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Intel 11th Gen Intel Core i9 11900K vs Intel Core Ultra 9 285K: Comparison
Intel 11th Gen Intel Core i9 11900K and Intel Core Ultra 9 285K separate most on l2 cache: Intel 11th Gen Intel Core i9 11900K at 2 MB, Intel Core Ultra 9 285K at 40 MB, 95% in favour of Intel Core Ultra 9 285K. L3 Cache splits them by another 56%, again favouring Intel Core Ultra 9 285K. They match on 5 other specifications, including form factor, market segment and base power.
Specs
| Specification |  |  |
|---|---|---|
| Brand | Intel | Intel |
| Form Factor | Desktop | Desktop |
| Model Number | 11900K | 285K |
| Codename | Rocket Lake | Arrow Lake-S |
| Core/Thread Count | 8 Core / 16 Thread | 24 Core (8P+16E) / 24 Thread |
| TDP | 125 W | 125W Base / 250W Max Turbo |
| Market Segment | Desktop | Desktop |
| Cache | 16MB L3 + 2MB L2 + 512KB L1 | 36MB L3 + 40MB L2 |
| Socket | LGA 1200 | LGA 1851 |
| Boost/Base Clock | 5.3 GHz / 3.5 GHz | 5.7 GHz / 3.7 GHz |
| Socket Status | End of Life | Current |
| Process Node | 14 nm | 3 nm |
| SMT Enabled | Yes | false |
| P-Core Base Clock | 3.5 GHz | 3.7 |
| P-Core Boost Clock | 5.3 GHz | 5.5 |
| L2 Cache | 2 MB-95% | 40 MB |
| L3 Cache | 16 MB-56% | 36 MB |
| Base Power | 125 W | 125 W |
| Memory Type | DDR4 | DDR5 |
| Memory Channels | 2 | 2 |
| ECC Support | No | true |
| Integrated Graphics | Yes | Yes |
| iGPU Model | Intel UHD Graphics 750 | Intel Graphics |
| iGPU Compute Units | 32 | 4 |
| PCIe Generation | PCIe 4.0 | PCIe 5.0 |
| PCIe Lanes | 20-17% | 24 |
| Launch MSRP | $539 | 589 |
| Retail Availability | Retail | Boxed Retail |
| Series | Core i9 | Core Ultra 9 |
| CPU Process Node | 14 Nanometers | TSMC N3B (Compute Tile) |
| Architecture | Rocket Lake, 11th Gen Intel Core | Arrow Lake, Core Ultra 200 Series |