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AMD Ryzen 9 3900X vs Intel 9th Gen Intel Core i9-9900K: Comparison
AMD Ryzen 9 3900X and Intel 9th Gen Intel Core i9-9900K separate most on l3 cache: AMD Ryzen 9 3900X at 64 MB, Intel 9th Gen Intel Core i9-9900K at 16 MB, 75% in favour of AMD Ryzen 9 3900X. L2 Cache splits them by another 67%, again favouring AMD Ryzen 9 3900X. They match on 9 other specifications, including form factor, market segment and socket status. In Blender Cycles (CPU) the AMD Ryzen 9 3900X scores 268 against 170 for the Intel 9th Gen Intel Core i9-9900K, a lead of 37%.
Specs
| Specification |  |  |
|---|---|---|
| Brand | AMD | Intel |
| Product Line | Ryzen 9 | Core i9 |
| Form Factor | Desktop | Desktop |
| Model Number | 3900X | 9900K |
| Codename | Matisse | Coffee Lake Refresh |
| Core/Thread Count | 12 Core / 24 Thread | 8 Core / 16 Thread |
| Release Year | 2019 | 2018 |
| TDP | 105 W | 95 W |
| Market Segment | Desktop | Desktop |
| Cache | 64MB L3 + 6MB L2 + 768KB L1 | 16MB L3 + 2MB L2 + 512KB L1 |
| Socket | AM4 | LGA 1151 |
| Boost/Base Clock | 4.6 GHz / 3.8 GHz | 5.0 GHz / 3.6 GHz |
| Socket Status | End of Life | End of Life |
| Process Node | 7 nm | 14 nm |
| Performance Cores | 12 | 8 |
| Efficiency Cores | 0 | 0 |
| SMT Enabled | true | true |
| P-Core Base Clock | 3.8 | 3.6 GHz |
| P-Core Boost Clock | 4.6 | 5.0 GHz |
| L2 Cache | 6 MB | 2 MB-67% |
| L3 Cache | 64 MB | 16 MB-75% |
| Base Power | 105 W | 95 W |
| Max Turbo Power | 142 | 95 W |
| Memory Type | DDR4 | DDR4 |
| Max Memory Speed | 3200 | 2666 MT/s |
| Memory Channels | 2 | 2 |
| ECC Support | false | false |
| Integrated Graphics | No | Yes |
| PCIe Generation | 4 | 3.0 |
| PCIe Lanes | 20 | 16-20% |
| Launch MSRP | 499 | $488 |
| Retail Availability | Retail | Retail |
| Series | Ryzen 9 | Core i9 |
| CPU Process Node | 7 Nanometers (TSMC) | 14 Nanometers |
| Architecture | Zen 2, Ryzen 3000 Series "Matisse" | Coffee Lake Refresh, 9th Gen Intel Core |
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.
More comparisons in Processors (CPUs)
- AMD 6th Gen A10-8700P APU vs Intel 9th Gen Intel Core i9-9900K
- AMD Ryzen 9 7950X vs Intel 9th Gen Intel Core i9-9900K
- Intel Core i9-13900T vs Intel 9th Gen Intel Core i9-9900K
- AMD Ryzen 9 3900X vs Intel 9th Gen Intel Core i9-9900KS
- Intel 9th Gen Intel Core i9-9900K vs Intel Core Ultra 5 245KF
- AMD Ryzen 9 3900XT vs Intel 9th Gen Intel Core i9-9900K