Core Ultra 9 285K
EPYC 8434P
Core Ultra 9 285K vs EPYC 8434P Performance Spectrum
About PassMark
PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.
Core Ultra 9 285K vs EPYC 8434P FPS Benchmarks
Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.
Search any supported game below to compare 1080p FPS for both components.
Path of Exile 2
Counter-Strike 2
League of Legends
Valorant
Among Us
Apex Legends
ARC Raiders
Baldur's Gate 3
Call of Duty: Black Ops 6
Core Ultra 9 285K vs EPYC 8434P: Pros, Cons & Final Verdict
See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.
Core Ultra 9 285K
2024Why buy it
- ✅Better for gaming: +35.2% higher average FPS across 50 shared CPU benchmark tests.
- ✅Costs $928 less on MSRP ($589 MSRP vs $1,517 MSRP).
- ✅Delivers 161.4% more PassMark for each dollar spent, at 114.6 vs 43.8 PassMark/$ ($589 MSRP vs $1,517 MSRP).
- ✅Draws 125W instead of 200W, a 75W reduction.
- ✅Integrated graphics onboard with Intel Arc Graphics 64EU, while EPYC 8434P needs a discrete GPU.
Trade-offs
- ❌Smaller total L3 cache (36 MB vs 128 MB).
- ❌Less compelling for workstation-style loads than EPYC 8434P, which brings 48 cores / 96 threads and 96 PCIe lanes.
- ❌No AVX-512 support for niche heavy compute workloads where it can matter.
EPYC 8434P
2023Why buy it
- ✅+255.6% larger total L3 cache (128 MB vs 36 MB).
- ✅Better for workstations and heavier parallel workloads: 48 cores / 96 threads, plus 96 PCIe lanes vs 24.
- ✅300% more PCIe lanes (96 vs 24) for storage and expansion-heavy builds.
Trade-offs
- ❌Worse for gaming: lower average FPS than Core Ultra 9 285K across 50 shared CPU benchmark tests.
- ❌Lower PassMark (66,490 vs 67,482).
- ❌Lower PassMark per dollar, at 43.8 vs 114.6 PassMark/$ ($1,517 MSRP vs $589 MSRP).
- ❌60% higher power demand at 200W vs 125W.
- ❌No integrated graphics, while Core Ultra 9 285K can still boot and troubleshoot without a discrete GPU.
Quick Answers
So, is Core Ultra 9 285K better than EPYC 8434P?
Which one is better for gaming?
Which one is better for streaming, content creation, and heavy multitasking?
Which one is the smarter buy today, not just the cheaper CPU?
Which one is more future-proof for 2026 and beyond?
Core Ultra 9 285K vs EPYC 8434P Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.
Core Ultra 9 285K
The Core Ultra 9 285K is manufactured by Intel. It was released in 24 October 2024 (1 year ago). It is based on the Arrow Lake-S (2024−2025) architecture. It features 24 cores and 24 threads. Base frequency is 3.7 GHz, with boost up to 5.6 GHz. L3 cache: 36 MB (total). L2 cache: 3 MB (per core). Built on 3 nm process technology. Socket: LGA1851. Thermal design power (TDP): 125 Watt. Memory support: DDR5-6400. Passmark benchmark score: 67,482 points. Launch price was $589.
EPYC 8434P
The EPYC 8434P is manufactured by AMD. It was released in 18 September 2023 (2 years ago). It is based on the Siena (2023−2024) architecture. It features 48 cores and 96 threads. Base frequency is 2.5 GHz, with boost up to 3.1 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: SP6. Thermal design power (TDP): 200 Watt. Memory support: DDR5. Passmark benchmark score: 66,490 points. Launch price was $2,700.
Processing Power
The Core Ultra 9 285K packs 24 cores / 24 threads, while the EPYC 8434P offers 48 cores / 96 threads — the EPYC 8434P has 24 more cores. Boost clocks reach 5.6 GHz on the Core Ultra 9 285K versus 3.1 GHz on the EPYC 8434P — a 57.5% clock advantage for the Core Ultra 9 285K (base: 3.7 GHz vs 2.5 GHz). The Core Ultra 9 285K uses the Arrow Lake-S (2024−2025) architecture (3 nm), while the EPYC 8434P uses Siena (2023−2024) (5 nm). In PassMark, the Core Ultra 9 285K scores 67,482 against the EPYC 8434P's 66,490 — a 1.5% lead for the Core Ultra 9 285K. L3 cache: 36 MB (total) on the Core Ultra 9 285K vs 128 MB (total) on the EPYC 8434P.
| Feature | Core Ultra 9 285K | EPYC 8434P |
|---|---|---|
| Cores / Threads | 24 / 24 | 48 / 96+100% |
| Boost Clock | 5.6 GHz+81% | 3.1 GHz |
| Base Clock | 3.7 GHz+48% | 2.5 GHz |
| L3 Cache | 36 MB (total) | 128 MB (total)+256% |
| L2 Cache | 3 MB (per core)+200% | 1 MB (per core) |
| Process | 3 nm-40% | 5 nm |
| Architecture | Arrow Lake-S (2024−2025) | Siena (2023−2024) |
| PassMark | 67,482+1% | 66,490 |
| Cinebench R23 Multi | 45,563 | — |
| Geekbench 6 Single | 3,200 | — |
| Geekbench 6 Multi | 22,563 | — |
Memory & Platform
The Core Ultra 9 285K uses the LGA1851 socket (PCIe 5.0), while the EPYC 8434P uses SP6 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-6400 on the Core Ultra 9 285K versus 4800 on the EPYC 8434P — the Core Ultra 9 285K supports 33.3% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 8434P supports up to 1152 GB of RAM compared to 192 GB — 500% more capacity for professional workloads. Memory channels: 2 (Core Ultra 9 285K) vs 6 (EPYC 8434P). PCIe lanes: 24 (Core Ultra 9 285K) vs 96 (EPYC 8434P) — the EPYC 8434P offers 72 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Z890 (Core Ultra 9 285K) and SP6 (EPYC 8434P).
| Feature | Core Ultra 9 285K | EPYC 8434P |
|---|---|---|
| Socket | LGA1851 | SP6 |
| PCIe Generation | PCIe 5.0+25% | PCIe 4.0 |
| Max RAM Speed | DDR5-6400+33% | 4800 |
| Max RAM Capacity | 192 GB | 1152 GB+500% |
| RAM Channels | 2 | 6+200% |
| ECC Support | Yes | Yes |
| PCIe Lanes | 24 | 96+300% |
Advanced Features
Only the Core Ultra 9 285K has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the EPYC 8434P supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: true (Core Ultra 9 285K) vs VT-x, VT-d (EPYC 8434P). The Core Ultra 9 285K includes integrated graphics (Intel Arc Graphics 64EU), while the EPYC 8434P requires a dedicated GPU. Direct competitor: Core Ultra 9 285K rivals Ryzen 9 9950X; EPYC 8434P rivals Xeon Platinum 8452Y.
| Feature | Core Ultra 9 285K | EPYC 8434P |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Intel Arc Graphics 64EU | None |
| Unlocked | Yes | No |
| AVX-512 | No | Yes |
| Virtualization | true | VT-x, VT-d |
Value Analysis
At launch, the Core Ultra 9 285K was priced at $589, while the EPYC 8434P came in at $1517. On launch pricing ($589 vs $1517), Core Ultra 9 285K was $928 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core Ultra 9 285K delivers 114.6 pts/$ vs 43.8 pts/$ for the EPYC 8434P — making the Core Ultra 9 285K the 89.3% better value option.
| Feature | Core Ultra 9 285K | EPYC 8434P |
|---|---|---|
| MSRP | $589-61% | $1517 |
| Performance per Dollar | 114.6+162% | 43.8 |
| Release Date | 2024 | 2023 |
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