Intel
Xeon W9-3475X
Sapphire Rapids · 36C/72T · LGA4677
90
/ 100
From $3,739
VS
Xeon W9-3475X wins by 1
Intel
Core Ultra 9 285K
Arrow Lake · 24C · 5.7 GHz · LGA1851
89
/ 100
From $589
Specdex verdict
Xeon W9-3475X takes it — here’s why.
In our weighted Specdex score, Xeon W9-3475X lands at 90 and Core Ultra 9 285K at 89. That puts Xeon W9-3475X ahead by 1 points — a narrow margin driven mostly by its strengths in the categories below.
Pick Xeon W9-3475X if…
- ✓Massive core counts
- ✓ECC memory support
- ✓Workstation/server-grade platform
Pick Core Ultra 9 285K if…
- ✓Far more efficient than 14900K
- ✓Strong multi-thread productivity
- ✓New LGA1851 platform with DDR5-6400
Xeon W9-3475X 90
vs 89 Core Ultra 9 285K
Score breakdown
Xeon W9-3475X
90 single 82
multi 90
gaming 70
efficiency 78
Core Ultra 9 285K
89 single 92
multi 94
gaming 85
efficiency 90
Specs side-by-side
| Spec | Xeon W9-3475X | Core Ultra 9 285K |
|---|---|---|
| Architecture | Sapphire Rapids | — |
| Cores | ▲ 36 | 24 (8P + 16E) |
| Threads | ▲ 72 | 24 |
| Socket | LGA4677 | LGA1851 |
| Release year | 2023 | — |
| Base clock | — | 3.7 GHz |
| Boost clock | — | 5.7 GHz |
| L3 cache | — | 36 MB |
| TDP | — | 125 W (PL1) / 250 W (PL2) |
| Process | — | TSMC N3B |
| iGPU | — | Intel Graphics (Xe-LPG, 4 Xe cores @ 2.0 GHz) |
| NPU | — | 13 TOPS |
| Memory | — | DDR5-6400 |
Xeon W9-3475X
Pros
- +Massive core counts
- +ECC memory support
- +Workstation/server-grade platform
Cons
- −Niche platform, limited motherboards
- −High TDP requires serious cooling
- −Premium price
Core Ultra 9 285K
Pros
- +Far more efficient than 14900K
- +Strong multi-thread productivity
- +New LGA1851 platform with DDR5-6400
Cons
- −Gaming regresses vs 14900K in some titles
- −No hyper-threading (24 threads from 24 cores)
- −13 TOPS NPU is modest
FAQ: Xeon W9-3475X vs Core Ultra 9 285K
Which is better, Xeon W9-3475X or Core Ultra 9 285K? +
Xeon W9-3475X scores 90 on our weighted rubric — ahead by 1. Your best pick depends on the sub-scores above.
Is Xeon W9-3475X worth the price? +
At $3,739, Xeon W9-3475X delivers a Specdex score of 90 — strongest in multi.
Is Core Ultra 9 285K worth the price? +
At $589, Core Ultra 9 285K delivers a Specdex score of 89 — strongest in multi.
Does Xeon W9-3475X or Core Ultra 9 285K 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.