Intel Core i7 8700 vs Intel Core Ultra 7 251HX
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Compared 2 processors: Intel Core i7 8700, vs Intel Core Ultra 7 251HX. 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 | 44.9 GOps/s | n/a |
| Floating-Point Math | 27.9 GOps/s | n/a |
| Prime Number Search | 35 M primes/s | n/a |
| Random String Sort | 24 M strings/s | n/a |
| Data Encryption | 4.5 GB/s | n/a |
| Data Compression | 187.5 MB/s | n/a |
| Physics | 734 frames/s | n/a |
| Extended Instructions | 124 M matrices/s | n/a |
| File Compression | 440.7 MB/s | n/a |
| Clang Compilation | 49.1 KLines/s | n/a |
| HTML5 Browser | 137.6 pages/s | n/a |
| PDF Rendering | 181.5 MP/sec | n/a |
| Text Processing | 150.9 pages/s | n/a |
| Background Blur | 33.3 frames/s | n/a |
| Photo Processing | 51 frames/s | n/a |
| Ray Tracing | 10.6 MP/sec | n/a |
Blender
Performance/Watt
| Geekbench 6 Multi / W | 96 PPW | 268.6 PPW |
| PassMark CPU / W | 196.7 PPW | n/a |
| Cinebench 2024 / W | 5.6 PPW | 32 PPW |
| Blender / W | 1.69 PPW | n/a |
General Info
| Manufacturer | Intel | Intel |
| Announced | October, 5, 2017 | April, 1, 2026 |
| Type | PC use | Laptop use |
| Architecture | x86-64 | x86-64 |
| Codename | Coffee Lake | Arrow Lake |
| Model number | i7-8700 | 251HX |
| Integrated GPU | UHD Graphics 630 | Arc Graphics (4-Cores) |
Processor
| Cores | 6 | 8 |
| Threads | 12 | 6 |
| Frequency | 3.2 GHz | Array |
| Max Frequency (Turbo) | 4.6 GHz | 5.1 GHz |
| Cores | n/a | 12 |
| Threads | n/a | 12 |
| Frequency | n/a | 2.5 GHz |
| Max Frequency (Turbo) | n/a | 4.5 GHz |
| Cores count | 6 | 18 |
| Threads count | 12 | 18 |
| Bus frequency | 100 MHz | 100 MHz |
| Bandwidth | 8 GT/s | n/a |
| Multiplier | 32x | 29x |
| L1 cache | 64 KB/core | 192 KB/core |
| L2 cache | 256 KB/core | 2000 KB/core |
| L3 Cache | 12 MB total | 30 MB total |
| Unlocked multiplier | No | Yes |
Package
| Process tech. | 14 nm | 3 nm |
| Power (TDP) | 65 W | 45-55 W |
| Max TDP (Boost) | n/a | 160 W |
| Socket | LGA-1151 | FCBGA-2114 |
| Critical temp. | 100 °C | 105 °C |
Memory Support
| Memory Type | DDR4-2666 | DDR5-6400 |
| Max Size | 128 GB | 256 GB |
| Channels | 2 | 2 |
| ECC support | No | No |
| Max memory bandwidth | 41.6 GB | n/a |
Other
| PCIe Version | 3.0 | 5.0 |
| Max PCIe Lanes | 16 | 24 |
| Channels | 41422 | n/a |
Results
After analyzing the data, we consider Intel Core i7 8700 the clear winner in this comparison.
Survey
Total Votes: 0
