
EPYC 8434P

Xeon w7-3555
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 8434P
Performance Per Dollar Xeon w7-3555
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | EPYC 8434P | Xeon w7-3555 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($3,137) | ✅ More affordable ($2,199) |
| Longevity | ✨ Modern (Siena (2023−2024) / 5 nm) | ✨ Modern (Sapphire Rapids (2023−2024) / Intel 7 nm) |
💎 Value Proposition
| Insight | EPYC 8434P | Xeon w7-3555 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+45%) |
| Upfront Cost | ⚠️ Higher cost ($3,137) | ✅ More affordable ($2,199) |
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 8434P and Xeon w7-3555

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.

Xeon w7-3555
The Xeon w7-3555 is manufactured by Intel. It was released in 24 August 2024 (1 year ago). It is based on the Sapphire Rapids (2023−2024) architecture. It features 28 cores and 56 threads. Base frequency is 2.7 GHz, with boost up to 4.8 GHz. L3 cache: 75 MB. L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 325 Watt. Memory support: DDR5-4800. Passmark benchmark score: 67,754 points. Launch price was $2,339.
Processing Power
The EPYC 8434P packs 48 cores / 96 threads, while the Xeon w7-3555 offers 28 cores / 56 threads — the EPYC 8434P has 20 more cores. Boost clocks reach 3.1 GHz on the EPYC 8434P versus 4.8 GHz on the Xeon w7-3555 — a 43% clock advantage for the Xeon w7-3555 (base: 2.5 GHz vs 2.7 GHz). The EPYC 8434P uses the Siena (2023−2024) architecture (5 nm), while the Xeon w7-3555 uses Sapphire Rapids (2023−2024) (Intel 7 nm). In PassMark, the EPYC 8434P scores 66,490 against the Xeon w7-3555's 67,754 — a 1.9% lead for the Xeon w7-3555. L3 cache: 128 MB (total) on the EPYC 8434P vs 75 MB on the Xeon w7-3555.
| Feature | EPYC 8434P | Xeon w7-3555 |
|---|---|---|
| Cores / Threads | 48 / 96+71% | 28 / 56 |
| Boost Clock | 3.1 GHz | 4.8 GHz+55% |
| Base Clock | 2.5 GHz | 2.7 GHz+8% |
| L3 Cache | 128 MB (total)+71% | 75 MB |
| L2 Cache | 1 MB (per core) | 2 MB (per core)+100% |
| Process | 5 nm-29% | Intel 7 nm |
| Architecture | Siena (2023−2024) | Sapphire Rapids (2023−2024) |
| PassMark | 66,490 | 67,754+2% |
| Geekbench 6 Single | — | 2,300 |
| Geekbench 6 Multi | — | 17,120 |
Memory & Platform
The EPYC 8434P uses the SP6 socket (PCIe 4.0), while the Xeon w7-3555 uses LGA4677 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 4800 on the EPYC 8434P versus DDR5-4800 on the Xeon w7-3555 — the EPYC 8434P supports 199.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon w7-3555 supports up to 4096 GB of RAM compared to 1152 — 112.2% more capacity for professional workloads. Memory channels: 6 (EPYC 8434P) vs 8 (Xeon w7-3555). PCIe lanes: 96 (EPYC 8434P) vs 112 (Xeon w7-3555) — the Xeon w7-3555 offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SP6 (EPYC 8434P) and W790 (Xeon w7-3555).
| Feature | EPYC 8434P | Xeon w7-3555 |
|---|---|---|
| Socket | SP6 | LGA4677 |
| PCIe Generation | PCIe 4.0 | PCIe 5.0+25% |
| Max RAM Speed | 4800+95900% | DDR5-4800 |
| Max RAM Capacity | 1152 | 4096 GB+372826922% |
| RAM Channels | 6 | 8+33% |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 96 | 112+17% |
Advanced Features
Only the Xeon w7-3555 has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: VT-x, VT-d (EPYC 8434P) vs true (Xeon w7-3555). Direct competitor: EPYC 8434P rivals Xeon Platinum 8452Y; Xeon w7-3555 rivals Threadripper PRO 7965WX.
| Feature | EPYC 8434P | Xeon w7-3555 |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | No | Yes |
| AVX-512 | Yes | Yes |
| Virtualization | VT-x, VT-d | true |
Value Analysis
The EPYC 8434P launched at $1517 MSRP, while the Xeon w7-3555 debuted at $2749. At current prices ($3137 vs $2199), the Xeon w7-3555 is $938 cheaper. In terms of value (PassMark points per dollar), the EPYC 8434P delivers 21.2 pts/$ vs 30.8 pts/$ for the Xeon w7-3555 — making the Xeon w7-3555 the 37% better value option.
| Feature | EPYC 8434P | Xeon w7-3555 |
|---|---|---|
| MSRP | $1517-45% | $2749 |
| Avg Price (30d) | $3137 | $2199-30% |
| Performance per Dollar | 21.2 | 30.8+45% |
| Release Date | 2023 | 2024 |
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