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Intel
Intel Core Ultra 9 285 BX80768285 desktop processor
24-core Arrow Lake desktop CPU with 8 performance and 16 efficient cores, 65W base power, up to 5.6GHz turbo, 36MB L3 cache, DDR5-6400 support and integrated Intel Graphics
- Processors TypeDesktop
- NameCore Ultra 9 285
- CPU Socket TypeLGA 1851
- Core NameArrow Lake
- # of Cores24-Core (8P+16E)
- # of Threads24-Threads
- 24 performance and efficient cores handle heavy multitasking
- Up to 5.6 GHz Thermal Velocity Boost accelerates single-thread speed
- 65 W base power keeps cooling demands manageable
- Supports up to 256 GB DDR5 6400 MT/s memory
- Integrated Intel Graphics runs at up to 2.0 GHz max dynamic frequency
Core Ultra 9 285 24-core desktop processor
The Intel Core Ultra 9 285 is a 24-thread desktop CPU built on the Arrow Lake architecture with eight performance cores and sixteen efficient cores. It fits the LGA 1851 socket and supports up to 256 GB of DDR5 memory across two channels. Integrated Intel Graphics run at a 300 MHz base frequency.
3nm Arrow Lake architecture and 65W base power
The chip uses TSMC N3B 3nm manufacturing and operates at a 65 W base power with a 182 W maximum turbo power. Performance cores reach up to 5.4 GHz turbo while efficient cores hit 4.6 GHz, with Thermal Velocity Boost allowing 5.6 GHz. The 40 MB L2 and 36 MB L3 caches feed data to both core types.
Sustained load behaviour with 24 PCIe lanes
Under continuous multi-threaded workloads the processor manages power between performance and efficient cores to stay within thermal limits. The 24 PCI Express 5.0 and 4.0 lanes maintain bandwidth for storage and add-in cards during extended sessions. ECC memory support adds data integrity for long-running compute tasks.
Highlights
- 24 performance and efficient cores handle heavy multitasking
- Up to 5.6 GHz Thermal Velocity Boost accelerates single-thread speed
- 65 W base power keeps cooling demands manageable
- Supports up to 256 GB DDR5 6400 MT/s memory
- Integrated Intel Graphics runs at up to 2.0 GHz max dynamic frequency
Specifications
| Brand | Intel |
|---|---|
| Processors Type | Desktop |
| Series | Core Ultra 9 (Series 2) |
| Name | Core Ultra 9 285 |
| Model | BX80768285 |
| CPU Socket Type | LGA 1851 |
| Core Name | Arrow Lake |
| # of Cores | 24-Core (8P+16E) |
| # of Threads | 24-Threads |
| Operating Frequency | Performance-core Base Frequency: 2.5 GHz Efficient-core Base Frequency: 1.9 GHz |
| Max Turbo Frequency | P-core Max Turbo Frequency: Up to 5.4 GHz E-core Max Turbo Frequency: Up to 4.6 GHz Intel Thermal Velocity Boost Frequency: Up to 5.6 GHz Intel Turbo Boost Max Technology 3.0 Frequency: Up to 5.5 GHz |
| L2 Cache | 40MB |
| L3 Cache | 36MB |
| Manufacturing Tech | 3nm (TSMC N3B) |
| Memory Types | Up to DDR5 6400 MT/s |
| Memory Channel | 2 |
| Max Memory Size | 256 GB |
| ECC Memory | Supported |
| Integrated Graphics | Intel Graphics |
| Graphics Base Frequency | 300 MHz |
| Graphics Max Dynamic Frequency | 2.0 GHz |
| Scalability | 1S Only |
| PCI Express Revision | 5.0 / 4.0 |
| PCI Express Configurations | Up to 1x16+2x4, 2x8+2x4, 1x8+4x4 |
| Max Number of PCI Express Lanes | 24 |
| Thermal Design Power | 65W |
| Max Turbo Power | 182W |
| Cooling Device | Intel Laminar RH2 |
| Compatible Desktop Chipsets | Intel 800 Series Chipset |
| Advanced Technologies | Intel Gaussian & Neural Accelerator: 3.5 Intel Thread Director: Yes Intel Speed Shift Technology: Yes Intel Thermal Velocity Boost: Yes Intel Turbo Boost Max Technology 3.0: Yes Intel Turbo Boost Technology: 2.0 Intel Hyper-Threading Technology: No Intel 64: Yes Instruction Set: 64-bit Instruction Set Extensions: Intel SSE4.1, Intel SSE4.2, Intel AVX2 Idle States: Yes Enhanced Intel SpeedStep Technology: Yes Thermal Monitoring Technologies: Yes Intel Volume Management Device (VMD): Yes |
| Security & Reliability | Intel vPro Eligibility: Intel vPro Enterprise Intel Threat Detection Technology (TDT): Yes Intel Active Management Technology (AMT): Yes Intel Standard Manageability (ISM): Yes Intel Remote Platform Erase (RPE): Yes Intel One-Click Recovery: Yes Intel Secure Key: Yes Intel Control-Flow Enforcement Technology: Yes Intel Total Memory Encryption - Multi Key: Yes Intel AES New Instructions: Yes Intel Trusted Execution Technology: Yes Execute Disable Bit: Yes Intel OS Guard: Yes Intel Boot Guard: Yes Mode-based Execute Control (MBEC): Yes Intel Stable IT Platform Program (SIPP): Yes Intel |
| Shipping weight | 0.70 kg |
| Package size | 152 × 127 × 127 mm |
Questions about this item
What socket and cooler mounting does the Core Ultra 9 285 require?
It uses the LGA 1851 socket. The boxed Intel Laminar RH2 cooler is included and mounts directly to the standard LGA 1851 retention mechanism.
What is the critical step when installing the LGA 1851 processor into the socket?
Align the processor notches with the socket keys, place it gently without force, then lower the retention lever fully until it locks; skipping the alignment check can bend the delicate LGA 1851 contacts.
What maintenance will the included Laminar RH2 cooler need over time?
Clean dust from the heatsink fins and fan blades periodically with compressed air; if the pre-applied thermal paste dries out after several years, remove the cooler, clean both surfaces with isopropyl alcohol, and apply fresh paste.
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