Intel Xeon Platinum 8376HL socket: LGA 4189
The Intel Xeon Platinum 8376HL uses the LGA 4189 socket. It is a 205 W 28-core Cooper Lake-SP server processor with the large 4.5 TB memory tier for 8-socket systems.
- Socket
- LGA 4189
- Launched
- June 2020
- Cores and threads
- 28 and 56
- Base power
- 205 W
- Codename
- Cooper Lake-SP
- Segment
- Server
- Family
- Intel Xeon Platinum
- Clocks
- 2.6 / 4.3 GHz
Intel Xeon Platinum 8376HL specifications
| Cores | 28 |
|---|---|
| Threads | 56 |
| Core architecture | Skylake-SP (Cooper Lake-SP) |
| Clocks | 2.6 GHz base, up to 4.3 GHz turbo |
| Cache | 38.5 MB Intel Smart Cache (L3) |
| Processor base power (TDP) | 205 W |
| Manufacturing process | 14 nm |
| Memory support | DDR4 up to 3200 MT/s ECC, 6 channels, up to 4.5 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 8 sockets |
Motherboard compatibility
Intel Xeon Platinum 8376HL 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 Platinum 8376HL is
The Xeon Platinum 8376HL is a 28-core server processor that Intel released in June 2020 with the Cooper Lake-SP range for 8-socket systems. Its Skylake-SP cores run 2.6 GHz base to 4.3 GHz turbo with Hyper-Threading for 56 threads. Cache is 38.5 MB of Intel Smart Cache with 1 MB of L2 per core.
The HL suffix unlocks the large DDR memory tier up to 4.5 TB per socket, against 1.12 TB on the plain H twin. The clocks, cache and power match the Intel Xeon Platinum 8376H exactly, so the suffix buys memory headroom rather than speed. 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 8376HL 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 HL suffix parts.
Eight-socket operation is the design point for Xeon Platinum HL parts, since large memory tiers span sockets. A buyer planning an in-memory database should confirm the board supports the 4.5 TB tier with the needed DIMM and Optane mix before ordering.
Check memory population rules for large tier boards when ordering. Twelve DIMMs per socket is the platform shape, and the large tier needs the vendor qualified DIMM and persistent memory mix.
Memory, PCIe and cooling
The memory controller supports DDR4 up to 3200 MT/s in 6 channels with ECC support, reaching the 4.5 TB tier per socket with the qualified mix. In-memory database nodes use the large tier to hold whole data sets beside the cores. 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. Multi-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 205 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 Platinum 8376H, the 8376HL adds only the large memory tier with identical clocks. The plain H part suits nodes under 1.12 TB per socket at lower cost, while this HL part suits databases that must hold terabytes beside the cores. Both share Cedar Island boards.
Moving to LGA 4677 needs new boards and DDR5 memory for Sapphire Rapids generations. The 8376HL fits an 8-socket in-memory database, a large SAP tier, or an analytics node with huge working sets.
For used buyers, the HL part makes sense only when the workload fills the large tier. When memory stays small, the plain H twin gives the same speed for less on the same platform.
Frequently asked questions
What socket does the Intel Xeon Platinum 8376HL 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 Platinum 8376HL have?
28 cores with 56 threads, 2.6 GHz base and up to 4.3 GHz turbo, with 38.5 MB of Intel Smart Cache.
What memory does the Intel Xeon Platinum 8376HL support?
DDR4 up to 3200 MT/s with ECC in 6 channels, up to 4.5 TB per socket with the qualified mix.
What is the difference between the 8376HL and the 8376H?
The HL unlocks the 4.5 TB large memory tier per socket. The plain H twin holds the same clocks with up to 1.12 TB.
What is the TDP of the Intel Xeon Platinum 8376HL?
205 W. Performance air or liquid heatsinks with strong directed chassis airflow are needed.
Sources and verification
- Cooper Lake (Wikipedia, Xeon Platinum HL list, 4.5 TB tier, 8S)
- Intel Xeon Platinum 8376HL Processor (Intel ARK)
Facts last checked against these sources on . Page last edited on .