Ryzen 9 3950X vs EPYC 7551P
Ryzen 9 3950X
EPYC 7551P
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 Ryzen 9 3950X
Performance Per Dollar EPYC 7551P
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 9 3950X | EPYC 7551P |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($389) | ✅ More affordable ($329) |
| Longevity | ✨ Modern (Matisse (Zen 2) (2019−2020) / 7 nm, 12 nm) | ✨ Modern (Naples (2017−2018) / 14 nm) |
💎 Value Proposition
| Insight | Ryzen 9 3950X | EPYC 7551P |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+17%) |
| Upfront Cost | ⚠️ Higher cost ($389) | ✅ More affordable ($329) |
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 Ryzen 9 3950X and EPYC 7551P
Ryzen 9 3950X
The Ryzen 9 3950X is manufactured by AMD. It was released in 14 November 2019 (6 years ago). It is based on the Matisse (Zen 2) (2019−2020) architecture. It features 16 cores and 32 threads. Base frequency is 3.5 GHz, with boost up to 4.7 GHz. L3 cache: 64 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 105 Watt. Memory support: DDR4 Dual-channel. Passmark benchmark score: 38,519 points. Launch price was $799.
EPYC 7551P
The EPYC 7551P is manufactured by AMD. It was released in 29 June 2017 (8 years ago). It is based on the Naples (2017−2018) architecture. It features 32 cores and 64 threads. Base frequency is 2 GHz, with boost up to 3 GHz. L3 cache: 64 MB (total). L2 cache: 512K (per core). Built on 14 nm process technology. Socket: TR4. Thermal design power (TDP): 180 Watt. Memory support: DDR4 Eight-channel. Passmark benchmark score: 38,111 points. Launch price was $2,100.
Processing Power
The Ryzen 9 3950X packs 16 cores / 32 threads, while the EPYC 7551P offers 32 cores / 64 threads — the EPYC 7551P has 16 more cores. Boost clocks reach 4.7 GHz on the Ryzen 9 3950X versus 3 GHz on the EPYC 7551P — a 44.2% clock advantage for the Ryzen 9 3950X (base: 3.5 GHz vs 2 GHz). The Ryzen 9 3950X uses the Matisse (Zen 2) (2019−2020) architecture (7 nm, 12 nm), while the EPYC 7551P uses Naples (2017−2018) (14 nm). In PassMark, the Ryzen 9 3950X scores 38,519 against the EPYC 7551P's 38,111 — a 1.1% lead for the Ryzen 9 3950X. L3 cache: 64 MB on the Ryzen 9 3950X vs 64 MB (total) on the EPYC 7551P.
| Feature | Ryzen 9 3950X | EPYC 7551P |
|---|---|---|
| Cores / Threads | 16 / 32 | 32 / 64+100% |
| Boost Clock | 4.7 GHz+57% | 3 GHz |
| Base Clock | 3.5 GHz+75% | 2 GHz |
| L3 Cache | 64 MB | 64 MB (total) |
| L2 Cache | 512K (per core) | 512K (per core) |
| Process | 7 nm, 12 nm-50% | 14 nm |
| Architecture | Matisse (Zen 2) (2019−2020) | Naples (2017−2018) |
| PassMark | 38,519+1% | 38,111 |
Memory & Platform
The Ryzen 9 3950X uses the AM4 socket (PCIe 4.0), while the EPYC 7551P uses TR4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen 9 3950X versus 2666 on the EPYC 7551P — the EPYC 7551P supports 199.4% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 7551P supports up to 2048 of RAM compared to 128 GB — 176.5% more capacity for professional workloads. Memory channels: 2 (Ryzen 9 3950X) vs 8 (EPYC 7551P). PCIe lanes: 24 (Ryzen 9 3950X) vs 128 (EPYC 7551P) — the EPYC 7551P offers 104 more lanes for additional GPUs or NVMe drives. Chipset compatibility: X570,B550 (Ryzen 9 3950X) and SP3 (EPYC 7551P).
| Feature | Ryzen 9 3950X | EPYC 7551P |
|---|---|---|
| Socket | AM4 | TR4 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | DDR4-3200 | 2666+66550% |
| Max RAM Capacity | 128 GB+6553500% | 2048 |
| RAM Channels | 2 | 8+300% |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 24 | 128+433% |
Advanced Features
Only the Ryzen 9 3950X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the EPYC 7551P supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V (Ryzen 9 3950X) vs AMD-V, IOMMU (EPYC 7551P). Direct competitor: EPYC 7551P rivals Xeon Platinum 8160.
| Feature | Ryzen 9 3950X | EPYC 7551P |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | — | None |
| Unlocked | Yes | No |
| AVX-512 | No | Yes |
| Virtualization | AMD-V | AMD-V, IOMMU |
Value Analysis
The Ryzen 9 3950X launched at $749 MSRP, while the EPYC 7551P debuted at $2100. At current prices ($389 vs $329), the EPYC 7551P is $60 cheaper. In terms of value (PassMark points per dollar), the Ryzen 9 3950X delivers 99.0 pts/$ vs 115.8 pts/$ for the EPYC 7551P — making the EPYC 7551P the 15.7% better value option.
| Feature | Ryzen 9 3950X | EPYC 7551P |
|---|---|---|
| MSRP | $749-64% | $2100 |
| Avg Price (30d) | $389 | $329-15% |
| Performance per Dollar | 99.0 | 115.8+17% |
| Release Date | 2019 | 2017 |
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