel Xeon 678X Specs (TechPowerUp CPU Database)
Facts last checked against these sources on . Page last edited on .