[ INTEL ]
Processors
Intel Core Ultra 7 251HX
Overall Score
75/100
[ EXPERT VERDICT · SUMMARY ]
Intel Core Ultra 7 251HX is an engineering-tested processors achieving an overall rating of 75/100. It is positioned for balanced everyday compute and power efficiency.
Benchmark Performance Scores
Normalized 0–100 Scale
Efficiency
Rating: Good
79/100
Performance
Rating: Very Good
83/100
Detailed Technical Specifications
CPU
| Specification | Value |
|---|---|
| Base Frequency (E) | 2.5 GHz |
| Base Frequency (P) | 2.9 GHz |
| Bus Frequency | 100 MHz |
| E-Cores | 12 |
| E-Threads | 12 |
| L1 Cache | 192K (per core) |
| L2 Cache | 2MB (per core) |
| L3 Cache | 30MB (shared) |
| Multiplier | 29x |
| P-Cores | 6 |
| P-Threads | 6 |
| Total Cores | 18 |
| Total Threads | 18 |
| Turbo Boost Frequency (E) | 4.5 GHz |
| Turbo Boost Frequency (P) | 5.1 GHz |
| Unlocked Multiplier | Yes |
General
| Specification | Value |
|---|---|
| Codename | Arrow Lake |
| Instruction Set | x86-64 |
| Integrated GPU | Arc Graphics (4-Cores) |
| Model number | 251HX |
| Released | April 1, 2026 |
| Type | Laptop |
| Vendor | Intel |
Memory Support
| Specification | Value |
|---|---|
| ECC Support | No |
| Max. Memory Bandwidth | 102.4 GB/s |
| Max. Memory Size | 256 GB |
| Memory Channels | 2 |
| Memory Types | - DDR5-6400 |
Misc
| Specification | Value |
|---|---|
| Official Site | Intel Core Ultra 7 251HX official page |
| PCI Express Lanes | 24 |
| PCI Express Version | 5.0 |
Package
| Specification | Value |
|---|---|
| Fabrication Process | 3 nm |
| Max. Boost TDP (PL2) | 160 W |
| Peak Temperature | 105°C |
| Socket | FCBGA-2114 |
| TDP (PL1) | 45-55 W (configurable) |
PassMark
| Specification | Value |
|---|---|
| Data compression | 512.7 MBytes/sec |
| Data encryption | 39.2 GBytes/sec |
| Extended instructions | 39.9B Matrices/sec |
| Find prime numbers | 440M Primes/sec |
| Floating point math | 152.1 GOps/sec |
| Integer math | 122 GOps/sec |
| Physics | 2500 Frames/sec |
| Random string sorting | 61.6M Strings/sec |
Performance Per Watt
| Specification | Value |
|---|---|
| Cinebench 2024 / Watt | 32 PPW |
| Geekbench 6 Multi / Watt | 277.8 PPW |
| Passmark CPU Mark / Watt | 849.6 PPW |
iGPU
| Specification | Value |
|---|---|
| Execution Units | 64 |
| GPU Base Clock | 300 MHz |
| GPU Boost Clock | 1800 MHz |
| Integrated Graphics | Arc Graphics (4-Cores) |
| ROPs | 16 |
| Shading Units | 512 |
| TGP | 14 W |
| TMUs | 32 |
Strengths & Limitations
Key Advantages
- Comprehensive positive benchmark metrics recorded.
Key Considerations
- No major hardware limitations flagged during benchmark run.
Direct Competitors & Alternatives
INTEL
Intel Core Ultra 7 270K Plus
98/100
Compare →
AMD
AMD Ryzen 9 9950X3D2
97/100
Compare →
APPLE
Apple M5 Max (40-core GPU)
97/100
Compare →
APPLE
Apple M5 Pro (18-Core)
97/100
Compare →
Methodology, Provenance & Verification
Score version 2026.1 · Data verified 2026-08-26 · Source: official manufacturer datasheets and standardized reproducible benchmark suites (Geekbench 6, Cinebench R24, 3DMark).