Intel Xeon W-3345 socket: LGA 4189
The Intel Xeon W-3345 uses the LGA 4189 socket. It is a 250 W 24-core Ice Lake-W workstation processor with ECC memory support.
- Socket
- LGA 4189
- Launched
- July 2021
- Cores and threads
- 24 and 48
- Base power
- 250 W
- Codename
- Ice Lake-W
- Segment
- Workstation
- Family
- Intel Xeon W
- Clocks
- 3.0 / 4.0 GHz
Intel Xeon W-3345 specifications
| Cores | 24 |
|---|---|
| Threads | 48 |
| Core architecture | Sunny Cove (Ice Lake-W) |
| Clocks | 3.0 GHz base, up to 4.0 GHz turbo |
| Cache | 36 MB |
| Processor base power (TDP) | 250 W |
| Manufacturing process | 10 nm |
| Memory support | DDR4 up to 3200 MT/s ECC, 8 channels, up to 4 TB |
| PCI Express | 64 PCIe 4.0 lanes per socket |
| ECC memory | Yes |
| Package | FCLGA4189, 77.5 × 56.5 mm |
| Sockets supported | 1P only |
Motherboard compatibility
Intel Xeon W-3345 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 W-3345 is
The Xeon W-3345 is a 24-core workstation processor that Intel released in the third quarter of 2021 with the Xeon W-3300 range for single-socket stations. Its Sunny Cove cores run 3.0 GHz base to 4.0 GHz turbo with Hyper-Threading for 48 threads. Cache is 36 MB with 1.25 MB of L2 per core.
The chip balances 24 cores with a solid 3.0 GHz base at 250 W for stations that render and simulate beside interactive work. The 10 nm process pairs 8 channels of DDR4 with 64 PCIe 4.0 lanes for GPUs and fast storage. Single socket operation keeps board cost below multi-socket server platforms.
There is no integrated graphics on this model, so setup needs a professional graphics card. ECC memory support guards models in long sessions. The socket package is FCLGA4189 at 77.5 × 56.5 mm.
Socket and motherboard compatibility
The W-3345 fits the LGA 4189 socket on Whitley workstation boards for Ice Lake-W. 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 workstation vendor CPU support list names the exact boards for W-3300 parts.
Single socket operation is the only option, with no UPI links on the die. A buyer who needs dense workstation threads without multi-socket cost chooses this platform over server boards. Confirm the board supports the 250 W envelope before ordering.
Check memory population for 8-channel boards when ordering. Sixteen DIMM slots is the platform shape, and populating all channels feeds both cores and professional GPUs.
Memory, PCIe and cooling
The memory controller supports DDR4 up to 3200 MT/s in 8 channels, up to 4 TB, with ECC support. Heavy stations often fill all channels with matched ECC DIMMs for bandwidth with integrity. The controller does not accept DDR5.
The CPU supplies 64 PCIe 4.0 lanes for professional graphics and NVMe storage. Workstations split lanes across graphics slots and fast drives, so the board specifications state which slots reach full speed. Multiple GPUs and drive arrays fit without lane sharing pressure.
At 250 W, a workstation tower cooler with strong directed airflow or liquid cooling is 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 W-3335, the W-3345 adds cores at the same power in the same stack. The 16-core part suits interactive work at higher clocks, while this 24-core part suits mixed rendering with more threads. Both share Whitley boards and DDR4-3200 limits.
Moving to LGA 4677 needs new boards and DDR5 memory for Sapphire Rapids workstation generations. The W-3345 fits a heavy professional station, a simulation host, or a render node with ECC needs.
For used buyers, the 24-core W makes sense when thread density leads. When clocks matter most, the lower core W parts hold higher bases on the same board.
Frequently asked questions
What socket does the Intel Xeon W-3345 use?
It uses LGA 4189 on Whitley workstation boards for Ice Lake-W. Cedar Island Cooper boards share the socket name but do not accept it.
How many cores does the Intel Xeon W-3345 have?
24 cores with 48 threads, 3.0 GHz base and up to 4.0 GHz turbo, with 36 MB of cache.
What memory does the Intel Xeon W-3345 support?
DDR4 up to 3200 MT/s with ECC in 8 channels, up to 4 TB.
What graphics does the Intel Xeon W-3345 include?
None on the chip. Setup needs a professional graphics card.
What is the TDP of the Intel Xeon W-3345?
250 W. Strong workstation cooling with directed airflow or liquid is needed.
Sources and verification
- List of Intel Xeon processors Ice Lake-based (W-3345 3.0 to 4.0 GHz, 250 W)
- Intel Xeon W-3323 specifications (Intel, same W-3300 family platform data)
Facts last checked against these sources on . Page last edited on .