Xeon w9-3475X vs EPYC 8434P
Xeon w9-3475X
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 Xeon w9-3475X
Performance Per Dollar EPYC 8434P
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon w9-3475X | EPYC 8434P |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($3,930) | ✅ More affordable ($3,137) |
| Longevity | ✨ Modern (Sapphire Rapids (2023−2024) / Intel 7 nm) | ✨ Modern (Siena (2023−2024) / 5 nm) |
💎 Value Proposition
| Insight | Xeon w9-3475X | EPYC 8434P |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+28%) |
| Upfront Cost | ⚠️ Higher cost ($3,930) | ✅ More affordable ($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 Xeon w9-3475X and EPYC 8434P
Xeon w9-3475X
The Xeon w9-3475X is manufactured by Intel. It was released in 15 February 2023 (2 years ago). It is based on the Sapphire Rapids (2023−2024) architecture. It features 36 cores and 72 threads. Base frequency is 2.2 GHz, with boost up to 4.8 GHz. L3 cache: 82.5 MB. L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 300 Watt. Memory support: DDR5-4800. Passmark benchmark score: 65,077 points. Launch price was $3,739.
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 Xeon w9-3475X packs 36 cores / 72 threads, while the EPYC 8434P offers 48 cores / 96 threads — the EPYC 8434P has 12 more cores. Boost clocks reach 4.8 GHz on the Xeon w9-3475X versus 3.1 GHz on the EPYC 8434P — a 43% clock advantage for the Xeon w9-3475X (base: 2.2 GHz vs 2.5 GHz). The Xeon w9-3475X uses the Sapphire Rapids (2023−2024) architecture (Intel 7 nm), while the EPYC 8434P uses Siena (2023−2024) (5 nm). In PassMark, the Xeon w9-3475X scores 65,077 against the EPYC 8434P's 66,490 — a 2.1% lead for the EPYC 8434P. L3 cache: 82.5 MB on the Xeon w9-3475X vs 128 MB (total) on the EPYC 8434P.
| Feature | Xeon w9-3475X | EPYC 8434P |
|---|---|---|
| Cores / Threads | 36 / 72 | 48 / 96+33% |
| Boost Clock | 4.8 GHz+55% | 3.1 GHz |
| Base Clock | 2.2 GHz | 2.5 GHz+14% |
| L3 Cache | 82.5 MB | 128 MB (total)+55% |
| L2 Cache | 2 MB (per core)+100% | 1 MB (per core) |
| Process | Intel 7 nm | 5 nm-29% |
| Architecture | Sapphire Rapids (2023−2024) | Siena (2023−2024) |
| PassMark | 65,077 | 66,490+2% |
| Geekbench 6 Single | 1,814 | — |
| Geekbench 6 Multi | 44,869 | — |
Memory & Platform
The Xeon w9-3475X uses the LGA4677 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 Xeon w9-3475X 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 Xeon w9-3475X supports up to 4096 GB of RAM compared to 1152 — 112.2% more capacity for professional workloads. Memory channels: 8 (Xeon w9-3475X) vs 6 (EPYC 8434P). PCIe lanes: 112 (Xeon w9-3475X) vs 96 (EPYC 8434P) — the Xeon w9-3475X offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: W790 (Xeon w9-3475X) and SP6 (EPYC 8434P).
| Feature | Xeon w9-3475X | EPYC 8434P |
|---|---|---|
| Socket | LGA4677 | SP6 |
| PCIe Generation | PCIe 5.0+25% | PCIe 4.0 |
| Max RAM Speed | DDR5-4800 | 4800+95900% |
| Max RAM Capacity | 4096 GB+372826922% | 1152 |
| RAM Channels | 8+33% | 6 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 112+17% | 96 |
Advanced Features
Only the Xeon w9-3475X 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: true (Xeon w9-3475X) vs VT-x, VT-d (EPYC 8434P). Direct competitor: Xeon w9-3475X rivals Threadripper PRO 7965WX; EPYC 8434P rivals Xeon Platinum 8452Y.
| Feature | Xeon w9-3475X | EPYC 8434P |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | Yes | No |
| AVX-512 | Yes | Yes |
| Virtualization | true | VT-x, VT-d |
Value Analysis
The Xeon w9-3475X launched at $3739 MSRP, while the EPYC 8434P debuted at $1517. At current prices ($3930 vs $3137), the EPYC 8434P is $793 cheaper. In terms of value (PassMark points per dollar), the Xeon w9-3475X delivers 16.6 pts/$ vs 21.2 pts/$ for the EPYC 8434P — making the EPYC 8434P the 24.6% better value option.
| Feature | Xeon w9-3475X | EPYC 8434P |
|---|---|---|
| MSRP | $3739 | $1517-59% |
| Avg Price (30d) | $3930 | $3137-20% |
| Performance per Dollar | 16.6 | 21.2+28% |
| Release Date | 2023 | 2023 |
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