Intel Xeon Platinum 8358P socket: LGA 4189
The Intel Xeon Platinum 8358P uses the LGA 4189 socket. It is a 240 W 32-core Ice Lake-SP server processor for cloud roles, with ECC memory support.
- Socket
- LGA 4189
- Launched
- April 2021
- Cores and threads
- 32 and 64
- Base power
- 240 W
- Codename
- Ice Lake-SP
- Segment
- Server
- Family
- Intel Xeon Platinum
- Clocks
- 2.6 / 3.4 GHz
Intel Xeon Platinum 8358P specifications
| Cores | 32 |
|---|---|
| Threads | 64 |
| Core architecture | Sunny Cove (Ice Lake-SP) |
| Clocks | 2.6 GHz base, up to 3.4 GHz turbo |
| Cache | 48 MB |
| Processor base power (TDP) | 240 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 Platinum 8358P 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 8358P is
The Xeon Platinum 8358P is a 32-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 3.4 GHz turbo with Hyper-Threading for 64 threads. Cache is 48 MB with 1.25 MB of L2 per core.
The P suffix marks IaaS cloud specialization for dense infrastructure roles that spread across many cores. The high 2.6 GHz base keeps all core work fast for hosts that run at full load. 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 8358P 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, so the board generation must match the processor generation. The server vendor CPU support list names the exact boards for P suffix parts.
Two-socket operation is possible with Xeon Platinum dual processor parts, with single socket boards possible where the vendor qualifies them. A buyer running IaaS roles should confirm the board virtualization slot layout matches the tenant workload 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. Cloud hosts 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 240 W, vendor-qualified liquid or top 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 Platinum 8352S, the 8358P adds cloud tuning with the same 32 cores. The S part suits confidential roles with SGX needs, while this P part suits IaaS roles with the same cache. Both share Whitley boards and DDR4-3200 limits.
Moving to LGA 4677 needs new boards and DDR5 memory for Sapphire Rapids generations. The 8358P fits an IaaS node, a dense virtual farm, or a cloud tier with many tenants.
For used buyers, the P part makes sense when cloud features matter. When security enclaves matter, the S twin class gives SGX support on the same board.
Frequently asked questions
What socket does the Intel Xeon Platinum 8358P use?
It uses LGA 4189 on Whitley boards for Ice Lake-SP. Cedar Island Cooper boards share the socket name but do not accept it.
How many cores does the Intel Xeon Platinum 8358P have?
32 cores with 64 threads, 2.6 GHz base and up to 3.4 GHz turbo, with 48 MB of cache.
What memory does the Intel Xeon Platinum 8358P support?
DDR4 up to 3200 MT/s with ECC in 8 channels, up to 4 TB per socket.
What does the P suffix mean on the Xeon Platinum 8358P?
The P marks IaaS cloud specialization for dense infrastructure roles across many cores.
What is the TDP of the Intel Xeon Platinum 8358P?
240 W. Liquid or top performance air heatsinks with strong directed chassis airflow are needed.
Sources and verification
- List of Intel Xeon processors Ice Lake-based (Platinum 8358P 2.6 to 3.4 GHz, 240 W)
- Intel Xeon Platinum 8358P Processor (Intel ARK)
Facts last checked against these sources on . Page last edited on .