Core Ultra 9 285K

The Core Ultra 9 285K is a 24-core / 24-thread processor based on the Arrow Lake-S (2024−2025) architecture, manufactured on a 3 nm process node. It reaches a maximum boost clock of 5.6 GHz from a base frequency of 3.7 GHz— higher boost clocks directly translate to better single-threaded performance and responsiveness in gaming. It carries 36 MB (total) of L3 cache, plus 3 MB (per core) of L2 cache and 192 kB (per core) of L1 cache per core. In the PassMark benchmark (a comprehensive multi-threaded test), it scores 67,482, placing it in the Enthusiast performance tier as a Recent generation product. Geekbench 6 single-core (the most relevant metric for gaming FPS) records 3,200, while multi-core reaches 22,563. Cinebench R23 multi-core (measuring sustained rendering workload performance) scores 45,563.

The Core Ultra 9 285K fits into the LGA1851 socket and supports PCIe 5.0 with 24 total PCIe lanes for expansion cards and storage. It supports DDR5-6400 memory at speeds up to DDR5-6400 (faster RAM improves bandwidth-sensitive workloads), with a maximum capacity of 192 GB across 2 channels (dual-channel doubles bandwidth). It supports ECC memory, providing error-correcting capabilities — essential for mission-critical workloads and servers. Integrated graphics: Intel Arc Graphics 64EU — allows display output without a dedicated GPU, useful for troubleshooting and light tasks.

It features an unlocked multiplier, allowing enthusiasts to overclock beyond stock frequencies for additional performance. Virtualization: true — enables running virtual machines efficiently (important for development and server workloads). Its primary market competitor is the Ryzen 9 9950X.

The Core Ultra 9 285K has a rated TDP (Thermal Design Power) of 125 Watt — this indicates the amount of heat generated under sustained load and determines what cooling solution is needed. No stock cooler is included — you will need to purchase an aftermarket cooler separately. Recommended cooling: Liquid (AIO 280mm+).

At an average price of $550 (MSRP: $589), the Core Ultra 9 285K delivers 123 PassMark points per dollar. Performance ranking position: #96 out of all indexed processors.