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CPUProcessors·Intel

Intel Core Ultra 9 285K

4.3
Shed ScoreEditorial rating out of 5, based on specs, build quality and value in its class.
  • 24-core multitasking powerhouse
  • Built-in AI NPU
  • DDR5 & PCIe 5.0 ready

The Intel Core Ultra 9 285K is a strong flagship choice for creators and multitaskers needing serious core counts and platform longevity with DDR5/PCIe 5.0, though gamers chasing the absolute highest FPS may find rivals…

  • Cores/Threads24 Cores / 24 Threads
  • Max Turbo Frequency5.7 GHz
  • Cache36MB L3

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// Datasheet

Technical specifications

CORE-ULTRA-9-285K5 fields
Cores/Threads24 Cores / 24 Threads
Max Turbo Frequency5.7 GHz
Cache36MB L3
SocketLGA1851
TDP (Base/Turbo)125W / 250W

// Verdict

Our take

4.3

The Intel Core Ultra 9 285K is a strong flagship choice for creators and multitaskers needing serious core counts and platform longevity with DDR5/PCIe 5.0, though gamers chasing the absolute highest FPS may find rivals slightly ahead. It's a solid, forward-looking CPU for custom builds prioritizing productivity and AI-ready workloads.

// Trade-offs

Pros and cons

+What we like

  • Excellent multi-threaded performance for rendering and productivity
  • Improved power efficiency vs previous gen at stock settings
  • Integrated NPU adds AI acceleration for Copilot+ features
  • Strong PCIe 5.0 and DDR5 connectivity for future-proofing
  • Unlocked multiplier for overclocking enthusiasts

−Watch out for

  • Requires new LGA1851 motherboard, no backward compatibility
  • Loses Hyper-Threading on P-cores, hurting some legacy benchmarks
  • Gaming performance gains are modest over 14900K in some titles
  • High power draw under full load requires robust cooling
  • Premium price point compared to competing platforms

// Feature set

Key features

  • 0124 cores (8 Performance + 16 Efficient) / 24 threads
  • 02Up to 5.7 GHz max turbo frequency
  • 0336MB Intel Smart Cache (L3)
  • 04LGA1851 socket, requires new 800-series chipset motherboard
  • 05Integrated NPU for AI workload acceleration
  • 06Supports DDR5-6400+ memory and PCIe 5.0 lanes
  • 07125W base power, 250W max turbo power

// Long read

Full review

The Intel Core Ultra 9 285K stands as Intel's flagship desktop processor, built on the new Arrow Lake architecture and designed for enthusiasts, gamers, and content creators who demand uncompromising performance from their custom builds. Featuring a hybrid core configuration with 24 cores total, split between Performance-cores and Efficient-cores, this chip delivers exceptional multi-threaded throughput for demanding workloads like video editing, 3D rendering, and software compilation, while still maintaining strong single-threaded performance for gaming and everyday responsiveness. Manufactured using an advanced process node and paired with the new LGA 1851 socket, the 285K also integrates an NPU for AI-accelerated tasks, positioning it as a forward-looking choice for builders who want their rig to handle both traditional computing and emerging AI workloads.

For PC builders, the Core Ultra 9 285K offers a compelling platform upgrade path, pairing with new 800-series motherboard chipsets that unlock support for faster DDR5 memory and expanded PCIe lanes for next-generation GPUs and high-speed storage. The processor's improved power efficiency means builders can achieve high performance without the thermal and power demands of previous generations, making it easier to design cooling solutions around it, whether that's a high-end air cooler or a custom liquid loop. Unlocked for overclocking, the 285K gives enthusiasts the flexibility to push clock speeds further, squeezing out additional performance for benchmarking or competitive gaming setups, while its integrated graphics provide a reliable fallback for troubleshooting or basic display output before a discrete GPU is installed.

Within the broader PC components ecosystem, the Core Ultra 9 285K serves as the centerpiece around which an entire high-performance build can be designed, influencing choices in motherboard, memory kit, power supply, and cooling solution. Its combination of raw core count, improved IPC gains, and AI-ready architecture makes it suitable for a wide range of use cases, from flagship gaming rigs paired with top-tier graphics cards to professional workstations handling rendering pipelines and large-scale data processing. For custom PC builders aiming to future-proof their system with the latest Intel silicon, the Core Ultra 9 285K represents a definitive step forward, combining cutting-edge manufacturing, platform longevity, and the processing muscle needed to handle tomorrow's software demands.

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