Intel Core Ultra 9 275HX vs Intel Core i9 11900K
79
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55
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Compared 2 processors: Intel Core Ultra 9 275HX, vs Intel Core i9 11900K. 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 | 157.3 GOps/s | 89.4 GOps/s |
| Floating-Point Math | 196.3 GOps/s | 52.9 GOps/s |
| Prime Number Search | 449 M primes/s | 68 M primes/s |
| Random String Sort | 77 M strings/s | 37.9 M strings/s |
| Data Encryption | 48.7 GB/s | 16 GB/s |
| Data Compression | 624.8 MB/s | 331.1 MB/s |
| Physics | 3093 frames/s | 1054 frames/s |
| Extended Instructions | 485 M matrices/s | 234 M matrices/s |
| File Compression | 1480 MB/s | 862.2 MB/s |
| Clang Compilation | 216.2 KLines/s | 89.5 KLines/s |
| HTML5 Browser | 435.5 pages/s | 228.1 pages/s |
| PDF Rendering | 545.5 MP/sec | 331.5 MP/sec |
| Text Processing | 344.8 pages/s | 241.7 pages/s |
| Background Blur | 78.6 frames/s | 54.3 frames/s |
| Photo Processing | 156.4 frames/s | 89.4 frames/s |
| Ray Tracing | 46.2 MP/sec | 20.7 MP/sec |
Blender
Performance/Watt
| Geekbench 6 Multi / W | 371.8 PPW | 89.6 PPW |
| PassMark CPU / W | 1027.3 PPW | 200.5 PPW |
| Cinebench 2024 / W | 40.4 PPW | 5.6 PPW |
| Blender / W | 6.54 PPW | 1.7 PPW |
General Info
| Manufacturer | Intel | Intel |
| Announced | January, 6, 2025 | March, 16, 2021 |
| Type | Laptop use | PC use |
| Architecture | x86-64 | x86-64 |
| Codename | Arrow Lake | Rocket Lake |
| Model number | 275HX | i9-11900K |
| Integrated GPU | Arc Graphics (4-Cores) | UHD Graphics 750 |
Processor
| Cores | 8 | 8 |
| Threads | 8 | 16 |
| Frequency | 2.7 GHz | 3.5 GHz |
| Max Frequency (Turbo) | 5.4 GHz | 5.3 GHz |
| Cores | 16 | n/a |
| Threads | 16 | n/a |
| Frequency | 2.1 GHz | n/a |
| Max Frequency (Turbo) | 4.6 GHz | n/a |
| Cores count | 24 | 8 |
| Threads count | 24 | 16 |
| Bus frequency | 100 MHz | 100 MHz |
| Bandwidth | n/a | 8 GT/s |
| Multiplier | 27x | 35x |
| L1 cache | 112 KB/core | 64 KB/core |
| L2 cache | 2000 KB/core | 512 KB/core |
| L3 Cache | 36 MB total | 16 MB total |
| Unlocked multiplier | Yes | Yes |
Package
| Process tech. | 3 nm | 14 nm |
| Power (TDP) | 45-55 W | 125 W |
| Max TDP (Boost) | 160 W | n/a |
| Socket | FCBGA-2114 | LGA-1200 |
| Critical temp. | 105 °C | 100 °C |
Memory Support
| Memory Type | DDR5-6400 | DDR4-3200 |
| Max Size | 192 GB | 128 GB |
| Channels | 2 | 2 |
| ECC support | Yes | No |
| Max memory bandwidth | n/a | 50 GB |
Other
| PCIe Version | 5.0 | 4.0 |
| Max PCIe Lanes | 24 | 20 |
Results
After analyzing the data, we consider Intel Core Ultra 9 275HX the clear winner in this comparison.
Survey
Total Votes: 0
