Apple M2 vs Ultra 7 251HX
Aggregate performance score
Core Ultra 7 251HX outperforms M2 by a whopping 226% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 244 | 1109 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Arrow Lake | Apple Apple M-Series |
| Power efficiency | no data | 17.94 |
| Designer | Intel | Apple |
| Architecture codename | Arrow Lake-HX (2025−2026) | no data |
| Release date | 1 April 2026 (less than a year ago) | 10 June 2022 (4 years ago) |
Detailed specifications
Basic parameters of Core Ultra 7 251HX and M2: 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) | 8 (Octa-Core) |
| Threads | 18 | 8 |
| Base clock speed | 2.5 GHz | 2.424 GHz |
| Boost clock speed | 5.1 GHz | 3.48 GHz |
| L1 cache | no data | 2 MB |
| L2 cache | 30 MB | 20 MB |
| L3 cache | 30 MB | no data |
| Chip lithography | 3 nm | 5 nm |
| Number of transistors | no data | 20000 Million |
| 64 bit support | + | + |
Compatibility
Information on Core Ultra 7 251HX and M2 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.
| Power consumption (TDP) | no data | 20 Watt |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel Graphics 4-Core iGPU (Meteor / Arrow Lake) (300 - 1800 MHz) | Apple M2 10-Core GPU ( - 1398 MHz) |
Synthetic benchmarks
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance. Other than that, Passmark measures multi-core performance.
Pros & cons summary
| Performance score | 28.50 | 8.74 |
| Recency | 1 April 2026 | 10 June 2022 |
| Physical cores | 18 | 8 |
| Threads | 18 | 8 |
| Chip lithography | 3 nm | 5 nm |
Ultra 7 251HX has a 226% higher aggregate performance score, an age advantage of 3 years, 125% more physical cores and 125% more threads, and a 67% more advanced lithography process.
The Intel Core Ultra 7 251HX is our recommended choice as it beats the Apple M2 in performance tests.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
