Intel Core Ultra 9 285K Series 2 24-Core LGA1851 Desktop Processor
- Intel Core Ultra 9 285K with 24 Cores, 24 Threads and Up to 5.70GHz Turbo
- 36MB Intel Smart Cache, 40MB L2 Cache and DDR5-6400 Memory Support
- Integrated Intel Graphics plus Intel AI Boost NPU with Up to 36 Overall Peak TOPS
- PCIe 5.0 / 4.0, Up to 24 PCIe Lanes and FCLGA1851 Socket
Intel Core Ultra 9 285K Series 2 Desktop Processor
Product Features
The Intel Core Ultra 9 285K is a desktop processor from the Intel Core Ultra Series 2 family, based on the Arrow Lake platform. It uses an FCLGA1851 socket and combines 8 Performance-cores with 16 Efficient-cores for a total of 24 cores and 24 threads.
The processor reaches a maximum turbo frequency of up to 5.70GHz through Intel Thermal Velocity Boost. Intel Turbo Boost Max Technology 3.0 supports frequencies up to 5.60GHz, while Performance-cores can boost up to 5.50GHz and Efficient-cores up to 4.60GHz.
The Core Ultra 9 285K includes 36MB Intel Smart Cache and 40MB total L2 cache. Its processor base power is rated at 125W, while maximum turbo power is specified at 250W.
Memory support extends to DDR5 speeds up to 6400 MT/s with two memory channels and a maximum supported memory capacity of 256GB. ECC memory support is also available with compatible platform configurations.
The processor includes integrated Intel Graphics with four Xe-cores, a maximum dynamic graphics frequency of 2.00GHz and support for up to four displays. Supported graphics outputs include DisplayPort 2.1 UHBR20, HDMI 2.1 FRL and eDP 1.4b.
Intel AI Boost is integrated as the processor’s NPU, providing up to 13 INT8 TOPS. The integrated GPU provides up to 8 INT8 TOPS, while the processor has an overall peak AI performance rating of up to 36 INT8 TOPS.
Expansion support includes PCI Express 5.0 and PCIe 4.0 with up to 24 PCIe lanes. The processor also supports Intel Thunderbolt 4, Intel Thread Director, Intel Deep Learning Boost, Intel Thermal Velocity Boost and multiple hardware virtualization technologies.
Technical Specifications
| Brand | Intel |
| Series | Intel Core Ultra 9 |
| Model | 285K |
| Product Collection | Intel Core Ultra Processors Series 2 |
| Code Name | Arrow Lake |
| Segment | Desktop |
| Socket | FCLGA1851 |
| CPU Lithography | TSMC N3B |
| Total Cores | 24 |
| Performance Cores | 8 |
| Efficient Cores | 16 |
| Low Power Efficient Cores | 0 |
| Total Threads | 24 |
| Maximum Turbo Frequency | 5.70GHz |
| Thermal Velocity Boost Frequency | 5.70GHz |
| Turbo Boost Max 3.0 Frequency | 5.60GHz |
| P-Core Max Turbo | 5.50GHz |
| E-Core Max Turbo | 4.60GHz |
| P-Core Base Frequency | 3.70GHz |
| E-Core Base Frequency | 3.20GHz |
| Intel Smart Cache | 36MB |
| Total L2 Cache | 40MB |
| Processor Base Power | 125W |
| Maximum Turbo Power | 250W |
| Maximum Memory | 256GB |
| Memory Type | DDR5-6400 |
| Memory Channels | 2 |
| ECC Memory Support | Yes |
| Integrated Graphics | Intel Graphics |
| Graphics Base Frequency | 300MHz |
| Graphics Max Dynamic Frequency | 2.00GHz |
| Xe-Cores | 4 |
| GPU Peak AI Performance | 8 INT8 TOPS |
| NPU | Intel AI Boost |
| NPU Peak AI Performance | 13 INT8 TOPS |
| Overall Peak AI Performance | 36 INT8 TOPS |
| Maximum Displays | 4 |
| Graphics Outputs | eDP 1.4b, DisplayPort 2.1 UHBR20, HDMI 2.1 FRL |
| PCI Express Revision | PCIe 5.0 / PCIe 4.0 |
| Maximum PCIe Lanes | 24 |
| DMI Revision | 4.0 |
| Maximum DMI Lanes | 8 |
| Intel Thunderbolt 4 | Yes |
| Maximum Operating Temperature | 105°C |
| Package Size | 45 × 37.5 mm |
| Intel Thread Director | Yes |
| Intel Deep Learning Boost | Yes |
| Intel Thermal Velocity Boost | Yes |
| Intel Turbo Boost Max 3.0 | Yes |
| Intel Hyper-Threading | No |
| Instruction Set | 64-bit |
| Virtualization | Intel VT-x / VT-d Supported |
Frequently Asked Questions (FAQs)
How many cores and threads does the Intel Core Ultra 9 285K have?
It has 24 cores in total, including 8 Performance-cores and 16 Efficient-cores, with 24 processing threads.
What is the maximum turbo frequency of the Core Ultra 9 285K?
The processor can reach up to 5.70GHz through Intel Thermal Velocity Boost under supported operating conditions.
Which socket does the Intel Core Ultra 9 285K use?
It uses the FCLGA1851 socket and requires a compatible LGA1851 motherboard.
Does the Core Ultra 9 285K support DDR4 memory?
No. The specifications provided list support for DDR5 memory up to 6400 MT/s.
Does the Intel Core Ultra 9 285K include integrated graphics and an NPU?
Yes. It includes integrated Intel Graphics with four Xe-cores and an Intel AI Boost NPU rated at up to 13 INT8 TOPS.
How much power does the Intel Core Ultra 9 285K use?
Intel specifies a processor base power of 125W and a maximum turbo power of 250W.
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