Intel Xeon Gold 6348H socket: LGA 4189
The Intel Xeon Gold 6348H uses the LGA 4189 socket. It is a 165 W 24-core Cooper Lake-SP server processor for 4-socket systems, with ECC memory support.
- Socket
- LGA 4189
- Launched
- June 2020
- Cores and threads
- 24 and 48
- Base power
- 165 W
- Codename
- Cooper Lake-SP
- Segment
- Server
- Family
- Intel Xeon Gold
- Clocks
- 2.3 / 4.2 GHz
Intel Xeon Gold 6348H specifications
| Cores | 24 |
|---|---|
| Threads | 48 |
| Core architecture | Skylake-SP (Cooper Lake-SP) |
| Clocks | 2.3 GHz base, up to 4.2 GHz turbo |
| Cache | 33 MB Intel Smart Cache (L3) |
| Processor base power (TDP) | 165 W |
| Manufacturing process | 14 nm |
| Memory support | DDR4 up to 2933 MT/s ECC, 6 channels, up to 1.12 TB per socket |
| PCI Express | 48 PCIe 3.0 lanes per socket |
| Interconnect | 6× UPI at 10.4 GT/s |
| ECC memory | Yes |
| Package | FCLGA4189, 77.5 × 56.5 mm |
| Sockets supported | Up to 4 sockets |
Motherboard compatibility
Intel Xeon Gold 6348H 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 6348H is
The Xeon Gold 6348H is a 24-core server processor that Intel released in June 2020 at the top of the Cooper Lake-SP Gold H range for 4-socket systems. Its Skylake-SP cores run 2.3 GHz base to 4.2 GHz turbo with Hyper-Threading for 48 threads. Cache is 33 MB of Intel Smart Cache with 1 MB of L2 per core.
The chip pairs the highest Gold H core count with a strong 4.2 GHz burst for mixed virtual and database work. The 2.3 GHz base keeps 165 W in check across four sockets. The 14 nm process carries bfloat16 instructions for inference work through Deep Learning Boost.
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 6348H fits the LGA 4189 socket on Cedar Island boards for Cooper Lake. Whitley boards for Ice Lake-SP share the socket name but do not accept this chip, so the board generation must match the processor generation. The server vendor CPU support list names the exact boards for H suffix parts.
Four-socket operation is the design point for Xeon Gold H parts, with smaller configurations possible where the vendor qualifies them. A buyer consolidating hosts should confirm per-socket licensing before choosing 24 cores over fewer faster ones.
Check memory population rules for 4-socket boards when ordering. Twelve DIMMs per socket is the platform shape, and all sockets should match in capacity and speed.
Memory, PCIe and cooling
The memory controller supports DDR4 up to 2933 MT/s in 6 channels, up to 1.12 TB per socket, with ECC support. Dense hosts use RDIMM pairs across all channels for bandwidth with integrity. Optane persistent memory is a board option on qualifying platforms.
The CPU supplies 48 PCIe 3.0 lanes per socket for network cards and NVMe storage. Four-socket boards split lanes across slots and onboard controllers, so the board specifications state which slots reach full speed. Six UPI links at 10.4 GT/s carry socket to socket traffic.
At 165 W, vendor-qualified performance air 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 6330H, the 6348H adds clocks and power in the same 24-core layout. The 150 W part suits dense nodes at lower heat, while this 165 W part suits hosts that hold higher sustained speed. Both share Cedar Island boards and DDR4-2933 limits.
Moving to LGA 4677 needs new boards and DDR5 memory for Sapphire Rapids generations. The 6348H fits a top 4-socket Gold cluster, a dense virtual farm, or an analytics tier with heavy threads.
For used buyers, the top Gold H part makes sense when thread density leads. When single thread bursts matter more, the 16-core 6328H class gives higher bases on the same platform.
Frequently asked questions
What socket does the Intel Xeon Gold 6348H use?
It uses LGA 4189 on Cedar Island boards for Cooper Lake. Whitley Ice Lake boards share the socket name but do not accept it.
How many cores does the Intel Xeon Gold 6348H have?
24 cores with 48 threads, 2.3 GHz base and up to 4.2 GHz turbo, with 33 MB of Intel Smart Cache.
What memory does the Intel Xeon Gold 6348H support?
DDR4 up to 2933 MT/s with ECC in 6 channels, up to 1.12 TB per socket.
What graphics does the Intel Xeon Gold 6348H include?
None on the chip. Setup relies on board BMC graphics.
What is the TDP of the Intel Xeon Gold 6348H?
165 W. Performance air heatsinks with strong directed chassis airflow are needed.
Sources and verification
- Cooper Lake (Wikipedia, Xeon Gold H list, 4S, DDR4, bfloat16)
- Intel Xeon Gold 6348H Processor (Intel ARK)
Facts last checked against these sources on . Page last edited on .