Intel Xeon W-2195 socket: LGA 2066

What the Xeon W-2195 is

The Xeon W-2195 is an eighteen core, thirty six thread workstation processor from Skylake-W. It launched in August 2017 with a 2.3 GHz base and up to 4.3 GHz Turbo at 140 W. Eighteen cores cover top single socket workstations where maximum threads matter.

Twenty four point seven five megabytes of L3 cache feed eighteen cores. The low 2.3 GHz base reflects the high core count in 140 W, while 4.3 GHz boost keeps interactive work usable. All core loads settle near 3.2 GHz for thermals.

No integrated graphics ship. Quad channel DDR4-2666 ECC up to 512 GB suits huge assemblies. Forty eight PCIe lanes allow multi GPU towers.

Intel priced the W-2195 at $2553 at launch as a top workstation SKU. Studios that needed maximum single socket threads chose it before later generations. Locked multiplier keeps fleets stable.

Socket and motherboard compatibility

The W-2195 fits LGA 2066 on C422 workstation boards. Check the board CPU list for 18 core support and power delivery. Single socket towers scale to 18 cores per box.

Four memory channels and 48 lanes shape high end tower designs. Workstation GPUs take primary slots. The Socket vs chipset: what decides whether a CPU works guide covers C422 planning.

The Xeon W-2175 on the same socket trims four cores where cost matters. The W-2191B is the Mac Pro OEM counterpart without TXT.

Memory, PCIe and cooling

DDR4-2666 ECC in four channels up to 512 GB is the design. Eight DIMM boards add capacity. ECC protects long renders.

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

One hundred forty watts need workstation tower air or liquid. High airflow sustains all core loads.

Upgrade paths

On C422 there is no higher Skylake-W above the W-2195, so growth means Cascade Lake-W on the same socket where BIOS allows it, or a new platform.

Most owners add memory and GPUs before new CPUs.