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Intel Core i9-13900KS vs Intel Core Ultra 7 265K: Comparison
Intel Core i9-13900KS and Intel Core Ultra 7 265K separate most on l3 cache: Intel Core i9-13900KS at 36 MB, Intel Core Ultra 7 265K at 30 MB, 17% in favour of Intel Core i9-13900KS. PCIe Lanes splits them by another 17%, this time favouring Intel Core Ultra 7 265K. They match on 9 other specifications, including form factor, market segment and performance cores. In Blender Cycles (CPU) the Intel Core i9-13900KS scores 507 against 478 for the Intel Core Ultra 7 265K, a lead of 6%.
Specs
| Specification |  |  |
|---|---|---|
| Form Factor | Desktop | Desktop |
| Model Number | 13900KS | 265K |
| Codename | Raptor Lake | Arrow Lake-S |
| TDP | 125 W | 125W Base / 250W Max Turbo |
| Market Segment | Desktop | Desktop |
| Socket | LGA 1700 | LGA 1851 |
| Socket Status | End of Life | Current |
| Process Node | 10 nm | 3 nm |
| Performance Cores | 8 | 8 |
| Efficiency Cores | 16 | 12 |
| SMT Enabled | true | false |
| P-Core Base Clock | 3.2 | 3.9 |
| P-Core Boost Clock | 5.4 | 5.4 |
| E-Core Base Clock | 2.4 | 3.3 |
| E-Core Boost Clock | 4.3 | 4.6 |
| Unlocked Multiplier | true | true |
| L2 Cache | 32 MB-11% | 36 MB |
| L3 Cache | 36 MB | 30 MB-17% |
| Base Power | 150 W | 125 W |
| Max Turbo Power | 253 | 250 |
| Memory Type | DDR5 or DDR4 | DDR5 |
| Max Memory Speed | 5600 | 6400 |
| Memory Channels | 2 | 2 |
| Max Memory Capacity | 192 | 256 |
| ECC Support | true | true |
| Integrated Graphics | Yes | Yes |
| iGPU Model | Intel UHD Graphics 770 | Intel Graphics |
| iGPU Compute Units | 32 | 4 |
| Copilot Plus Certified | false | false |
| PCIe Generation | 5 | PCIe 5.0 |
| PCIe Lanes | 20-17% | 24 |
| Launch MSRP | 689 | 394 |
| Retail Availability | Retail | Boxed Retail |
| Cores | 24 | 20 |
| Threads | 32 | 20 |
| Architecture | Raptor Lake | Arrow Lake, Core Ultra 200 Series |
Benchmarks
Measured results, not specifications. Percentages are the gap to the leading product in each test.
Blender Cycles (CPU)
Blender 4.5, Blender Open Data (CC0). Median of monster + junkshop + classroom, combined samples/min.
Blender renders 3D scenes by tracing light through them, which loads every core at once. The score measures sustained multi-core throughput, so a chip that wins here can still lose at gaming, where one or two fast cores matter more. Figures come from Blender's Open Data project, which places no restriction on reuse, and we publish the median of every submission for that chip on the same Blender version.
Verdict
Intel Core i9-13900KS
8.7 / 10 Expert Rating
The Intel Core i9-13900KS is an unlocked flagship desktop chip, a top pick for enthusiasts who want to overclock.