Ultra 5 250KF Plus vs Xeon Phi 7285
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Desktop processor |
| Series | Intel Xeon Phi | no data |
| Designer | Intel | Intel |
| Manufacturer | Intel | TSMC |
| Architecture codename | Knights Mill (2017) | Arrow Lake Refresh (2026) |
| Release date | 1 December 2017 (8 years ago) | 11 March 2026 (less than a year ago) |
| Launch price (MSRP) | no data | $184 |
Detailed specifications
Xeon Phi 7285 and Core Ultra 5 250KF Plus basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 68 (Octahexaconta-Core) | 18 (Octadeca-Core) |
| Threads | 272 | 18 |
| Base clock speed | 1.3 GHz | 4.2 GHz |
| Boost clock speed | 1.4 GHz | 5.3 GHz |
| Multiplier | 15 | no data |
| L1 cache | 32K (per core) | 192 KB (per core) |
| L2 cache | 512K (per core) | 3 MB (per core) |
| L3 cache | 0 KB (shared) | 30 MB (shared) |
| Chip lithography | 14 nm | 3 nm |
| Die size | no data | 243 mm2 |
| Maximum core temperature | 72 °C | no data |
| Number of transistors | 8,000 million | 17,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | - | + |
| VID voltage range | 0.550-1.2V | no data |
Compatibility
Information on Xeon Phi 7285 and Core Ultra 5 250KF Plus compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | 1 | 1 |
| Socket | SVLCLGA3647 | 1851 |
| Power consumption (TDP) | 250 Watt | 125 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon Phi 7285 and Core Ultra 5 250KF Plus. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® AVX-512 | no data |
| AES-NI | + | + |
| AVX | + | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | 2.0 | no data |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| SIPP | - | + |
Security technologies
Xeon Phi 7285 and Core Ultra 5 250KF Plus technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | + |
| EDB | + | no data |
| SGX | - | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon Phi 7285 and Core Ultra 5 250KF Plus are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon Phi 7285 and Core Ultra 5 250KF Plus. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2400 | DDR5 |
| Maximum memory size | 384 GB | no data |
| Max memory channels | 6 | no data |
| Maximum memory bandwidth | 115.212 GB/s | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | N/A |
Peripherals
Specifications and connection of peripherals supported by Xeon Phi 7285 and Core Ultra 5 250KF Plus.
| PCIe version | 3.0 | 5.0 |
| PCI Express lanes | 36 | 24 |
Pros & cons summary
| Recency | 1 December 2017 | 11 March 2026 |
| Physical cores | 68 | 18 |
| Threads | 272 | 18 |
| Chip lithography | 14 nm | 3 nm |
| Power consumption (TDP) | 250 Watt | 125 Watt |
Xeon Phi 7285 has 278% more physical cores and 1411% more threads.
Ultra 5 250KF Plus, on the other hand, has an age advantage of 8 years, a 367% more advanced lithography process, and 100% lower power consumption.
We couldn't decide between Intel Xeon Phi 7285 and Intel Core Ultra 5 250KF Plus. We've got no test results to judge.
Be aware that Xeon Phi 7285 is a server/workstation processor while Core Ultra 5 250KF Plus is a desktop one.
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