Intel Core i5-8400 vs Intel Core i9-14900KS
31.1Single-core92.1
28.6Multi-core96.7
27.2Gamingspec-based74.4
2 spec wins — Intel Core i5-840019 spec wins — Intel Core i9-14900KS
InnoReviews verdict
Intel Core i9-14900KS wins this desktop processor face-off, 89.8 to 29, pulling ahead mainly in multi-core (+68) and single-core (+61). 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
- 57% lower Base TDP: 65 W vs 150 W
- Has Cooler included — the other doesn't
- Lower launch price: $182 vs $689
Reasons to pick the Intel Core i9-14900KS
- Stronger single-core score: 92 vs 31
- Stronger multi-core score: 97 vs 29
- 2033% higher L2 cache: 32 MB vs 2 MB
- 590% higher PassMark: 63,500 vs 9,200
- 548% higher Cinebench R23 (multi): 41,500 vs 6,400
General
| Spec | Intel Core i5-8400 | Intel Core i9-14900KS |
|---|---|---|
| Announced | 2017 | 2024 |
| Socket | LGA1151-v2 | LGA1700 |
| Process | 14 nm | 10 nm+29% |
| Base TDP | 65 W+57% | 150 W |
| Max turbo power | — | 253 W |
| Unlocked multiplier | No | Yes |
| Cooler included | Yes | No |
Cores & Clocks
| Spec | Intel Core i5-8400 | Intel Core i9-14900KS |
|---|---|---|
| Cores | 6 | 24+300% |
| Performance cores | 6 | 8+33% |
| Efficiency cores | 0 | 16 |
| Threads | 6 | 32+433% |
| Base clock | 2.8 GHz | 3.2 GHz+14% |
| Boost clock | 4 GHz | 6.2 GHz+55% |
| L2 cache | 2 MB | 32 MB+2033% |
| L3 cache | 9 MB | 36 MB+300% |
Integrated GPU
| Spec | Intel Core i5-8400 | Intel Core i9-14900KS |
|---|---|---|
| iGPU | Intel UHD Graphics 630 | Intel UHD Graphics 770 |
| iGPU clock | 1,050 MHz | 1,650 MHz |
Memory
| Spec | Intel Core i5-8400 | Intel Core i9-14900KS |
|---|---|---|
| Memory support | DDR4-2666 | DDR5-5600 / DDR4-3200 |
| Max memory | 64 GB | 192 GB+200% |
| Memory channels | 2 | 2 |
Platform
| Spec | Intel Core i5-8400 | Intel Core i9-14900KS |
|---|---|---|
| PCIe version | 3 | 5+67% |
| CPU PCIe lanes | 16 | 20+25% |
Benchmarks
| Spec | Intel Core i5-8400 | Intel Core i9-14900KS |
|---|---|---|
| Geekbench 6 (single) | 1,370Bottom 22% | 3,250+137%Top 9% |
| Geekbench 6 (multi) | 4,900Bottom 19% | 21,800+345%Top 6% |
| Cinebench R23 (single) | 1,150Bottom 22% | 2,360+105%Top 3% |
| Cinebench R23 (multi) | 6,400Bottom 19% | 41,500+548%Top 6% |
| PassMark | 9,200Bottom 14% | 63,500+590%Top 5% |
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