LGA 1851 (Socket V1) is a land grid array CPU socket designed by Intel for Meteor Lake-PS and Arrow Lake-S desktop processors, released on October 24, 2024. It increases contacts from 1700 (LGA 1700) to 1851 while maintaining the same dimensions and cooler mounting hole spacing for compatibility with existing CPU coolers. LGA 1851 supports 20 PCIe 5.0 lanes—x16 for expansion and x4 for storage—with PCIe lanes bifurcation up to three devices (x8, x4, x4). Like AMD’s AM5 socket, it exclusively supports DDR5 SDRAM, dropping DDR4 support and marking the end of mainstream DDR4 after a decade.
Arrow Lake chipsets (800 series)
| H8107 | B8608 | Z8909 | |||
|---|---|---|---|---|---|
| Overclocking | No | RAM only | Yes | ||
| Bus Interface | DMI 4.0 ×4 | DMI 4.0 ×8 | |||
| CPU support | Arrow Lake | ||||
| Memory capacity | Up to 128 GB | Up to 256 GB | |||
| Maximum DIMM slots | 2 | 4 | |||
| Maximum USB 2.0 ports | 10 | 12 | 14 | ||
| USB 3.2 ports configuration | Gen 1x1 | Up to 4 | Up to 6 | Up to 10 | |
| Gen 2 | ×1 | Up to 2 | Up to 4 | Up to 10 | |
| ×2 | None | Up to 2 | Up to 5 | ||
| Maximum SATA 3.0 ports | 4 | 8 | |||
| Processor PCI Express configuration | 5.0 | 1×16 | 1×16 or 2×8 or 1×8+2×4 | ||
| 5.0(for M.2) | None | 1x4 | |||
| 4.0(for M.2) | 1x4 | ||||
| PCH PCI Express configuration | 4.0 | 8 | 14 | 24 | |
| 3.0 | None | ||||
| Independent display support (digital ports/pipes) | 3 | 4 | |||
| Integrated wireless | Intel Wi-Fi 6E AX211 (802.11ax / Wi-Fi 6E / Bluetooth 5.3)10 | ||||
| PCIe RAID support | No | 0, 1, 5, 10 | |||
| SATA RAID support | No | 0, 1, 5, 10 | |||
| Intel Optane memory support | No | ||||
| Intel Smart Sound technology | Yes | ||||
| Intel Active Management, Trusted Execution and vPro technology | No | ||||
| Chipset TDP | 6 W | ||||
| Release date | Q1 2025 | Q4 2024 | |||
Notes
References
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Klotz, Aaron (September 21, 2023). "Intel's LGA 1851 Socket For 15th Gen Arrow Lake CPUs Detailed In 3D Schematics". HotHardware. Archived from the original on 24 December 2023. Retrieved December 24, 2023. https://hothardware.com/news/lga-1851-for-15th-gen-arrow-lake-detailed-in-3d-schematics ↩
"Intel LGA-1851 "Arrow Lake" Socket Detailed". TechPowerUp. September 21, 2023. Archived from the original on September 23, 2023. Retrieved December 24, 2023. https://www.techpowerup.com/313873/intel-lga-1851-arrow-lake-socket-detailed ↩
Norem, Josh (July 18, 2023). "Intel's Upcoming LGA 1851 Socket Details Revealed". ExtremeTech. Archived from the original on December 24, 2023. Retrieved December 24, 2023. https://www.extremetech.com/computing/intels-upcoming-lga-1851-socket-details-revealed ↩
"Intel Socket LGA1851 Only Supports DDR5 Memory". TechPowerUp. August 21, 2023. Archived from the original on November 26, 2023. Retrieved November 26, 2023. https://www.techpowerup.com/312628/intel-socket-lga1851-only-supports-ddr5-memory ↩
"Product Specifications". www.intel.com. https://www.intel.com/content/www/us/en/products/sku/241150/intel-h810-chipset/specifications.html ↩
"Product Specifications". www.intel.com. https://www.intel.com/content/www/us/en/products/sku/241152/intel-b860-chipset/specifications.html ↩
"Product Specifications". www.intel.com. https://www.intel.com/content/www/us/en/products/sku/237777/intel-z890-chipset/specifications.html ↩
depends on OEM's implementation ↩