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Core Ultra 5 245K — Arrow Lake · 14C/14T · 125 W · LGA1851
Intel

Core Ultra 5 245K

Arrow Lake · 14C/14T · 125 W · LGA1851

81
/ 100
From $309
VS
Xeon W9-3475X wins by 9
Xeon W9-3475X — Sapphire Rapids · 36C/72T · LGA4677
Intel

Xeon W9-3475X

Sapphire Rapids · 36C/72T · LGA4677

90
/ 100
From $3,739
Specdex verdict

Xeon W9-3475X takes it — here’s why.

In our weighted Specdex score, Core Ultra 5 245K lands at 81 and Xeon W9-3475X at 90. That puts Xeon W9-3475X ahead by 9 points — a decisive margin driven mostly by its strengths in the categories below.

Pick Core Ultra 5 245K if…

  • ✓Strong per-core performance
  • ✓Hybrid P/E cores (12th gen+)
  • ✓Wide platform availability

Pick Xeon W9-3475X if…

  • ✓Massive core counts
  • ✓ECC memory support
  • ✓Workstation/server-grade platform
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Winner by scenario

Derived from the sub-score breakdown · not a separate test

Gaming

Core Ultra 5 245K

Frame-rate-bound workloads — favours cache and single-thread speed

Core Ultra 5 245K leads on gaming (80 vs 70).

Creators & productivity

Xeon W9-3475X

Rendering, compilation, heavy multitasking — favours core count

Xeon W9-3475X leads on multi (90 vs 81).

Power efficiency

Core Ultra 5 245K

Performance per watt — thermals, PSU headroom, electricity cost

Core Ultra 5 245K leads on efficiency (83 vs 78).

Value for money

Core Ultra 5 245K

Specdex score per dollar at MSRP

Core Ultra 5 245K more score per dollar ($309 vs $3,739).

Core Ultra 5 245K 81
vs
90 Xeon W9-3475X

Score breakdown

Core Ultra 5 245K
81
single 83
multi 81
gaming 80
efficiency 83
Xeon W9-3475X
90
single 82
multi 90
gaming 70
efficiency 78

Specs side-by-side

Core Ultra 5 245K versus Xeon W9-3475X — full spec comparison
Spec Core Ultra 5 245K Xeon W9-3475X
Architecture
Arrow Lake
Sapphire Rapids
Cores
14
▲ 36
Threads
14
▲ 72
TDP
125 W
—
Socket
LGA1851
LGA4677
Release year
2024
2023

Core Ultra 5 245K

Pros
  • +Strong per-core performance
  • +Hybrid P/E cores (12th gen+)
  • +Wide platform availability
Cons
  • −Power draw on top SKUs
  • −Frequent socket changes
  • −Arrow Lake gaming regressions

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

FAQ: Core Ultra 5 245K vs Xeon W9-3475X

Which is better, Core Ultra 5 245K or Xeon W9-3475X? +

Xeon W9-3475X scores 90 on our weighted rubric — ahead by 9. Your best pick depends on the sub-scores above.

Is Core Ultra 5 245K worth the price? +

At $309, Core Ultra 5 245K delivers a Specdex score of 81 — strongest in single.

Is Xeon W9-3475X worth the price? +

At $3,739, Xeon W9-3475X delivers a Specdex score of 90 — strongest in multi.

Does Core Ultra 5 245K or Xeon W9-3475X 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 better for gaming, Core Ultra 5 245K or Xeon W9-3475X? +

Core Ultra 5 245K — leads on gaming (80 vs 70). Frame-rate-bound workloads — favours cache and single-thread speed.

Which is better for creator and productivity work, Core Ultra 5 245K or Xeon W9-3475X? +

Xeon W9-3475X — leads on multi (90 vs 81). Rendering, compilation, heavy multitasking — favours core count.