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Ryzen 9 9900X — Zen 5 · 12C/24T · 5.6 GHz · AM5
AMD

Ryzen 9 9900X

Zen 5 · 12C/24T · 5.6 GHz · AM5

92
/ 100
From $499
VS
EPYC 9654 wins by 4
EPYC 9654 — Zen 4 · 96C/192T · SP5
AMD

EPYC 9654

Zen 4 · 96C/192T · SP5

96
/ 100
From $11,805
Specdex verdict

EPYC 9654 takes it — here’s why.

In our weighted Specdex score, Ryzen 9 9900X lands at 92 and EPYC 9654 at 96. That puts EPYC 9654 ahead by 4 points — a narrow margin driven mostly by its strengths in the categories below.

Pick Ryzen 9 9900X if…

  • 12 cores at 5.6 GHz boost
  • 120 W TDP — cooler than 9950X
  • AM5 platform longevity

Pick EPYC 9654 if…

  • Massive core counts
  • ECC memory support
  • Workstation/server-grade platform
Ryzen 9 9900X 92
vs
96 EPYC 9654

Score breakdown

Ryzen 9 9900X
92
single 93
multi 94
gaming 88
efficiency 88
EPYC 9654
96
single 88
multi 96
gaming 76
efficiency 78

Specs side-by-side

Ryzen 9 9900X versus EPYC 9654 — full spec comparison
Spec Ryzen 9 9900X EPYC 9654
Cores
12
96
Threads
24
192
Base clock
4.4 GHz
Boost clock
5.6 GHz
L3 cache
64 MB
TDP
120 W
Socket
AM5
SP5
Process
TSMC N4X
iGPU
Radeon Graphics (RDNA 2, 2 CUs)
Memory
DDR5-5600 dual-channel
Architecture
Zen 4
Release year
2022

Ryzen 9 9900X

Pros
  • +12 cores at 5.6 GHz boost
  • +120 W TDP — cooler than 9950X
  • +AM5 platform longevity
Cons
  • 9950X edges it on multi-thread
  • 9800X3D beats it on gaming
  • $499 puts it close to higher-tier

EPYC 9654

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

FAQ: Ryzen 9 9900X vs EPYC 9654

Which is better, Ryzen 9 9900X or EPYC 9654? +

EPYC 9654 scores 96 on our weighted rubric — ahead by 4. Your best pick depends on the sub-scores above.

Is Ryzen 9 9900X worth the price? +

At $499, Ryzen 9 9900X delivers a Specdex score of 92 — strongest in multi.

Is EPYC 9654 worth the price? +

At $11,805, EPYC 9654 delivers a Specdex score of 96 — strongest in multi.

Does Ryzen 9 9900X or EPYC 9654 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.