Core Ultra 9 285K
Arrow Lake · 24C · 5.7 GHz · LGA1851
EPYC 9554
Zen 4 · 64C/128T · SP5
EPYC 9554 takes it — here’s why.
In our weighted Specdex score, Core Ultra 9 285K lands at 89 and EPYC 9554 at 92. That puts EPYC 9554 ahead by 3 points — a narrow margin driven mostly by its strengths in the categories below.
Pick Core Ultra 9 285K if…
- ✓Far more efficient than 14900K
- ✓Strong multi-thread productivity
- ✓New LGA1851 platform with DDR5-6400
Pick EPYC 9554 if…
- ✓Massive core counts
- ✓ECC memory support
- ✓Workstation/server-grade platform
Winner by scenario
Derived from the sub-score breakdown · not a separate testGaming
Core Ultra 9 285KFrame-rate-bound workloads — favours cache and single-thread speed
Core Ultra 9 285K leads on gaming (85 vs 72).
Creators & productivity
Core Ultra 9 285KRendering, compilation, heavy multitasking — favours core count
Core Ultra 9 285K leads on multi (94 vs 92).
Power efficiency
Core Ultra 9 285KPerformance per watt — thermals, PSU headroom, electricity cost
Core Ultra 9 285K leads on efficiency (90 vs 78).
Value for money
Core Ultra 9 285KSpecdex score per dollar at MSRP
Core Ultra 9 285K more score per dollar ($589 vs $9,087).
Score breakdown
Specs side-by-side
| Spec | Core Ultra 9 285K | EPYC 9554 |
|---|---|---|
| Cores | 24 (8P + 16E) | ▲ 64 |
| Threads | 24 | ▲ 128 |
| Base clock | 3.7 GHz | — |
| Boost clock | 5.7 GHz | — |
| L3 cache | 36 MB | — |
| TDP | 125 W (PL1) / 250 W (PL2) | — |
| Socket | LGA1851 | SP5 |
| Process | TSMC N3B | — |
| iGPU | Intel Graphics (Xe-LPG, 4 Xe cores @ 2.0 GHz) | — |
| NPU | 13 TOPS | — |
| Memory | DDR5-6400 | — |
| Architecture | — | Zen 4 |
| Release year | — | 2022 |
Core Ultra 9 285K
- +Far more efficient than 14900K
- +Strong multi-thread productivity
- +New LGA1851 platform with DDR5-6400
- −Gaming regresses vs 14900K in some titles
- −No hyper-threading (24 threads from 24 cores)
- −13 TOPS NPU is modest
EPYC 9554
- +Massive core counts
- +ECC memory support
- +Workstation/server-grade platform
- −Niche platform, limited motherboards
- −High TDP requires serious cooling
- −Premium price
FAQ: Core Ultra 9 285K vs EPYC 9554
Which is better, Core Ultra 9 285K or EPYC 9554? +
EPYC 9554 scores 92 on our weighted rubric — ahead by 3. Your best pick depends on the sub-scores above.
Is Core Ultra 9 285K worth the price? +
At $589, Core Ultra 9 285K delivers a Specdex score of 89 — strongest in multi.
Is EPYC 9554 worth the price? +
At $9,087, EPYC 9554 delivers a Specdex score of 92 — strongest in multi.
Does Core Ultra 9 285K or EPYC 9554 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 9 285K or EPYC 9554? +
Core Ultra 9 285K — leads on gaming (85 vs 72). Frame-rate-bound workloads — favours cache and single-thread speed.
Which is better for creator and productivity work, Core Ultra 9 285K or EPYC 9554? +
Core Ultra 9 285K — leads on multi (94 vs 92). Rendering, compilation, heavy multitasking — favours core count.