Intel Xeon 6315P socket: LGA 1700

What the Xeon 6315P is

The Intel Xeon 6315P is the entry 4-core member of the Xeon 6 6300P Raptor Lake server stack on Socket LGA 1700. It runs 4 Performance-cores without Hyper-Threading for 4 threads at 2.8 GHz base with boost to 4.7 GHz, backed by 12 MB of cache and a 55 W TDP. Intel launched the 6300P range in the first quarter of 2025 at a 239 USD recommended price, built on Intel 7 for single-socket entry servers.

Four unthreaded cores suit firewalls, DNS boxes, door controllers and single-app towers where a small core count keeps licensing and power low. The absence of Hyper-Threading keeps timing predictable for control loops. The 2.8 GHz base keeps sustained single-service throughput steady, while bursts to 4.7 GHz clear interactive spikes.

Against the 4-core Intel Xeon 6325P above it, the 6315P gives up threading and frequency for the lowest 6300P price. Against older 4-core entry Xeons, it adds higher boost with DDR5 and PCIe 5.0 lanes. ECC memory and 1S server firmware separate it from desktop Pentium and 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 6315P 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 6315P, while desktop boards stay outside the validated list. Because board vendors qualify power classes individually, the 6315P 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 4 threads supplied in firewall and terminal mixes with ease. 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 boot drive plus a gigabit network card on a small server without strain. Lane splits follow the board block diagram.

Cooling uses standard LGA 1700 retention, and the 55 W class suits compact 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 silent branch office demands it, at some cost in sustained clocks.

Upgrade paths

On the same socket, the path up from the 6315P starts with the 4-core Intel Xeon 6325P for threading and frequency on LGA 1700 server boards where the budget allows. The 6-core Intel Xeon 6333P follows for more cores at 65 W. Each move keeps board and memory where the power class allows, plus a BIOS that already supports the 6300P range.

There is no smaller Xeon 6300P part below the 6315P, so a lower budget target means older entry stock. 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.