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