Intel Xeon Gold 6348 socket: LGA 4189
The Intel Xeon Gold 6348 uses the LGA 4189 socket. It is a 235 W 28-core Ice Lake-SP server processor with ECC memory support.
- Socket
- LGA 4189
- Launched
- April 2021
- Cores and threads
- 28 and 56
- Base power
- 235 W
- Codename
- Ice Lake-SP
- Segment
- Server
- Family
- Intel Xeon Gold
- Clocks
- 2.6 / 3.5 GHz
Intel Xeon Gold 6348 specifications
| Cores | 28 |
|---|---|
| Threads | 56 |
| Core architecture | Sunny Cove (Ice Lake-SP) |
| Clocks | 2.6 GHz base, up to 3.5 GHz turbo |
| Cache | 42 MB |
| Processor base power (TDP) | 235 W |
| Manufacturing process | 10 nm |
| Memory support | DDR4 up to 3200 MT/s ECC, 8 channels, up to 4 TB per socket |
| PCI Express | 64 PCIe 4.0 lanes per socket |
| Interconnect | 3× UPI at 11.2 GT/s |
| ECC memory | Yes |
| Package | FCLGA4189, 77.5 × 56.5 mm |
| Sockets supported | Up to 2 sockets |
Motherboard compatibility
Intel Xeon Gold 6348 needs a motherboard with a LGA 4189 socket. Chipset by chipset data for this codename is not recorded yet. See the LGA 4189 chipset list and the board maker's CPU support list.
LGA 4189 at a glance
| Type | LGA, 4,189 contacts |
|---|---|
| Package size | 77.5 × 56.5 mm |
| Introduced | April 2020 |
| Memory | DDR4 with ECC, up to 8 channels on Ice Lake-SP and 6 channels on Cooper Lake-SP |
| Cooler mounting holes | Board specific (server heatsink) |
What the Xeon Gold 6348 is
The Xeon Gold 6348 is a 28-core server processor that Intel released in April 2021 with the Ice Lake-SP range for 2-socket systems. Its Sunny Cove cores run 2.6 GHz base to 3.5 GHz turbo with Hyper-Threading for 56 threads. Cache is 42 MB with 1.25 MB of L2 per core.
The chip pairs high core count with a solid 2.6 GHz base at 235 W for dense virtual hosts. The 3.5 GHz burst helps single thread tasks that stall on slower cores. The 10 nm process pairs 8 channels of DDR4-3200 with 64 PCIe 4.0 lanes.
There is no integrated graphics on this model, so setup relies on board BMC graphics. ECC memory support guards data across long uptime. The socket package is FCLGA4189 at 77.5 × 56.5 mm.
Socket and motherboard compatibility
The 6348 fits the LGA 4189 socket on Whitley boards for Ice Lake-SP. Cedar Island boards for Cooper Lake share the socket name but do not accept this chip, and the Cooper 6348H twin is a different 24-core part, so confirm the model without suffix before ordering. The server vendor CPU support list names the exact boards for Gold parts.
Two-socket operation is the design point for Xeon Gold dual processor parts, with single socket boards possible where the vendor qualifies them. A buyer building dense 2-socket nodes should confirm power delivery for 235 W parts before ordering.
Check memory population rules for 2-socket boards when ordering. Sixteen DIMM slots per socket is the platform shape, and both sockets should match in capacity and speed.
Memory, PCIe and cooling
The memory controller supports DDR4 up to 3200 MT/s in 8 channels, up to 4 TB per socket, with ECC support. Dense nodes use RDIMM pairs across all channels for bandwidth with integrity. The controller does not accept DDR5.
The CPU supplies 64 PCIe 4.0 lanes per socket for network cards and NVMe storage. Two-socket boards split lanes across slots and onboard controllers, so the board specifications state which slots reach full speed. Three UPI links at 11.2 GT/s carry socket to socket traffic.
At 235 W, vendor-qualified performance air or liquid heatsinks with strong directed chassis airflow are needed. Mounting is board specific with no retail pattern, and the CPU cooler compatibility by socket guide explains why server sockets list no desktop bracket.
Upgrade paths
Against the Intel Xeon Gold 6330, the 6348 adds clocks and cache at higher power with the same 28 cores. The 205 W part suits dense racks, while this 235 W part suits hosts that hold higher sustained speed. Both share Whitley boards and 42 MB of cache.
Moving to LGA 4677 needs new boards and DDR5 memory for Sapphire Rapids generations. The 6348 fits a dense virtual farm, a scale out database tier, or a cloud node with many guests.
For used buyers, the top 28-core Gold makes sense when thread density leads. Note the Cooper twin Intel Xeon Gold 6348H is a different 24-core chip on Cedar Island boards, so match the platform before buying used.
Frequently asked questions
What socket does the Intel Xeon Gold 6348 use?
It uses LGA 4189 on Whitley boards for Ice Lake-SP. The Cooper 6348H twin is a different 24-core chip for Cedar Island boards.
How many cores does the Intel Xeon Gold 6348 have?
28 cores with 56 threads, 2.6 GHz base and up to 3.5 GHz turbo, with 42 MB of cache.
What memory does the Intel Xeon Gold 6348 support?
DDR4 up to 3200 MT/s with ECC in 8 channels, up to 4 TB per socket.
What graphics does the Intel Xeon Gold 6348 include?
None on the chip. Setup relies on board BMC graphics.
What is the TDP of the Intel Xeon Gold 6348?
235 W. Performance air or liquid heatsinks with strong directed chassis airflow are needed.
Sources and verification
- List of Intel Xeon processors Ice Lake-based (Gold 6348 2.6 to 3.5 GHz, 235 W)
- Intel Xeon Gold 6348 Processor (Intel ARK)
Facts last checked against these sources on . Page last edited on .