EPYC 8534P vs EPYC 9255
EPYC 8534P
EPYC 9255
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 8534P
Performance Per Dollar EPYC 9255
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | EPYC 8534P | EPYC 9255 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($5,529) | ✅ More affordable ($1,934) |
| Longevity | ✨ Modern (Siena (2023−2024) / 5 nm) | ✨ Modern (Turin (2024) / 4 nm) |
💎 Value Proposition
| Insight | EPYC 8534P | EPYC 9255 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+201%) |
| Upfront Cost | ⚠️ Higher cost ($5,529) | ✅ More affordable ($1,934) |
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 8534P and EPYC 9255
EPYC 8534P
The EPYC 8534P 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 64 cores and 128 threads. Base frequency is 2.3 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: 71,900 points. Launch price was $4,950.
EPYC 9255
The EPYC 9255 is manufactured by AMD. It was released in 10 October 2024 (1 year ago). It is based on the Turin (2024) architecture. It features 24 cores and 48 threads. Base frequency is 3.25 GHz, with boost up to 4.8 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: SP5. Thermal design power (TDP): 200 Watt. Memory support: DDR5. Passmark benchmark score: 75,809 points. Launch price was $2,495.
Processing Power
The EPYC 8534P packs 64 cores / 128 threads, while the EPYC 9255 offers 24 cores / 48 threads — the EPYC 8534P has 40 more cores. Boost clocks reach 3.1 GHz on the EPYC 8534P versus 4.8 GHz on the EPYC 9255 — a 43% clock advantage for the EPYC 9255 (base: 2.3 GHz vs 3.25 GHz). The EPYC 8534P uses the Siena (2023−2024) architecture (5 nm), while the EPYC 9255 uses Turin (2024) (4 nm). In PassMark, the EPYC 8534P scores 71,900 against the EPYC 9255's 75,809 — a 5.3% lead for the EPYC 9255. Both processors carry 128 MB (total) of L3 cache.
| Feature | EPYC 8534P | EPYC 9255 |
|---|---|---|
| Cores / Threads | 64 / 128+167% | 24 / 48 |
| Boost Clock | 3.1 GHz | 4.8 GHz+55% |
| Base Clock | 2.3 GHz | 3.25 GHz+41% |
| L3 Cache | 128 MB (total) | 128 MB (total) |
| L2 Cache | 1 MB (per core) | 1 MB (per core) |
| Process | 5 nm | 4 nm-20% |
| Architecture | Siena (2023−2024) | Turin (2024) |
| PassMark | 71,900 | 75,809+5% |
| Geekbench 6 Single | 1,678 | — |
| Geekbench 6 Multi | 18,882 | — |
Memory & Platform
The EPYC 8534P uses the SP6 socket (PCIe 4.0), while the EPYC 9255 uses SP5 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-4800 on the EPYC 8534P versus 4800 on the EPYC 9255 — the EPYC 9255 supports 199.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 9255 supports up to 6144 of RAM compared to 1152 GB — 136.8% more capacity for professional workloads. Memory channels: 6 (EPYC 8534P) vs 12 (EPYC 9255). PCIe lanes: 96 (EPYC 8534P) vs 128 (EPYC 9255) — the EPYC 9255 offers 32 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SP6 (EPYC 8534P) and SP5 (EPYC 9255).
| Feature | EPYC 8534P | EPYC 9255 |
|---|---|---|
| Socket | SP6 | SP5 |
| PCIe Generation | PCIe 4.0 | PCIe 5.0+25% |
| Max RAM Speed | DDR5-4800 | 4800+95900% |
| Max RAM Capacity | 1152 GB+19660700% | 6144 |
| RAM Channels | 6 | 12+100% |
| ECC Support | ✅ | ✅ |
| 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: AMD-V (EPYC 8534P) vs VT-x, VT-d, SEV-SNP (EPYC 9255). Primary use case: EPYC 8534P targets Cloud Server. Direct competitor: EPYC 8534P rivals Xeon Platinum 8452Y; EPYC 9255 rivals Xeon Platinum 8480+.
| Feature | EPYC 8534P | EPYC 9255 |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | No | No |
| AVX-512 | Yes | Yes |
| Virtualization | AMD-V | VT-x, VT-d, SEV-SNP |
| Target Use | Cloud Server | — |
Value Analysis
The EPYC 8534P launched at $5529 MSRP, while the EPYC 9255 debuted at $2495. At current prices ($5529 vs $1934), the EPYC 9255 is $3595 cheaper. In terms of value (PassMark points per dollar), the EPYC 8534P delivers 13.0 pts/$ vs 39.2 pts/$ for the EPYC 9255 — making the EPYC 9255 the 100.4% better value option.
| Feature | EPYC 8534P | EPYC 9255 |
|---|---|---|
| MSRP | $5529 | $2495-55% |
| Avg Price (30d) | $5529 | $1934-65% |
| Performance per Dollar | 13.0 | 39.2+202% |
| Release Date | 2023 | 2024 |
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