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.

EPYC 8434P

2023

Why buy it

✅Better for gaming: +7.0% higher average FPS across 3 shared CPU benchmark tests.
✅Costs $2,244 less on MSRP ($1,517 MSRP vs $3,761 MSRP).
✅Delivers 156.2% more PassMark for each dollar spent, at 43.8 vs 17.1 PassMark/$ ($1,517 MSRP vs $3,761 MSRP).

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

EPYC 9254

2022

Why buy it

✅33.3% more PCIe lanes (128 vs 96) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than EPYC 8434P across 3 shared CPU benchmark tests.
❌Lower PassMark (64,344 vs 66,490).
❌Lower PassMark per dollar, at 17.1 vs 43.8 PassMark/$ ($3,761 MSRP vs $1,517 MSRP).

EPYC 8434P

2023

EPYC 9254

2022

Why buy it

✅Better for gaming: +7.0% higher average FPS across 3 shared CPU benchmark tests.
✅Costs $2,244 less on MSRP ($1,517 MSRP vs $3,761 MSRP).
✅Delivers 156.2% more PassMark for each dollar spent, at 43.8 vs 17.1 PassMark/$ ($1,517 MSRP vs $3,761 MSRP).

Why buy it

✅33.3% more PCIe lanes (128 vs 96) for storage and expansion-heavy builds.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Trade-offs

❌Worse for gaming: lower average FPS than EPYC 8434P across 3 shared CPU benchmark tests.
❌Lower PassMark (64,344 vs 66,490).
❌Lower PassMark per dollar, at 17.1 vs 43.8 PassMark/$ ($3,761 MSRP vs $1,517 MSRP).

Quick Answers

So, is EPYC 8434P better than EPYC 9254?

Yes. EPYC 8434P is the better overall CPU here. You are getting a 7.0% average FPS lead across 3 shared CPU game tests in our data, 3.3% better PassMark, and the stronger long-term platform, which makes it the stronger all-around choice.

Which one is better for gaming?

If gaming is the priority, EPYC 8434P is the better pick here. According to our tests, it delivers 7.0% more average FPS across 3 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, EPYC 8434P is the better fit. You are getting 3.3% better PassMark, backed by 48 cores and 96 threads.

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

EPYC 8434P is the smarter buy today. EPYC 8434P is $2,244 cheaper on MSRP at $1,517 MSRP versus $3,761 MSRP, and it gives you a 7.0% average FPS lead across 3 shared CPU game tests in our data. It is also 156.2% better value on MSRP (43.8 vs 17.1 PassMark/$), 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?

EPYC 8434P is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2022) and more multi-core headroom with 48 cores / 96 threads instead of 24/48. That extra cache should hold up really well in CPU-limited games and high-refresh builds.

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.

EPYC 8434P Benchmark Check

EPYC 9254 Benchmark Check

Path of Exile 2

Preset	EPYC 8434P	EPYC 9254
1080p
low	159 FPS	171 FPS
medium	131 FPS	142 FPS
high	110 FPS	123 FPS
ultra	87 FPS	96 FPS
1440p
low	142 FPS	149 FPS
medium	114 FPS	120 FPS
high	90 FPS	97 FPS
ultra	72 FPS	77 FPS
4K
low	68 FPS	70 FPS
medium	58 FPS	60 FPS
high	45 FPS	47 FPS
ultra	37 FPS	39 FPS

Open EPYC 8434P Open EPYC 9254

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	EPYC 8434P	EPYC 9254
1080p
low	419 FPS	603 FPS
medium	369 FPS	529 FPS
high	300 FPS	429 FPS
ultra	236 FPS	375 FPS
1440p
low	344 FPS	507 FPS
medium	311 FPS	453 FPS
high	260 FPS	379 FPS
ultra	199 FPS	314 FPS
4K
low	212 FPS	315 FPS
medium	195 FPS	285 FPS
high	163 FPS	257 FPS
ultra	132 FPS	230 FPS

Open EPYC 8434P Open EPYC 9254

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	EPYC 8434P	EPYC 9254
1080p
low	860 FPS	716 FPS
medium	786 FPS	608 FPS
high	760 FPS	552 FPS
ultra	682 FPS	486 FPS
1440p
low	663 FPS	549 FPS
medium	587 FPS	465 FPS
high	558 FPS	415 FPS
ultra	498 FPS	359 FPS
4K
low	435 FPS	400 FPS
medium	344 FPS	321 FPS
high	307 FPS	283 FPS
ultra	250 FPS	227 FPS

Open EPYC 8434P Open EPYC 9254

League of Legends

League of Legends

Valorant

Preset	EPYC 8434P	EPYC 9254
1080p
low	1023 FPS	868 FPS
medium	913 FPS	793 FPS
high	772 FPS	684 FPS
ultra	651 FPS	605 FPS
1440p
low	833 FPS	695 FPS
medium	712 FPS	610 FPS
high	598 FPS	523 FPS
ultra	492 FPS	453 FPS
4K
low	600 FPS	502 FPS
medium	524 FPS	451 FPS
high	451 FPS	397 FPS
ultra	376 FPS	340 FPS

Open EPYC 8434P Open EPYC 9254

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of EPYC 8434P and EPYC 9254

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.

EPYC 9254

The EPYC 9254 is manufactured by AMD. It was released in 10 November 2022 (3 years ago). It is based on the Genoa (2022−2023) architecture. It features 24 cores and 48 threads. Base frequency is 2.9 GHz, with boost up to 4.15 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 5 nm, 6 nm process technology. Socket: SP5. Thermal design power (TDP): 200 Watt. Memory support: DDR5-4800. Passmark benchmark score: 64,344 points. Launch price was $2,299.

⚡

Processing Power

The EPYC 8434P packs 48 cores / 96 threads, while the EPYC 9254 offers 24 cores / 48 threads — the EPYC 8434P has 24 more cores. Boost clocks reach 3.1 GHz on the EPYC 8434P versus 4.15 GHz on the EPYC 9254 — a 29% clock advantage for the EPYC 9254 (base: 2.5 GHz vs 2.9 GHz). The EPYC 8434P uses the Siena (2023−2024) architecture (5 nm), while the EPYC 9254 uses Genoa (2022−2023) (5 nm, 6 nm). In PassMark, the EPYC 8434P scores 66,490 against the EPYC 9254's 64,344 — a 3.3% lead for the EPYC 8434P. Both processors carry 128 MB (total) of L3 cache.

Feature	EPYC 8434P	EPYC 9254
Cores / Threads	48 / 96+100%	24 / 48
Boost Clock	3.1 GHz	4.15 GHz+34%
Base Clock	2.5 GHz	2.9 GHz+16%
L3 Cache	128 MB (total)	128 MB (total)
L2 Cache	1 MB (per core)	1 MB (per core)
Process	5 nm	5 nm, 6 nm
Architecture	Siena (2023−2024)	Genoa (2022−2023)
PassMark	66,490+3%	64,344
Geekbench 6 Single	—	2,233
Geekbench 6 Multi	—	18,023

🧠

Memory & Platform

The EPYC 8434P uses the SP6 socket (PCIe 4.0), while the EPYC 9254 uses SP5 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 4800 on the EPYC 8434P versus DDR5-4800 on the EPYC 9254 — the EPYC 8434P supports 199.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 9254 supports up to 6144 GB of RAM compared to 1152 — 136.8% more capacity for professional workloads. Memory channels: 6 (EPYC 8434P) vs 12 (EPYC 9254). PCIe lanes: 96 (EPYC 8434P) vs 128 (EPYC 9254) — the EPYC 9254 offers 32 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SP6 (EPYC 8434P) and SP5 (EPYC 9254).

Feature	EPYC 8434P	EPYC 9254
Socket	SP6	SP5
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	4800+95900%	DDR5-4800
Max RAM Capacity	1152	6144 GB+559240433%
RAM Channels	6	12+100%
ECC Support	Yes	Yes
PCIe Lanes	96	128+33%

🔧

Advanced Features

Neither processor supports overclocking. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: VT-x, VT-d (EPYC 8434P) vs AMD-V (EPYC 9254). Primary use case: EPYC 9254 targets Enterprise Server. Direct competitor: EPYC 8434P rivals Xeon Platinum 8452Y; EPYC 9254 rivals Xeon Platinum 8468.

Feature	EPYC 8434P	EPYC 9254
Integrated GPU	No	No
IGPU Model	None	None
Unlocked	No	No
AVX-512	Yes	Yes
Virtualization	VT-x, VT-d	AMD-V
Target Use	—	Enterprise Server

💰

Value Analysis

The EPYC 8434P launched at $1517 MSRP, while the EPYC 9254 debuted at $3761. On MSRP ($1517 vs $3761), the EPYC 8434P is $2244 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 8434P delivers 43.8 pts/$ vs 17.1 pts/$ for the EPYC 9254 — making the EPYC 8434P the 87.7% better value option.