Intel Xeon 6357P socket: LGA 1700

What the Xeon 6357P is

The Intel Xeon 6357P is the balanced 8-core member of the Xeon 6 6300P Raptor Lake server stack on Socket LGA 1700. It runs 8 Performance-cores with Hyper-Threading for 16 threads at 3.0 GHz base with boost to 5.4 GHz, backed by 24 MB of cache and an 80 W TDP. Intel launched the 6300P range in the first quarter of 2025, built on Intel 7 for single-socket entry servers.

Eight cores at 80 W suit virtualization hosts, backup servers, content platforms and branch consolidation boxes where thread count and thermals must balance. The 3.0 GHz base keeps sustained work moving under midrange cooling, while bursts to 5.4 GHz clear interactive spikes. The 24 MB cache pool keeps virtual machine working sets near the cores.

Against the 8-core Intel Xeon 6353P below it, the 6357P adds base frequency at a higher 80 W class. Against the 8-core Intel Xeon 6369P above it, the 6357P trades clocks for a lower power envelope. ECC memory and 1S server firmware separate it from desktop Core parts. See Socket vs chipset: what decides whether a CPU works for why chipset series plus BIOS revision together decide board fit.

Socket and motherboard compatibility

The 6357P fits LGA 1700 in the FCLGA1700 package, the same socket as Alder Lake, Raptor Lake and Raptor Lake Refresh desktops. Server boards with workstation chipsets that list Xeon 6300P support take the 6357P, while desktop boards stay outside the validated list. Because board vendors qualify power classes individually, the 6357P must appear by name on the support list rather than being assumed from socket fit.

Memory is DDR5-4800 ECC in two channels up to 128 GB. Unlike desktop Raptor Lake boards, server LGA 1700 boards validate ECC operation, so business data stays protected. A move from any other socket is a full platform change with board, memory and heatsinks replaced together.

Memory, PCIe and cooling

Memory on this platform is DDR5-4800 ECC in two channels up to 128 GB. Two channels keep 16 threads supplied in virtualization and backup mixes. Population order follows the board manual, and ECC should stay enabled for business data.

PCI Express connectivity is Gen 5 with x20 lanes from the CPU in a 1x16 plus 1x4 layout, plus 8 DMI lanes to the chipset. That lane budget feeds an NVMe array plus 10-gigabit networking on an entry server without strain. Lane splits follow the board block diagram.

Cooling uses standard LGA 1700 retention, and the 80 W class suits tower air coolers and 1U server heatsinks rated for that class. The junction limit of 100 degrees C suits ventilated racks. Firmware power limits can cap draw below the default where a quiet office tower demands it, at some cost in sustained clocks.

Upgrade paths

On the same socket, the path up from the 6357P is the 8-core Intel Xeon 6369P for top clocks on LGA 1700 server boards where the budget allows. Each move keeps board and memory where the power class allows, plus a BIOS that already supports the 6300P range.

The step down to the 8-core Intel Xeon 6353P trims clocks for the 65 W class, while the 6-core Intel Xeon 6349P trades cores for frequency. A move to BGA 4368 Granite Rapids-D is a different soldered platform with many more cores for edge racks. That change replaces board, memory and cooling from scratch.