Intel Core i9 9900KS 8-core LGA1151
A guaranteed 5.0GHz all-core turbo frequency out of the box on its 8-core, 16-thread Coffee Lake architecture eliminates manual overclocking for immediate peak performance. This Special Edition chip is factory-binned for stability at high clocks on the mature LGA1151 platform, though it demands robust cooling for its 127W TDP. It's best for enthusiasts and competitive gamers on Z390 motherboards who want the absolute highest single-thread speed from that generation without silicon lottery risks.
Cores 8
Threads 16
Boost Clock 5000 MHz
L3 Cache 16 MB
TDP 127 W
Socket LGA1151
Integrated Graphics Intel UHD Graphics 630
64 Overall Score
No current retailer price
Snapshot
Pros & Cons
Pros
- Strong feature (83rd percentile) 83rd
- Strong single thread (81st percentile) 81st
- Strong ai (77th percentile) 77th
- Strong multi thread (75th percentile) 75th
Cons
The proof
Performance
Specifications
Full Specifications
Processor
| Brand | Intel |
| Series | Core i9 |
| Model | 9900KS |
| Codename | Coffee Lake |
| Class | desktop |
| Process | 14 |
Cores & Clocks
| Cores | 8 |
| Threads | 16 |
| Base Clock | 4000 |
| Boost Clock | 5000 |
Cache
| L2 Cache | 2 |
| L3 Cache | 16 MB |
Performance
| PassMark Multi | 19368 |
| PassMark Single | 3025 |
Memory
| Memory Type | DDR4 |
| Max Memory | 128 |
Platform & Power
| Socket | LGA1151 |
| TDP | 127 |
| Unlocked | Yes |
Graphics & AI
| Integrated Graphics | Intel UHD Graphics 630 |
vs Competition
| Spec | Intel Core i9 9900KS | AMD Ryzen 7 9800X3D | Dell Xeon E5-2637 V2 | SMC EPYC 9555P | CG CHIPS GATE EPYC 6GK7443-1EX30-0XE0 1PC New 6GK7443-1EX30-0XE0 Communications Processor | HP Xeon P67080-B21 |
|---|---|---|---|---|---|---|
| Cores | 8 | 8 | 32 | 64 | 24 | 16 |
| Threads | 16 | 16 | 64 | 128 | 48 | 32 |
| Boost Clock Mhz | 5000 | 5200 | 3500 | 4400 | 4000 | 3900 |
| L3 Cache Mb | 16 | 96 | 256 | 256 | 128 | 37.5 |
| Tdp W | 127 | 120 | 200 | 360 | 200 | 195 |
| Socket | LGA1151 | AM5 | Socket A/Socket 462 (PGA 462) | AMD Socket SP5 | AMD Socket SP3 | LGA 4677 |
| Integrated Graphics | Intel UHD Graphics 630 | AMD Radeon Graphics | No | - | - | No |
| Compare | Compare | Compare | Compare | Compare |
| Product | AI | Feature | Platform | Efficiency | Multi Thread | Social Proof | Single Thread |
|---|---|---|---|---|---|---|---|
| Intel Core i9 9900KS | 76.5 | 83.3 | 44.6 | 69.3 | 75.4 | 75 | 81.1 |
| AMD Ryzen 7 9800X3D Compare | 91.3 | 98.5 | 95.1 | 87.7 | 90 | 96.6 | 95.7 |
| Dell Xeon E5-2637 V2 Compare | 99.1 | 90.7 | 76.2 | 97.4 | 99.2 | 1.5 | 89.3 |
| SMC EPYC 9555P Compare | 99.3 | 76.9 | 96.8 | 90.7 | 99.5 | 1.5 | 88.7 |
| CG CHIPS GATE EPYC 6GK7443-1EX30-0XE0 1PC New 6GK7443-1EX30-0XE0 Communications Processor Compare | 94.8 | 76.9 | 84.1 | 83.8 | 94.4 | 38.3 | 80.2 |
| HP Xeon P67080-B21 Compare | 91.7 | 76.9 | 90.7 | 78.2 | 90.9 | 1.5 | 80.4 |
Price
Value & Pricing
We started tracking prices for this product on Jun 14, 2026. The chart appears once we have more data.
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
