Intel Core Ultra 9 285K Processor
24 Cores | 24 Threads | Max. Boost Clock Up To 5.7 GHz | Intel LGA1851 Socket
Intel's new-generation flagship. The Core Ultra 9 285K brings 24 cores (8 P-cores plus 16 E-cores) with a 5.7GHz max turbo on the brand-new LGA1851 platform, plus a built-in NPU for on-device AI.
Arrow Lake is all about efficiency. It delivers flagship-class multi-core performance in rendering, encoding and compiling while drawing noticeably less power than the previous generation. Creators and pros, this one's for you.
It's unlocked for overclocking, has integrated Xe graphics and runs on DDR5 only, with support for fast CUDIMM memory on Z890. Pair it with a 360mm AIO for the best results.
Best for: Content creation, 3D rendering, software development, AI workloads and high-end gaming.
Platform and compatibility
It uses the Intel LGA1851 socket and works with H810, B860, Z890 motherboards. LGA1851 is Intel's newest desktop platform, with PCIe 5.0, Thunderbolt 4 on many boards and a built-in NPU for AI features.
Key specifications
Brand: Intel
Series: Intel Core Ultra 9 (Series 2)
Architecture: Arrow Lake (Core Ultra Series 2)
Socket: Intel LGA1851
Cores: 24 (8 P-cores + 16 E-cores)
Threads: 24
Base clock: 3.7 GHz (P-core)
Max boost clock: up to 5.7 GHz
Cache: 36 MB Intel Smart Cache
Integrated graphics: Intel Graphics (4 Xe-cores)
Memory support: DDR5 up to 6400 MT/s
PCIe: PCIe 5.0 and 4.0
Power: 125W base, 250W max turbo
Unlocked for overclocking: Yes
Frequently asked questions
Which motherboard does the Core Ultra 9 285K need?
An LGA1851 Z890 board to overclock, or B860 for stock use. LGA1700 boards are not compatible.
Does it support DDR4?
No. Core Ultra Series 2 is DDR5 only.
What does the NPU do?
It's a dedicated AI engine that runs features like Windows Studio Effects and AI-accelerated apps efficiently, without loading the CPU or GPU.
Which motherboard is compatible?
It needs an Intel 800-series LGA1851 board: H810, B860 or Z890. Older LGA1700 boards won't fit, and it's DDR5 only.
What RAM should I use?
DDR5 only. A 2 x 16GB DDR5-6000 to 6400 kit is the sweet spot. Arrow Lake also supports fast CUDIMM memory on Z890.
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