Intel Ultra 9 285K Desktop Processor 24 Cores 5.7GHz Boxed

The Intel Ultra 9 285K is a flagship desktop processor engineered for enthusiasts and creators who demand uncompromising performance. Featuring 24 cores (8 Lion Cove P-cores and 16 Skymont E-cores), 24 threads, and a maximum turbo frequency of 5.70 GHz, this Arrow Lake-S CPU delivers exceptional multi-threaded and single-threaded capabilities. With 40 MB of L2 cache, 36 MB of L3 cache, and support for DDR5 6400 MT/s memory across the LGA 1851 socket, the Intel Ultra 9 285K is built to power the most demanding workloads.

Performance and Architecture

The Intel Ultra 9 285K is built on Intel’s Arrow Lake-S architecture using TSMC’s N3B 3nm manufacturing process, delivering significant improvements in power efficiency compared to previous generations. The 8 Lion Cove performance cores handle intensive single-threaded tasks while the 16 Skymont efficiency cores manage background workloads, resulting in a balanced 24-core, 24-thread design without HyperThreading. With a base clock of 3.7 GHz and a maximum turbo of 5.70 GHz, this processor excels in gaming, content creation, and productivity applications.

Memory and Connectivity

Supporting DDR5 memory at up to 6400 MT/s with a maximum capacity of 192 GB, the Intel Ultra 9 285K provides a maximum memory bandwidth of 102 GB/s for data-intensive workloads. ECC memory support is included for systems requiring data integrity. The processor features full PCIe 5.0 support, enabling next-generation graphics cards and ultra-fast NVMe storage devices to operate at their full potential on the LGA 1851 platform.

Power and Thermal Design

The Intel Ultra 9 285K operates with a 125W base TDP and can draw up to 250W under maximum turbo power conditions. This unlocked K-series processor allows enthusiasts to push frequencies higher through overclocking when paired with adequate cooling. The 3nm node contributes to improved performance-per-watt, making the Intel Ultra 9 285K a compelling choice for high-performance builds where power efficiency matters.

Platform and Compatibility

Designed for the LGA 1851 socket (FCLGA-1851), the Intel Ultra 9 285K requires a compatible Intel 800-series motherboard chipset. The boxed retail package includes the processor only, allowing users to select their preferred cooling solution. With PCIe 5.0 lanes, DDR5 6400 support, and the latest Arrow Lake architecture, this CPU provides a future-ready foundation for high-end desktop systems geared toward gaming, professional content creation, and heavy multitasking.