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Core i9-11900K — Rocket Lake · 8C/16T · 125 W · LGA1200
Intel

Core i9-11900K

Rocket Lake · 8C/16T · 125 W · LGA1200

74
/ 100
From $539
VS
Xeon W9-3475X wins by 16
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 i9-11900K lands at 74 and Xeon W9-3475X at 90. That puts Xeon W9-3475X ahead by 16 points — a decisive margin driven mostly by its strengths in the categories below.

Pick Core i9-11900K 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

Tie

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

Effectively tied — neither pulls a 2-point weighted lead.

Creators & productivity

Xeon W9-3475X

Rendering, compilation, heavy multitasking — favours core count

Xeon W9-3475X leads on multi (90 vs 74).

Power efficiency

Tie

Performance per watt — thermals, PSU headroom, electricity cost

Effectively tied — neither pulls a 2-point weighted lead.

Value for money

Core i9-11900K

Specdex score per dollar at MSRP

Core i9-11900K more score per dollar ($539 vs $3,739).

Core i9-11900K 74
vs
90 Xeon W9-3475X

Score breakdown

Core i9-11900K
74
single 76
multi 74
gaming 73
efficiency 78
Xeon W9-3475X
90
single 82
multi 90
gaming 70
efficiency 78

Specs side-by-side

Core i9-11900K versus Xeon W9-3475X — full spec comparison
Spec Core i9-11900K Xeon W9-3475X
Architecture
Rocket Lake
Sapphire Rapids
Cores
8
▲ 36
Threads
16
▲ 72
TDP
125 W
—
Socket
LGA1200
LGA4677
Release year
2021
2023

Core i9-11900K

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 i9-11900K vs Xeon W9-3475X

Which is better, Core i9-11900K or Xeon W9-3475X? +

Xeon W9-3475X scores 90 on our weighted rubric — ahead by 16. Your best pick depends on the sub-scores above.

Is Core i9-11900K worth the price? +

At $539, Core i9-11900K delivers a Specdex score of 74 — strongest in efficiency.

Is Xeon W9-3475X worth the price? +

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

Does Core i9-11900K 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 creator and productivity work, Core i9-11900K or Xeon W9-3475X? +

Xeon W9-3475X — leads on multi (90 vs 74). Rendering, compilation, heavy multitasking — favours core count.

Which is the better value, Core i9-11900K or Xeon W9-3475X? +

Core i9-11900K — more score per dollar ($539 vs $3,739). Specdex score per dollar at MSRP.