Between the Core Ultra 9 285K and Ryzen 7 9700X, the Core Ultra 9 285K comes out ahead in cores and cinebench r23 (multi), while the Ryzen 7 9700X wins on tdp. Overall, the Core Ultra 9 285K scores 60.9 and the Ryzen 7 9700X scores 51.5 on our Mars Score.
Which should you buy?
The Core Ultra 9 285K is the clear pick on raw spec strength, leading by 9.4 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the Core Ultra 9 285K if you push the hardware — gaming, on-device AI, heavy multitasking — and the extra compute headroom is worth the trade-offs. The biggest gaps in its favor are cores, cinebench r23 (multi), l3 cache, among others.
Pick the Ryzen 7 9700X if you care most about tdp. Its strongest claims are tdp.
There are no meaningful ties on the headline specs — every popular-comparison metric has a winner.
Bottom line: the Core Ultra 9 285K is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Intel - Core Ultra 9 285K wins
- ▲Cores — 200.00% more. 24 vs 8.
- ▲Cinebench R23 (multi) — 87.72% more. 42800 vs 22800.
- ▲L3 cache — 12.50% more. 36 MB vs 32 MB.
- ▲Boost clock — 3.64% more. 5.7 GHz vs 5.5 GHz.
Why AMD - Ryzen 7 9700X wins
- ▲TDP — 60.00 W less. 65 vs 125.
Spec comparison
Cores
| Spec | Intel - Core Ultra 9 285K | AMD - Ryzen 7 9700X |
|---|---|---|
| Coresⓘ | 24lead | 8 |
| Threadsⓘ | 24lead | 16 |
| Base clockⓘ | 3.7 GHz | 3.8 GHzlead |
| Boost clockⓘ | 5.7 GHzlead | 5.5 GHz |
| L3 cacheⓘ | 36 MBlead | 32 MB |
Platform
| Spec | Intel - Core Ultra 9 285K | AMD - Ryzen 7 9700X |
|---|---|---|
| Socketⓘ | LGA1851 | AM5 |
| TDPⓘ | 125 W | 65 Wlead |
| Integrated graphicsⓘ | true | true |
| DDR5ⓘ | true | true |
Benchmarks
| Spec | Intel - Core Ultra 9 285K | AMD - Ryzen 7 9700X |
|---|---|---|
| Cinebench R23 (multi)ⓘ | 42800lead | 22800 |
| Cinebench R23 (single)ⓘ | 2230lead | 2180 |
Spec-level deep dives
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