Information About Intel® Core™ Ultra Boxed Desktop Processors (Series 2)
Content Type: Product Information & Documentation | Article ID: 000099656 | Last Reviewed: 03/11/2026
Support Knowledge Base
Find information about Intel® Core™ Ultra Boxed Desktop Processors (Series 2). Get an overview and learn about integration, compatibility, memory, and more.
Below you'll find a summary of the unlocked K/KF Intel® Core™ Ultra Processors (Series 2). For all other Intel® Core™ Ultra Boxed Desktop Processors (Series 2), visit our Product Specifications page.
| Processors Number | 285K | 265K / 265KF | 245K / 245KF | 270K Plus | 250K / KF Plus |
| Overall Peak TOPS (Int8) | 36 | 33 / 25 | 30 / 22 | 36 | 30/22 |
| Number of Performance-cores | 8 | 8 | 6 | 8 | 6 |
| Number of Efficient-cores | 16 | 12 | 8 | 16 | 12 |
| Total Threads | 24 | 20 | 14 | 24 | 18 |
| Max Turbo Frequency | 5.7GHz | 5.5 GHz | 5.2 GHz | 5.5 GHz | 5.3GHz |
| Intel® Smart Cache | 36 MB | 30 MB | 24 MB | 36 MB | 30 MB |
| Total L2 Cache | 40 MB | 36 MB | 26 MB | 40 MB | 30 MB |
| Processor Base Power | 125 W | 125 W | 125 W | 125 W | 125 W |
| Maximum Turbo Power | 250 W | 250 W | 159 W | 250 W | 159 W |
| Max Memory Size | 256 GB | 256 GB | 256 GB | 256 GB | 256 GB |
| Memory Types | Up to DDR5 6400 MT/s | Up to DDR5 6400 MT/s | Up To DDR5 7200 MT/s | Up To DDR5 7200 MT/s | Up To DDR5 7200 MT/s |
- Graphics: only 285K, 265K, 245K, 270K Plus and 250K Plus processors have Intel® Graphics, with 300 MHz and 8 GPU Peak TOPS (Int8) and 4 Xe-cores. Output: DP2.1 UHBR20 | HDM2.1 FRL 12GHz | eDP1.4b.
- NPU (Neural Processing Unit): Intel® AI Boost with 13 NPU Peak TOPS (Int8)
- AI Software Frameworks Supported by CPU: OpenVINO™ | WindowsML | DirectML | ONNX RT | WebNN
- Compatibility: Intel® Core™ Ultra Desktop Processors (Series 2) are not cross-compatible with older platforms.
- Socket: LGA 1851 with Intel® 800 Series Chipset.
- Thermal solution: Processors require a thermal solution for a 125W Processor Base Power. Fan heatsinks may be used between LGA1700 and LGA1851 sockets as they are mechanically similar for thermal solution usage. However, LGA1700 and LGA1851 have different pin count and are not cross compatible with older generation of processors. LGA 1851 should only be used with Intel® Core™ Ultra Desktop Processors (Series 2). Users are required to check the power requirements of the respective processors to ensure heatsink is compatible.
- Max Operating Temperature: 105 degrees Celsius.
- Memory: Max memory size refers to the maximum memory capacity supported by the processor, and is dependent on the memory type.
| Related topics |
| Technical Resources: Intel® Core™ Ultra Processors |
| Intel® Core™ Ultra Desktop Processors (Series 2) Product Brief |
| Warranty Guide for Intel® Processors |