Intel Core Ultra 7 255H vs Intel Core i9 14900HX
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Compared 2 processors: Intel Core Ultra 7 255H, vs Intel Core i9 14900HX. Below are specs, tests, pros and cons for each device
Review
Single-Thread Perf.
Single-Core Benchmark Score
Multi-Thread Perf.
Multi-Core Benchmark Score
Energy Efficiency
Chip Power Efficiency
Integrated Graphics
iGPU Performance in Games & 3D
Tests & specs
Specs & test comparisonBenchmarks
| Integer Math | n/a | 162.6 GOps/s |
| Floating-Point Math | n/a | 116.1 GOps/s |
| Prime Number Search | n/a | 200 M primes/s |
| Random String Sort | n/a | 62.8 M strings/s |
| Data Encryption | n/a | 33.8 GB/s |
| Data Compression | n/a | 560.3 MB/s |
| Physics | n/a | 2753 frames/s |
| Extended Instructions | n/a | 324 M matrices/s |
| File Compression | 1270 MB/s | 1420 MB/s |
| Clang Compilation | 103.2 KLines/s | 173.5 KLines/s |
| HTML5 Browser | 399 pages/s | 463.6 pages/s |
| PDF Rendering | 443.6 MP/sec | 508.4 MP/sec |
| Text Processing | 283.7 pages/s | 287.7 pages/s |
| Background Blur | 62.4 frames/s | 54.6 frames/s |
| Photo Processing | 144.8 frames/s | 154.7 frames/s |
| Ray Tracing | 24 MP/sec | 39.9 MP/sec |
Blender
Performance/Watt
| Geekbench 6 Multi / W | 540.1 PPW | 335.1 PPW |
| PassMark CPU / W | n/a | 825.8 PPW |
| Cinebench 2024 / W | 36.7 PPW | 32.4 PPW |
| Blender / W | n/a | 6.44 PPW |
General Info
| Manufacturer | Intel | Intel |
| Announced | January, 6, 2025 | January, 9, 2024 |
| Type | Laptop use | Laptop use |
| Architecture | x86-64 | x86-64 |
| Codename | Arrow Lake | Raptor Lake Refresh |
| Model number | 255H | i9-14900HX |
| Integrated GPU | Arc Graphics 140T | UHD Graphics (32EU) |
Processor
| Cores | 6 | 8 |
| Threads | 6 | 16 |
| Frequency | 2.0 GHz | 2.2 GHz |
| Max Frequency (Turbo) | 5.1 GHz | 5.8 GHz |
| Cores | 10 | 16 |
| Threads | 10 | 16 |
| Frequency | 1.5 GHz | 1.6 GHz |
| Max Frequency (Turbo) | 4.4 GHz | 4.1 GHz |
| Cores count | 16 | 24 |
| Threads count | 16 | 32 |
| Bus frequency | 100 MHz | 100 MHz |
| Multiplier | 20x | 22x |
| L1 cache | 112 KB/core | 80 KB/core |
| L2 cache | 2000 KB/core | 2000 KB/core |
| L3 Cache | 24 MB total | 36 MB total |
| Unlocked multiplier | No | Yes |
Package
| Process tech. | 3 nm | 10 nm |
| Power (TDP) | 20-28 W | 45-55 W |
| Max TDP (Boost) | 115 W | 157 W |
| Socket | FCBGA-2049 | BGA-1964 |
| Critical temp. | 110 °C | 100 °C |
Memory Support
| Memory Type | - LPDDR5-8400 - LPDDR5x-8400 - DDR5-6400 |
- DDR5-5600 - DDR4-3200 |
| Max Size | 128 GB | 192 GB |
| Channels | 2 | 2 |
| ECC support | No | Yes |
| Max memory bandwidth | n/a | 89.6 GB |
Other
| PCIe Version | 5.0 | 5.0 |
| Max PCIe Lanes | 28 | 20 |
Results
No clear favorite identified yet; updates may follow as new data arrives.
Survey
Total Votes: 0
