Intel Core i7 8700K vs Intel Core i5 9400
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out 100
VS
31
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Compared 2 processors: Intel Core i7 8700K, vs Intel Core i5 9400. 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 | 45.9 GOps/s | 26.5 GOps/s |
| Floating-Point Math | 28.5 GOps/s | 22.8 GOps/s |
| Prime Number Search | 39 M primes/s | 36 M primes/s |
| Random String Sort | 25.3 M strings/s | 16.5 M strings/s |
| Data Encryption | 4.8 GB/s | 2.9 GB/s |
| Data Compression | 199.1 MB/s | 132.9 MB/s |
| Physics | 812 frames/s | 624 frames/s |
| Extended Instructions | 135 M matrices/s | 117 M matrices/s |
| File Compression | 509.8 MB/s | 423.9 MB/s |
| Clang Compilation | 52.2 KLines/s | 38.7 KLines/s |
| HTML5 Browser | 149.8 pages/s | 114.6 pages/s |
| PDF Rendering | 210.4 MP/sec | 167 MP/sec |
| Text Processing | 165.3 pages/s | 141.1 pages/s |
| Background Blur | 38 frames/s | 35.1 frames/s |
| Photo Processing | 61.1 frames/s | 49.1 frames/s |
| Ray Tracing | 10.8 MP/sec | 7.01 MP/sec |
Blender
Performance/Watt
| Geekbench 6 Multi / W | 72.9 PPW | 81.8 PPW |
| PassMark CPU / W | 143 PPW | 144.5 PPW |
| Cinebench 2024 / W | 5.3 PPW | n/a |
| Blender / W | 1.34 PPW | 1.23 PPW |
General Info
| Manufacturer | Intel | Intel |
| Announced | October, 5, 2017 | January, 7, 2019 |
| Type | PC use | PC use |
| Architecture | x86-64 | x86-64 |
| Codename | Coffee Lake | Coffee Lake |
| Model number | i7-8700K | i5-9400 |
| Integrated GPU | UHD Graphics 630 | UHD Graphics 630 |
Processor
| Cores | 6 | 6 |
| Threads | 12 | 6 |
| Frequency | 3.7 GHz | 2.9 GHz |
| Max Frequency (Turbo) | 4.7 GHz | 4.1 GHz |
| Cores count | 6 | 6 |
| Threads count | 12 | 6 |
| Bus frequency | 100 MHz | 100 MHz |
| Bandwidth | 8 GT/s | 8 GT/s |
| Multiplier | 37x | 29x |
| L1 cache | 64 KB/core | 64 KB/core |
| L2 cache | 256 KB/core | 256 KB/core |
| L3 Cache | 12 MB total | 9 MB total |
| Unlocked multiplier | Yes | No |
Package
| Process tech. | 14 nm | 14 nm |
| Power (TDP) | 95 W | 65 W |
| Socket | LGA-1151 | LGA-1151 |
| Critical temp. | 100 °C | 100 °C |
Memory Support
| Memory Type | DDR4-2666 | DDR4-2666 |
| Max Size | 128 GB | 128 GB |
| Channels | 2 | 2 |
| ECC support | No | No |
| Max memory bandwidth | 41.6 GB | 41.6 GB |
Other
| PCIe Version | 3.0 | 3.0 |
| Max PCIe Lanes | 16 | 16 |
| Channels | 41422 | 41422 |
Results
No clear favorite identified yet; updates may follow as new data arrives.
Survey
Total Votes: 0
