Intel Xeon 6349P socket: LGA 1700

What the Xeon 6349P is

The Intel Xeon 6349P is the fastest 6-core member of the Xeon 6 6300P Raptor Lake server stack on Socket LGA 1700. It runs 6 Performance-cores with Hyper-Threading for 12 threads at 3.6 GHz base with boost to 5.7 GHz, backed by 18 MB of cache and a 95 W TDP. Intel launched the 6300P range in the first quarter of 2025 at a 567 USD recommended price, built on Intel 7 for single-socket entry servers.

Six fast cores suit build machines, database nodes, content platforms and latency-sensitive business apps where per-thread speed matters more than thread count. The 3.6 GHz base leads the 6-core class, so sustained single-threaded work stays fast, while bursts to 5.7 GHz match the top of the range. The 18 MB cache pool keeps working sets near the cores.

Against the 6-core Intel Xeon 6337P below it, the 6349P adds base frequency and boost at a higher 95 W class. Against the 8-core Intel Xeon 6357P above it, the 6349P trades cores for clocks. 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 6349P 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 6349P, while desktop boards stay outside the validated list. Because board vendors qualify power classes individually, the 6349P 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 12 threads supplied in build, database and content 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 95 W class needs a capable tower air cooler or 1U server heatsink rated for that class. The junction limit of 100 degrees C suits ventilated racks. Firmware power limits can cap draw below the default where thermals demand it, at some cost in sustained clocks.

Upgrade paths

On the same socket, the path up from the 6349P starts with the 8-core Intel Xeon 6357P for more cores on LGA 1700 server boards where the budget allows. The 8-core Intel Xeon 6369P follows for top clocks at 95 W. 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 6-core Intel Xeon 6337P trims clocks for the 80 W class. 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.