Intel Core i5-8400 vs Intel Core i7-11700K
31.1Single-core47.9
28.6Multi-core46.8
27.2Gaming47.4
2 spec wins — Intel Core i5-840018 spec wins — Intel Core i7-11700K
InnoReviews verdict
Intel Core i7-11700K wins this desktop processor face-off, 47.3 to 29, pulling ahead mainly in gaming (+20) and Multi-core (+18). Intel Core i5-8400 still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the Intel Core i5-8400
- 48% lower Base TDP: 65 W vs 125 W
- Has Cooler included — the other doesn't
- Lower launch price: $182 vs $399
Reasons to pick the Intel Core i7-11700K
- Stronger Single-core score: 48 vs 31
- Stronger Multi-core score: 47 vs 29
- Stronger gaming score: 47 vs 27
- 168% higher PassMark: 24,700 vs 9,200
- 167% higher threads: 16 vs 6
General
| Spec | Intel Core i5-8400 | Intel Core i7-11700K |
|---|---|---|
| Announced | 2017 | 2021 |
| Socket | LGA1151-v2 | LGA1200 |
| Process | 14 nm | 14 nm |
| Base TDP | 65 W+48% | 125 W |
| Max turbo power | — | 251 W |
| Unlocked multiplier | No | Yes |
| Cooler included | Yes | No |
Cores & Clocks
| Spec | Intel Core i5-8400 | Intel Core i7-11700K |
|---|---|---|
| Cores | 6 | 8+33% |
| Performance cores | 6 | 8+33% |
| Efficiency cores | 0 | 0 |
| Threads | 6 | 16+167% |
| Base clock | 2.8 GHz | 3.6 GHz+29% |
| Boost clock | 4 GHz | 5 GHz+25% |
| L2 cache | 2 MB | 4 MB+167% |
| L3 cache | 9 MB | 16 MB+78% |
Integrated GPU
| Spec | Intel Core i5-8400 | Intel Core i7-11700K |
|---|---|---|
| iGPU | Intel UHD Graphics 630 | Intel UHD Graphics 750 |
| iGPU clock | 1,050 MHz | 1,300 MHz+24% |
Memory
| Spec | Intel Core i5-8400 | Intel Core i7-11700K |
|---|---|---|
| Memory support | DDR4-2666 | DDR4-3200 |
| Max memory | 64 GB | 128 GB+100% |
| Memory channels | 2 | 2 |
Platform
| Spec | Intel Core i5-8400 | Intel Core i7-11700K |
|---|---|---|
| PCIe version | 3 | 4+33% |
| CPU PCIe lanes | 16 | 20+25% |
Benchmarks
| Spec | Intel Core i5-8400 | Intel Core i7-11700K |
|---|---|---|
| Geekbench 6 (single) | 1,370Top 75% | 1,800+31%Top 46% |
| Geekbench 6 (multi) | 4,900Top 78% | 9,600+96%Top 42% |
| Cinebench R23 (single) | 1,150Top 75% | 1,550+35%Top 42% |
| Cinebench R23 (multi) | 6,400Top 77% | 15,000+134%Top 36% |
| PassMark | 9,200Top 80% | 24,700+168%Top 39% |
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