EPYC 9254 vs EPYC 8434P
EPYC 9254
EPYC 8434P
Performance Spectrum - CPU
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.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar EPYC 9254
Performance Per Dollar EPYC 8434P
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | EPYC 9254 | EPYC 8434P |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($1,099) | ⚠️ Higher cost ($3,137) |
| Longevity | ✨ Modern (Genoa (2022−2023) / 5 nm, 6 nm) | ✨ Modern (Siena (2023−2024) / 5 nm) |
💎 Value Proposition
| Insight | EPYC 9254 | EPYC 8434P |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+176%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($1,099) | ⚠️ Higher cost ($3,137) |
Performance Check
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.
Technical Specifications
Side-by-side comparison of EPYC 9254 and EPYC 8434P
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.
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 EPYC 9254 packs 24 cores / 48 threads, while the EPYC 8434P offers 48 cores / 96 threads — the EPYC 8434P has 24 more cores. Boost clocks reach 4.15 GHz on the EPYC 9254 versus 3.1 GHz on the EPYC 8434P — a 29% clock advantage for the EPYC 9254 (base: 2.9 GHz vs 2.5 GHz). The EPYC 9254 uses the Genoa (2022−2023) architecture (5 nm, 6 nm), while the EPYC 8434P uses Siena (2023−2024) (5 nm). In PassMark, the EPYC 9254 scores 64,344 against the EPYC 8434P's 66,490 — a 3.3% lead for the EPYC 8434P. Both processors carry 128 MB (total) of L3 cache.
| Feature | EPYC 9254 | EPYC 8434P |
|---|---|---|
| Cores / Threads | 24 / 48 | 48 / 96+100% |
| Boost Clock | 4.15 GHz+34% | 3.1 GHz |
| Base Clock | 2.9 GHz+16% | 2.5 GHz |
| L3 Cache | 128 MB (total) | 128 MB (total) |
| L2 Cache | 1 MB (per core) | 1 MB (per core) |
| Process | 5 nm, 6 nm | 5 nm |
| Architecture | Genoa (2022−2023) | Siena (2023−2024) |
| PassMark | 64,344 | 66,490+3% |
| Geekbench 6 Single | 2,233 | — |
| Geekbench 6 Multi | 18,023 | — |
Memory & Platform
The EPYC 9254 uses the SP5 socket (PCIe 5.0), while the EPYC 8434P uses SP6 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-4800 on the EPYC 9254 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 9254 supports up to 6144 GB of RAM compared to 1152 — 136.8% more capacity for professional workloads. Memory channels: 12 (EPYC 9254) vs 6 (EPYC 8434P). PCIe lanes: 128 (EPYC 9254) vs 96 (EPYC 8434P) — the EPYC 9254 offers 32 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SP5 (EPYC 9254) and SP6 (EPYC 8434P).
| Feature | EPYC 9254 | EPYC 8434P |
|---|---|---|
| Socket | SP5 | SP6 |
| PCIe Generation | PCIe 5.0+25% | PCIe 4.0 |
| Max RAM Speed | DDR5-4800 | 4800+95900% |
| Max RAM Capacity | 6144 GB+559240433% | 1152 |
| RAM Channels | 12+100% | 6 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 128+33% | 96 |
Advanced Features
Neither processor supports overclocking. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: AMD-V (EPYC 9254) vs VT-x, VT-d (EPYC 8434P). Primary use case: EPYC 9254 targets Enterprise Server. Direct competitor: EPYC 9254 rivals Xeon Platinum 8468; EPYC 8434P rivals Xeon Platinum 8452Y.
| Feature | EPYC 9254 | EPYC 8434P |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | No | No |
| AVX-512 | Yes | Yes |
| Virtualization | AMD-V | VT-x, VT-d |
| Target Use | Enterprise Server | — |
Value Analysis
The EPYC 9254 launched at $3761 MSRP, while the EPYC 8434P debuted at $1517. At current prices ($1099 vs $3137), the EPYC 9254 is $2038 cheaper. In terms of value (PassMark points per dollar), the EPYC 9254 delivers 58.5 pts/$ vs 21.2 pts/$ for the EPYC 8434P — making the EPYC 9254 the 93.7% better value option.
| Feature | EPYC 9254 | EPYC 8434P |
|---|---|---|
| MSRP | $3761 | $1517-60% |
| Avg Price (30d) | $1099-65% | $3137 |
| Performance per Dollar | 58.5+176% | 21.2 |
| Release Date | 2022 | 2023 |
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