Intel Core Ultra 9 Processor 285K

Intel Core Ultra 9 Processor 285K

Brand: Intel | Category: CPUs

SKU: INTE-COREULTRA9285K | Part #: BX80768285K | MPN: BX80768285K

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About the Intel Core Ultra 9 Processor 285K

The Intel Core Ultra 9 Processor 285K is the pinnacle of Intel's Arrow Lake-S desktop platform, built on a disaggregated multi-tile architecture that combines a compute tile manufactured on Intel 20A-derived process technology with an I/O tile on TSMC N6. The processor features 8 Performance-cores (P-cores) running up to 5.7 GHz and 16 Efficient-cores (E-cores) totaling 24 cores and 24 threads — a deliberate architectural shift that prioritizes high-density multi-threaded throughput alongside single-threaded bursts. Critically, Arrow Lake eliminates Hyper-Threading on P-cores to reduce scheduler overhead in latency-sensitive workloads, while the expanded E-core cluster handles background and parallel tasks with exceptional power efficiency.

What distinguishes the 285K within the enterprise desktop and professional workstation segment is the integration of Intel's Neural Processing Unit (NPU), delivering up to 13 TOPS of dedicated AI inference compute. Combined with up to 67 TOPS of total platform AI performance when the integrated Intel Arc GPU and CPU vector engines are included, the 285K is designed to run on-device AI models — including large language model inferencing, image generation pipelines, and real-time speech recognition — without offloading to a discrete accelerator. This makes it particularly compelling for AI developers, data scientists, and creative professionals who require low-latency local inference alongside high-bandwidth CPU compute.

The 285K pairs with the Intel 800-series chipset (Z890) platform, supporting DDR5-6400 memory in dual-channel configuration and PCIe 5.0 x16 plus PCIe 4.0 lanes for contemporary GPU and NVMe storage connectivity. The processor's 125 W base power (PBP) scales up to 250 W maximum turbo power (MTP), and it ships with an unlocked multiplier enabling full overclocking headroom on compatible motherboards. Intel Thread Director continues to intelligently distribute workloads across the heterogeneous core topology, ensuring operating systems schedule threads optimally without developer intervention.

Ideal for

  • On-device AI model inferencing for developers building and testing LLM or generative AI applications locally without cloud dependency
  • 3D rendering and simulation workloads in engineering and architectural visualization firms requiring sustained multi-core throughput across 24 cores
  • Video production and real-time encoding pipelines leveraging Intel Quick Sync hardware encode/decode engines alongside high single-core burst performance
  • Software build and compilation environments where rapid iteration across large codebases benefits from the combination of high-frequency P-cores and throughput-optimized E-cores
  • Financial modeling and quantitative analysis workstations running multi-threaded Monte Carlo simulations and data processing across high-core-count parallel tasks
  • AI-assisted creative workflows in professional design studios where NPU-accelerated background removal, upscaling, and content-aware editing run concurrently with GPU rendering

Technical specifications

ManufacturerIntel
Product LineIntel Core Ultra 9 (Series 2)
Processor Number285K
CodenameArrow Lake-S
SocketLGA1851
Total Cores24 (8 P-cores + 16 E-cores)
Total Threads24
P-core Base Frequency3.7 GHz
P-core Maximum Turbo Frequency5.7 GHz
E-core Base Frequency3.2 GHz
E-core Maximum Turbo Frequency4.6 GHz
Total L2 Cache40 MB
Total L3 Cache (Intel Smart Cache)36 MB
Processor Base Power (PBP)125 W
Maximum Turbo Power (MTP)250 W
Supported Memory TypeDDR5
Maximum Memory SpeedDDR5-6400 (native)
Maximum Memory Capacity192 GB
Memory ChannelsDual-Channel
PCIe RevisionPCIe 5.0 (x16 CPU) + PCIe 4.0 (chipset via Z890)
Integrated GraphicsIntel Arc Graphics (4 Xe-cores)
NPUIntel AI Boost NPU — up to 13 TOPS
Total Platform AI PerformanceUp to 67 TOPS (CPU + GPU + NPU combined)
Hyper-Threading TechnologyNot supported (P-cores are single-threaded per core)
Overclocking SupportYes (unlocked multiplier)
Compatible ChipsetIntel Z890
LithographyIntel 20A (Compute Tile) / TSMC N6 (I/O Tile)
Launch DateQ4 2024

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Technical Specifications

BrandIntel
CategoryCPUs
SKUINTE-COREULTRA9285K
Part NumberBX80768285K
ConditionNew
Product LineIntel Core Ultra 9 (Series 2)
Processor Number285K
CodenameArrow Lake-S
SocketLGA1851
Total Cores24 (8 P-cores + 16 E-cores)
Total Threads24
P-core Base Frequency3.7 GHz
P-core Maximum Turbo Frequency5.7 GHz
E-core Base Frequency3.2 GHz
E-core Maximum Turbo Frequency4.6 GHz
Total L2 Cache40 MB
Total L3 Cache (Intel Smart Cache)36 MB
Processor Base Power (PBP)125 W
Maximum Turbo Power (MTP)250 W
Supported Memory TypeDDR5
Maximum Memory SpeedDDR5-6400 (native)
Maximum Memory Capacity192 GB
Memory ChannelsDual-Channel
PCIe RevisionPCIe 5.0 (x16 CPU) + PCIe 4.0 (chipset via Z890)
Integrated GraphicsIntel Arc Graphics (4 Xe-cores)
NPUIntel AI Boost NPU — up to 13 TOPS
Total Platform AI PerformanceUp to 67 TOPS (CPU + GPU + NPU combined)
Hyper-Threading TechnologyNot supported (P-cores are single-threaded per core)
Overclocking SupportYes (unlocked multiplier)
Compatible ChipsetIntel Z890
LithographyIntel 20A (Compute Tile) / TSMC N6 (I/O Tile)
Launch DateQ4 2024

Frequently Asked Questions about Intel Core Ultra 9 Processor 285K

What does the Intel Core Ultra 9 Processor 285K do?

The Intel Core Ultra 9 Processor 285K is enterprise IT hardware deployed in production data centers, server rooms, and edge sites across the GCC and EMEA region.

What does the Intel Core Ultra 9 Processor 285K do?

The Intel Core Ultra 9 Processor 285K is enterprise IT hardware deployed in production data centers, server rooms, and edge sites across the GCC and EMEA region.

What does the Intel Core Ultra 9 Processor 285K do?

The Intel Core Ultra 9 Processor 285K is enterprise IT hardware deployed in production data centers, server rooms, and edge sites across the GCC and EMEA region.

What are the headline specs of the Intel Core Ultra 9 Processor 285K?

Key specifications for the Intel Core Ultra 9 Processor 285K: new condition; manufacturer Intel; product line Intel Core Ultra 9 (Series 2); processor number 285K; codename Arrow Lake-S; socket LGA1851; total cores 24 (8 P-cores + 16 E-cores). Manufacturer part number BX80768285K. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.

What are the headline specs of the Intel Core Ultra 9 Processor 285K?

Key specifications for the Intel Core Ultra 9 Processor 285K: new condition; manufacturer Intel; product line Intel Core Ultra 9 (Series 2); processor number 285K; codename Arrow Lake-S; socket LGA1851; total cores 24 (8 P-cores + 16 E-cores). Manufacturer part number BX80768285K. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.