Intel Core Ultra 9 285K 3.7Ghz (24-Core, 24 Threads, 76MB Cache) CPU w/ Intel Xe Core Graphics (TDP 255W) (LGA1851) CLICK TO EXPAND
Intel Core Ultra 9 285K 3.7Ghz (24-Core, 24 Threads, 76MB Cache) CPU w/ Intel Xe Core Graphics (TDP 255W) (LGA1851)
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Intel Core Ultra 9 285K 3.7Ghz (24-Core, 24 Threads, 76MB Cache) CPU w/ Intel Xe Core Graphics (TDP 255W) (LGA1851)

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Overview
Product NameIntel Core Ultra 9 Processor 285K
Model NumberBX80768285K
Product LineCore Ultra 9 (Series 2)
Codename / GenerationArrow Lake (Core Ultra 200S)
Launch SegmentDesktop
64-bit SupportYes
Unlocked / OverclockableYes (K-series)
CPU Cores & Threads
Total Cores24 (8 P-cores + 16 E-cores)
Total Threads24 (No Hyper-Threading)
Performance Cores (P-cores)8
Efficient Cores (E-cores)16
Hyper-ThreadingNo (removed in Arrow Lake)
Core ArchitecturePerformance Hybrid Architecture (P-core + E-core)
Clock Speeds
P-Core Base Frequency3.7 GHz
Max Turbo Boost Frequency5.7 GHz
Turbo Boost Max 3.0 Frequency5.6 GHz
Turbo Boost TechnologyIntel Turbo Boost Max Technology 3.0 + Thermal Velocity Boost
Cache
L1 Instruction Cache (P-cores)8 × 64 KB
L1 Data Cache (P-cores)8 × 48 KB
L1 Instruction Cache (E-cores)16 × 64 KB
L1 Data Cache (E-cores)16 × 32 KB
L2 Cache (P-cores)8 × 3 MB
L2 Cache (E-cores)4 × 4 MB
Total L2 Cache40 MB
L3 Cache (Intel Smart Cache)36 MB
Total Cache76 MB (L2 + L3 combined)
Power
Processor Base Power (PL1 / TDP)125 W
Maximum Turbo Power (MTP / PL2)250 W
Maximum Junction Temperature (TJMax)105°C
Thermal Solution IncludedNo (sold separately)
Memory
Memory TypeDDR5 (CUDIMM supported)
Max Memory SpeedDDR5-6400 MT/s (native); DDR5-8000+ (overclocked via XMP)
Max Memory Size192 GB
Memory ChannelsDual-Channel
ECC Memory SupportYes
Max Memory Bandwidth102.4 GB/s
Intel XMP SupportYes (Intel eXtreme Memory Profile)
Socket & Platform
CPU SocketLGA1851 (FCLGA1851)
Compatible ChipsetsIntel 800 Series (Z890, etc.)
Package3D Foveros Multi-Chip Packaging (MCP)
PCIe & Connectivity
PCIe Version SupportPCIe 5.0 & PCIe 4.0
CPU PCIe Lanes24 total (PCIe 5.0 ×16 GPU + PCIe 5.0 ×4 NVMe + PCIe 4.0)
Chipset PCIe Lanes20 additional PCIe 4.0 lanes (via Z890 chipset)
Wi-Fi SupportDiscrete Intel Wi-Fi 710 + Bluetooth 5.4 (platform support)
Intel vPro SupportYes
Integrated Graphics
GPU NameIntel Xe-LPG Graphics (Xe Core Graphics)
GPU ArchitectureIntel Xe-LPG (same as Meteor Lake; not Battlemage/Xe2)
Xe Cores4 Xe Cores
Execution Units (EUs)64 EUs
GPU Boost Clock2.0 GHz
Max Resolution (HDMI)7680 × 4320 @ 60 Hz
Max Display Outputs4 simultaneous displays
Intel Quick Sync VideoYes
AI & NPU
Integrated NPUYes (dedicated AI accelerator)
NPU Throughput13 TOPS (INT8)
Total Platform AI TOPS (CPU+GPU+NPU)~36 TOPS combined
Microsoft Copilot+ CertifiedNo (requires 40+ TOPS; platform reaches ~36 TOPS)
GNA (Gaussian & Neural Accelerator)GNA 3.5 (noise suppression, background blur)
Overclocking
Overclocking SupportYes (unlocked K-series)
Ratio Granularity16.6 MHz increments
Dual BCLK TuningYes (compute die and SoC die independently)
Die-to-Die Interface OCYes (MCP die-to-die interface overclocking)
Intel XTU SupportYes (Intel Extreme Tuning Utility v10+)
Technology & Features
Intel Thread DirectorYes (built-in, dynamically assigns workloads to optimal cores)
Intel Dynamic Tuning TechnologyYes
Intel Application OptimizationYes
Intel Optane Memory SupportYes
AES-NI (Hardware Encryption)Yes
Intel vPro TechnologyYes
Intel Turbo Boost Max Technology 3.0Yes
Thermal Velocity BoostYes
Intel eXtreme Memory Profile (XMP)Yes (DDR5 memory overclocking)
Instruction Set ExtensionsSSE4.1, SSE4.2, AVX-512, AVX2, BMI1, BMI2

The Intel Core Ultra 9 285K is a 24-core desktop processor built on the LGA1851 socket, featuring 8 performance cores and 16 efficient cores that work together to handle demanding workloads and heavy multitasking. With a base frequency of 3.7 GHz and max turbo frequencies reaching up to 5.7 GHz, plus 76 MB of total cache, this CPU provides the processing power for intensive applications and content creation tasks.

It supports up to 256 GB of DDR5-6400 memory across two channels and includes integrated Intel graphics for display output. The processor has a base TDP of 125W and max TDP of 250W, so a compatible cooling solution and robust power delivery are essential. Note that a cooler is not included with this processor.

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Intel Core Ultra 9 285K 3.7Ghz (24-Core, 24 Threads, 76MB Cache) CPU w/ Intel Xe Core Graphics (TDP 255W) (LGA1851)
$643.20