Core i9-13900KF
24C/32T · 5.8 GHz · 125 W · PassMark #194
Ryzen 9 5900X
Zen 3 · 12C/24T · 105 W · AM4
Ryzen 9 5900X takes it — here’s why.
In our weighted Specdex score, Core i9-13900KF lands at 32 and Ryzen 9 5900X at 86. That puts Ryzen 9 5900X ahead by 54 points — a decisive margin driven mostly by its strengths in the categories below.
Pick Core i9-13900KF if…
- ✓PassMark #194 of 5,901 — capable workhorse
- ✓Current PassMark-tracked street price around $1,425
Pick Ryzen 9 5900X if…
- ✓AM4/AM5 longevity
- ✓Multi-thread value
- ✓Unlocked multipliers
Winner by scenario
Derived from the sub-score breakdown · not a separate testValue for money
Ryzen 9 5900XSpecdex score per dollar at MSRP
Ryzen 9 5900X more score per dollar ($549 vs $564).
Score breakdown
Specs side-by-side
| Spec | Core i9-13900KF | Ryzen 9 5900X |
|---|---|---|
| Cores | ▲ 24 (8P + 16E) | 12 |
| Threads | ▲ 32 | 24 |
| Base clock | 3.0 GHz (P) / 2.0 GHz (E) | — |
| Boost clock | 5.8 GHz | — |
| L3 cache | 36 MB | — |
| TDP | 125 W base / 253 W max | 105 W |
| Socket | LGA 1700 | AM4 |
| Class | Desktop (no integrated graphics) | — |
| PassMark rank | #194 of 5,901 | — |
| PassMark CPU Mark | 57,531 | — |
| Architecture | — | Zen 3 |
| Release year | — | 2020 |
Core i9-13900KF
- +PassMark #194 of 5,901 — capable workhorse
- +Current PassMark-tracked street price around $1,425
- −Requires recent-generation motherboard and DDR5 memory
- −Newer-generation parts pull ahead in current rankings
Ryzen 9 5900X
- +AM4/AM5 longevity
- +Multi-thread value
- +Unlocked multipliers
- −DDR5 required on AM5
- −iGPU optional
- −X3D variants better for gaming
FAQ: Core i9-13900KF vs Ryzen 9 5900X
Which is better, Core i9-13900KF or Ryzen 9 5900X? +
Ryzen 9 5900X scores 86 on our weighted rubric — ahead by 54. Your best pick depends on the sub-scores above.
Is Core i9-13900KF worth the price? +
At $564, Core i9-13900KF delivers a Specdex score of 32 — strongest in passmark.
Is Ryzen 9 5900X worth the price? +
At $549, Ryzen 9 5900X delivers a Specdex score of 86 — strongest in multi.
Does Core i9-13900KF or Ryzen 9 5900X last longer? +
Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.
Which is the better value, Core i9-13900KF or Ryzen 9 5900X? +
Ryzen 9 5900X — more score per dollar ($549 vs $564). Specdex score per dollar at MSRP.