Core Ultra 9 285K vs EPYC 8434P

CPU

GPU

Core Ultra 9 285K

24 Cores24 Thrd125 WWMax: 5.6 GHz2024

Popular choices:

•••••••••

EPYC 8434P

48 Cores96 Thrd200 WWMax: 3.1 GHz2023

Popular choices:

•••••••••

Performance Spectrum - CPU

Core Ultra 9 285K

24 / 24

67,482

+1.5%

66,490

0.0%

Ryzen Threadripper 3990X

Ryzen Threadripper 9960X

Ryzen Threadripper PRO 9975WX

Ryzen Threadripper PRO 7985WX

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.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, productivity performance, platform differences, power efficiency, pricing context, and upgrade path so you can see which CPU actually makes more sense.

Core Ultra 9 285K

2024

Why 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

2023

Why 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.

Core Ultra 9 285K

2024

EPYC 8434P

2023

Why 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.

Why 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

❌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.

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?

Not in a simple one-size-fits-all way. EPYC 8434P makes more sense for workstation-style multi-core throughput, while Core Ultra 9 285K is the better mainstream desktop choice for gaming, platform cost, and day-to-day practicality.

Which one is better for gaming?

If gaming is the priority, Core Ultra 9 285K is the better pick here. According to our tests, it delivers 35.2% more average FPS across 50 shared CPU game tests.

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Core Ultra 9 285K is the better fit. You are getting 1.5% better PassMark, backed by 24 cores and 24 threads.

Which one is the smarter buy today, not just the cheaper CPU?

Core Ultra 9 285K is the smarter buy today. Core Ultra 9 285K is $928 cheaper on MSRP at $589 MSRP versus $1,517 MSRP, and it gives you a 35.2% average FPS lead across 50 shared CPU game tests in our data. It is also 161.4% better value on MSRP (114.6 vs 43.8 PassMark/$), so the better CPU is not just faster, it is also the cleaner value play on paper.

Which one is more future-proof for 2026 and beyond?

Core Ultra 9 285K is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2024 vs 2023) and more multi-core headroom with 24 cores / 24 threads instead of 48/96. That should give you a better long-term upgrade path for motherboard, RAM, and future CPU swaps.

Games Benchmarks

Paired with RTX 4090

To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.

Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.

Core Ultra 9 285K Benchmark Check

EPYC 8434P Benchmark Check

Path of Exile 2

Preset	Core Ultra 9 285K	EPYC 8434P
1080p
low	341 FPS	159 FPS
medium	323 FPS	131 FPS
high	267 FPS	110 FPS
ultra	226 FPS	87 FPS
1440p
low	288 FPS	142 FPS
medium	239 FPS	114 FPS
high	184 FPS	90 FPS
ultra	162 FPS	72 FPS
4K
low	188 FPS	68 FPS
medium	155 FPS	58 FPS
high	115 FPS	45 FPS
ultra	103 FPS	37 FPS

Open Core Ultra 9 285K Open EPYC 8434P

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core Ultra 9 285K	EPYC 8434P
1080p
low	899 FPS	419 FPS
medium	778 FPS	369 FPS
high	623 FPS	300 FPS
ultra	544 FPS	236 FPS
1440p
low	756 FPS	344 FPS
medium	677 FPS	311 FPS
high	557 FPS	260 FPS
ultra	447 FPS	199 FPS
4K
low	421 FPS	212 FPS
medium	383 FPS	195 FPS
high	358 FPS	163 FPS
ultra	310 FPS	132 FPS

Open Core Ultra 9 285K Open EPYC 8434P

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core Ultra 9 285K	EPYC 8434P
1080p
low	879 FPS	860 FPS
medium	718 FPS	786 FPS
high	637 FPS	760 FPS
ultra	545 FPS	682 FPS
1440p
low	750 FPS	663 FPS
medium	616 FPS	587 FPS
high	534 FPS	558 FPS
ultra	458 FPS	498 FPS
4K
low	534 FPS	435 FPS
medium	459 FPS	344 FPS
high	415 FPS	307 FPS
ultra	352 FPS	250 FPS

Open Core Ultra 9 285K Open EPYC 8434P

League of Legends

League of Legends

Valorant

Preset	Core Ultra 9 285K	EPYC 8434P
1080p
low	1202 FPS	1023 FPS
medium	1015 FPS	913 FPS
high	939 FPS	772 FPS
ultra	846 FPS	651 FPS
1440p
low	930 FPS	833 FPS
medium	811 FPS	712 FPS
high	713 FPS	598 FPS
ultra	633 FPS	492 FPS
4K
low	685 FPS	600 FPS
medium	606 FPS	524 FPS
high	539 FPS	451 FPS
ultra	437 FPS	376 FPS

Open Core Ultra 9 285K Open EPYC 8434P

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core Ultra 9 285K and EPYC 8434P

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 EPYC 8434P supports 199.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 8434P supports up to 1152 of RAM compared to 192 GB — 142.9% 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	4800+95900%
Max RAM Capacity	192 GB+17476167%	1152
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

The Core Ultra 9 285K launched at $589 MSRP, while the EPYC 8434P debuted at $1517. On MSRP ($589 vs $1517), the Core Ultra 9 285K is $928 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core Ultra 9 285K delivers 114.6 pts/$ vs 43.8 pts/$ for the EPYC 8434P — making the Core Ultra 9 285K the 89.3% better value option.