Information about Intel‘s upcoming Arrow Lake-S desktop CPU platform has been disclosed, revealing configurations of up to 24 cores on 800-series motherboards. The leak, shared by YuuKi_AnS, includes internal documents detailing the Arrow Lake-S Desktop CPU platform. While there is existing knowledge about Intel’s Arrow Lake CPUs, this leak provides a more comprehensive look at the platform’s offerings.
The All New Intel Arrow Lake-S Desktop CPU
The Arrow Lake-S Desktop CPUs will employ the Lion Cove P-Core and Skymont E-Core architecture, boasting up to 8 P-Cores and 16 E-Cores, totaling 24 cores and 32 threads—similar to the current 14th and 13th Gen flagship CPUs. These CPUs, with a maximum 125W PL1 TDP, feature a 3.5 GHz base clock (in Pre-Alpha state) and incorporate the latest GT1 Xe-LPG iGPU, albeit with fewer Xe-cores compared to Meteor Lake CPUs. Notably, there is a mention of 8 IA cores with 8 threads, specifically disabled in the 125W variant.
According to a previously leaked slide, the Arrow Lake-S Desktop CPUs offer a 5% IPC increase and a 15% boost in multi-threaded performance. The Lion Cove P-Core has a larger L2 cache per core compared to Raptor Lake-S and Alder Lake-S. The Arrow Lake-S CPUs belong to the 15th Gen lineup, although there’s uncertainty about whether this branding is outdated or still in use for the desktop family. The CPUs are listed as being in the pre-alpha state, with BIOS issues expected to be resolved in a future step.
In terms of the platform, Arrow Lake-S Desktop CPUs will be compatible with new LGA 1851 socketed motherboards featuring the 800-series PCH (Z890, H870, B860, and H810 series). Top-tier motherboards support up to DDR5-6400 memory, with configurations like 6+8 and 6+16 revealed. The platform will natively support higher memory speeds, up to 6400 MT/s in a dual-channel configuration, and will include native x16 PCIe Gen5 dGPU and x4 PCIe Gen5 M.2 lanes.
The Arrow Lake-S CPU’s I/O includes DDR5 UDIMM/SODIMM at 6400 MT/s native speed, various display outputs, USB 4.0, HDMI 2.1, PCIe Gen5 lanes, SATA III lanes, and more. The accompanying MTL-S/ARL-S PCH for 800-series motherboards features DMI Gen4, PCIe Gen4 lanes, GbE ports, USB 3.2 Gen2 x1 ports, USB 2.0 ports, and other components.
Intel plans to launch Arrow Lake-S Desktop CPUs in the second half of 2024, targeting gaming platforms and competing with AMD’s Zen 5-based Ryzen “Granite Ridge” CPUs. The CPUs will utilize the LGA 1851 socket on 800-series motherboards, supporting only DDR5 with no DDR4 compatibility. The platform aims to provide increased PCIe Gen 5.0 lanes through both the CPU and PCH. Arrow Lake-S CPUs will be the first in the desktop family to feature 3 MB L2 Cache per P-Core, refreshed Alchemist iGPUs, integrated LLC “Adamantine” for GPU Tile, and various CPU SKUs. The socket’s longevity is planned until 2026.
