Core Ultra 9 275HX
24C/24T · 5.4 GHz · 55 W · PassMark #217
Ryzen 9 9955HX
16C/32T · 5.4 GHz · 55 W TDP · FL1 · PassMark #215
Dead heat — it comes down to priorities.
In our weighted Specdex score, Core Ultra 9 275HX lands at 31 and Ryzen 9 9955HX at 31. With scores tied, the decision hinges on which sub-scores matter most to you.
Pick Core Ultra 9 275HX if…
- ✓PassMark CPU Mark of 55,868 — solid multi-thread numbers
- ✓Intel's latest architecture with on-chip NPU
Pick Ryzen 9 9955HX if…
- ✓PassMark CPU Mark of 56,057 — solid multi-thread numbers
- ✓Mainstream desktop flagship core count
Winner by scenario
Derived from the sub-score breakdown · not a separate testValue for money
TieSpecdex score per dollar at MSRP
Effectively tied — similar score-per-dollar at MSRP.
Score breakdown
Specs side-by-side
| Spec | Core Ultra 9 275HX | Ryzen 9 9955HX |
|---|---|---|
| Cores | ▲ 24 (8P + 16E) | 16 |
| Threads | 24 | ▲ 32 |
| Base clock | 2.7 GHz | 2.5 GHz |
| Boost clock | 5.4 GHz | 5.4 GHz |
| L3 cache | 36 MB | ▲ 64 MB |
| TDP | 55 W base / 160 W turbo | 55 W |
| Socket | BGA 2114 | FL1 |
| Class | Laptop (HX) | Desktop, Laptop |
| PassMark rank | #217 of 5,901 | #215 of 5,901 |
| PassMark CPU Mark | 55,868 | ▲ 56,057 |
Core Ultra 9 275HX
- +PassMark CPU Mark of 55,868 — solid multi-thread numbers
- +Intel's latest architecture with on-chip NPU
- −Requires recent-generation motherboard and DDR5 memory
- −Newer-generation parts pull ahead in current rankings
Ryzen 9 9955HX
- +PassMark CPU Mark of 56,057 — solid multi-thread numbers
- +Mainstream desktop flagship core count
- −Requires recent-generation motherboard and DDR5 memory
- −Newer-generation parts pull ahead in current rankings
FAQ: Core Ultra 9 275HX vs Ryzen 9 9955HX
Which is better, Core Ultra 9 275HX or Ryzen 9 9955HX? +
Both score 31 on our weighted rubric — tied. Your best pick depends on the sub-scores above.
Is Core Ultra 9 275HX worth the price? +
At $599, Core Ultra 9 275HX delivers a Specdex score of 31 — strongest in passmark.
Is Ryzen 9 9955HX worth the price? +
At $549, Ryzen 9 9955HX delivers a Specdex score of 31 — strongest in passmark.
Does Core Ultra 9 275HX or Ryzen 9 9955HX 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.