Ultra 5 225F vs i7-1255U
Primary details
Comparing Core i7-1255U and Core Ultra 5 225F processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 895 | not rated |
| Place by popularity | 74 | not in top-100 |
| Market segment | Laptop | Desktop processor |
| Series | Intel Alder Lake-M | no data |
| Power efficiency | 53.82 | no data |
| Architecture codename | Alder Lake-U (2022) | Arrow Lake-S (2024−2025) |
| Release date | 23 February 2022 (2 years ago) | January 2025 |
Detailed specifications
Core i7-1255U and Core Ultra 5 225F 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 | 10 (Deca-Core) | 10 (Deca-Core) |
| Threads | 12 | 10 |
| Base clock speed | 1.7 GHz | 3.3 GHz |
| Boost clock speed | 4.7 GHz | 4.9 GHz |
| L1 cache | 80K (per core) | 112 KB (per core) |
| L2 cache | 1.25 MB (per core) | 3 MB (per core) |
| L3 cache | 12 MB (shared) | 21 MB (shared) |
| Chip lithography | 10 nm | 3 nm |
| Die size | no data | 243 mm2 |
| Maximum core temperature | 100 °C | no data |
| Number of transistors | no data | 17,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
Compatibility
Information on Core i7-1255U and Core Ultra 5 225F 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 | Intel BGA 1744 | 1851 |
| Power consumption (TDP) | 15 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-1255U and Core Ultra 5 225F. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| FMA | + | - |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | + | + |
| TSX | + | + |
Security technologies
Core i7-1255U and Core Ultra 5 225F technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i7-1255U and Core Ultra 5 225F are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-1255U and Core Ultra 5 225F. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4, DDR5 | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel Iris Xe Graphics G7 96EUs ( - 1250 MHz) | N/A |
Peripherals
Specifications and connection of peripherals supported by Core i7-1255U and Core Ultra 5 225F.
| PCIe version | 4.0 | 5.0 |
| PCI Express lanes | 20 | 20 |
Pros & cons summary
| Threads | 12 | 10 |
| Chip lithography | 10 nm | 3 nm |
| Power consumption (TDP) | 15 Watt | 65 Watt |
i7-1255U has 20% more threads, and 333.3% lower power consumption.
Ultra 5 225F, on the other hand, has a 233.3% more advanced lithography process.
We couldn't decide between Core i7-1255U and Core Ultra 5 225F. We've got no test results to judge.
Be aware that Core i7-1255U is a notebook processor while Core Ultra 5 225F is a desktop one.
Should you still have questions on choice between Core i7-1255U and Core Ultra 5 225F, ask them in Comments section, and we shall answer.
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