Intel Xeon W-2123 socket: LGA 2066

What the Xeon W-2123 is

The Xeon W-2123 is a four core, eight thread workstation processor from Skylake-W. It launched in August 2017 with a 3.6 GHz base and up to 3.9 GHz Turbo at 120 W. Four cores at high clocks cover CAD towers where interaction speed matters more than thread count.

Eight point two five megabytes of L3 cache feed four cores with low latency. The 3.6 GHz base leads workstation quad cores for responsive modeling, while 3.9 GHz boost lifts single thread peaks. One hundred twenty watts suit single socket towers.

No integrated graphics ship. Quad channel DDR4-2666 ECC up to 512 GB suits assemblies with error cover. Forty eight PCIe lanes allow workstation GPUs plus fast storage.

Intel aimed the W-2123 at entry workstations above dual core relics. Engineers who model all day benefit from 3.6 GHz more than from extra cores. Locked multiplier keeps fleets consistent.

Socket and motherboard compatibility

The W-2123 fits LGA 2066 on C422 boards. X299 HEDT boards lack ECC workstation features. Check the C422 list for stepping.

Four channels and 48 lanes shape tower designs with professional GPUs. The Socket vs chipset: what decides whether a CPU works guide covers C422 planning.

The Xeon W-2125 on the same socket adds clocks. The W-2104 trims threads where cost matters.

Memory, PCIe and cooling

DDR4-2666 ECC in four channels up to 512 GB is the design. Matched quartets hold quad channel bandwidth. ECC corrects errors in long sessions.

Forty eight PCIe lanes feed GPUs and NVMe arrays. Towers split lanes between graphics and scratch SSDs.

One hundred twenty watts cool with workstation air. Sustained clocks need steady airflow.

Upgrade paths

On C422 the move is W-2133 for more cores or W-2125 for clocks, reusing board and DDR4.

Past LGA 2066 a new workstation platform is required.