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Xeon W5-3435X — Sapphire Rapids · 16C/32T · LGA4677
Intel

Xeon W5-3435X

Sapphire Rapids · 16C/32T · LGA4677

82
/ 100
From $1,589
VS
EPYC 9454 wins by 6
EPYC 9454 — Zen 4 · 48C/96T · SP5
AMD

EPYC 9454

Zen 4 · 48C/96T · SP5

88
/ 100
From $5,225
Specdex verdict

EPYC 9454 takes it — here’s why.

In our weighted Specdex score, Xeon W5-3435X lands at 82 and EPYC 9454 at 88. That puts EPYC 9454 ahead by 6 points — a decisive margin driven mostly by its strengths in the categories below.

Pick Xeon W5-3435X if…

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

Pick EPYC 9454 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

EPYC 9454

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

EPYC 9454 leads on gaming (68 vs 62).

Creators & productivity

EPYC 9454

Rendering, compilation, heavy multitasking — favours core count

EPYC 9454 leads on multi (88 vs 82).

Power efficiency

Tie

Performance per watt — thermals, PSU headroom, electricity cost

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

Value for money

Xeon W5-3435X

Specdex score per dollar at MSRP

Xeon W5-3435X more score per dollar ($1,589 vs $5,225).

Xeon W5-3435X 82
vs
88 EPYC 9454

Score breakdown

Xeon W5-3435X
82
single 74
multi 82
gaming 62
efficiency 78
EPYC 9454
88
single 80
multi 88
gaming 68
efficiency 78

Specs side-by-side

Xeon W5-3435X versus EPYC 9454 — full spec comparison
Spec Xeon W5-3435X EPYC 9454
Architecture
Sapphire Rapids
Zen 4
Cores
16
▲ 48
Threads
32
▲ 96
Socket
LGA4677
SP5
Release year
2023
2022

Xeon W5-3435X

Pros
  • +Massive core counts
  • +ECC memory support
  • +Workstation/server-grade platform
Cons
  • −Niche platform, limited motherboards
  • −High TDP requires serious cooling
  • −Premium price

EPYC 9454

Pros
  • +Massive core counts
  • +ECC memory support
  • +Workstation/server-grade platform
Cons
  • −Niche platform, limited motherboards
  • −High TDP requires serious cooling
  • −Premium price

FAQ: Xeon W5-3435X vs EPYC 9454

Which is better, Xeon W5-3435X or EPYC 9454? +

EPYC 9454 scores 88 on our weighted rubric — ahead by 6. Your best pick depends on the sub-scores above.

Is Xeon W5-3435X worth the price? +

At $1,589, Xeon W5-3435X delivers a Specdex score of 82 — strongest in multi.

Is EPYC 9454 worth the price? +

At $5,225, EPYC 9454 delivers a Specdex score of 88 — strongest in multi.

Does Xeon W5-3435X or EPYC 9454 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, Xeon W5-3435X or EPYC 9454? +

EPYC 9454 — leads on gaming (68 vs 62). Frame-rate-bound workloads — favours cache and single-thread speed.

Which is better for creator and productivity work, Xeon W5-3435X or EPYC 9454? +

EPYC 9454 — leads on multi (88 vs 82). Rendering, compilation, heavy multitasking — favours core count.