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AMD Ryzen 9 7900 vs AMD Ryzen 9 9900X: Comparison
AMD Ryzen 9 7900 and AMD Ryzen 9 9900X differ on tdp: AMD Ryzen 9 7900 at 65 W, AMD Ryzen 9 9900X at 120 W. They match on 4 other specifications, including form factor, l3 cache and cores. In Blender Cycles (CPU) the AMD Ryzen 9 9900X scores 501 against 411 for the AMD Ryzen 9 7900, a lead of 18%.
Specs
| Specification |  |  |
|---|---|---|
| Form Factor | Desktop | Desktop |
| TDP | 65 W | 120 W |
| iGPU | AMD Radeon Graphics (2 CUs, RDNA 2) | AMD Radeon Graphics (2 cores) |
| Socket | AM5 (LGA 1718) | AM5 |
| L3 Cache | 64 MB | 64 MB |
| Cores | 12 | 12 |
| Threads | 24 | 24 |
| Architecture | Zen 4 (7000 series) | Zen 5, Ryzen 9000 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
AMD Ryzen 9 7900
7.9 / 10 Expert Rating
The AMD Ryzen 9 7900 is a well-rounded mainstream desktop chip that covers everyday computing and light gaming without a premium price tag.