Processor U300E vs Ultra 7 251HX
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 244 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Arrow Lake | no data |
| Designer | Intel | Intel |
| Manufacturer | no data | Intel |
| Architecture codename | Arrow Lake-HX (2025−2026) | Raptor Lake-U (2023−2025) |
| Release date | 1 April 2026 (less than a year ago) | 4 January 2023 (3 years ago) |
Detailed specifications
Basic parameters of Core Ultra 7 251HX and Processor U300E: 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 | 18 (Octadeca-Core) | 5 (Penta-Core) |
| Threads | 18 | 6 |
| Base clock speed | 2.5 GHz | 1.1 GHz |
| Boost clock speed | 5.1 GHz | 4.3 GHz |
| L1 cache | no data | 80K (per core) |
| L2 cache | 30 MB | 1.25 MB (per core) |
| L3 cache | 30 MB | 8 MB (shared) |
| Chip lithography | 3 nm | 10 nm |
| 64 bit support | + | + |
| Windows 11 compatibility | no data | + |
Compatibility
Information on Core Ultra 7 251HX and Processor U300E 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 | no data | 1 |
| Socket | no data | Intel BGA 1744 |
| Power consumption (TDP) | no data | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core Ultra 7 251HX and Processor U300E. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | no data | + |
| TSX | - | + |
Security technologies
Core Ultra 7 251HX and Processor U300E technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core Ultra 7 251HX and Processor U300E are enumerated here.
| VT-d | no data | + |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core Ultra 7 251HX and Processor U300E. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR4, DDR5 Dual-channel |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel Graphics 4-Core iGPU (Meteor / Arrow Lake) (300 - 1800 MHz) | Intel UHD Graphics 48EU |
Peripherals
Specifications and connection of peripherals supported by Core Ultra 7 251HX and Processor U300E.
| PCIe version | no data | 4.0 |
| PCI Express lanes | no data | 8 |
Pros & cons summary
| Recency | 1 April 2026 | 4 January 2023 |
| Physical cores | 18 | 5 |
| Threads | 18 | 6 |
| Chip lithography | 3 nm | 10 nm |
Ultra 7 251HX has an age advantage of 3 years, 260% more physical cores and 200% more threads, and a 233% more advanced lithography process.
We couldn't decide between Intel Core Ultra 7 251HX and Intel Processor U300E. We've got no test results to judge.
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