EPYC 7551P vs Ryzen 9 3950X
EPYC 7551P
Ryzen 9 3950X
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 7551P
Performance Per Dollar Ryzen 9 3950X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | EPYC 7551P | Ryzen 9 3950X |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($329) | ⚠️ Higher cost ($389) |
| Longevity | ✨ Modern (Naples (2017−2018) / 14 nm) | ✨ Modern (Matisse (Zen 2) (2019−2020) / 7 nm, 12 nm) |
💎 Value Proposition
| Insight | EPYC 7551P | Ryzen 9 3950X |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+17%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($329) | ⚠️ Higher cost ($389) |
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 7551P and Ryzen 9 3950X
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.
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.
Processing Power
The EPYC 7551P packs 32 cores / 64 threads, while the Ryzen 9 3950X offers 16 cores / 32 threads — the EPYC 7551P has 16 more cores. Boost clocks reach 3 GHz on the EPYC 7551P versus 4.7 GHz on the Ryzen 9 3950X — a 44.2% clock advantage for the Ryzen 9 3950X (base: 2 GHz vs 3.5 GHz). The EPYC 7551P uses the Naples (2017−2018) architecture (14 nm), while the Ryzen 9 3950X uses Matisse (Zen 2) (2019−2020) (7 nm, 12 nm). In PassMark, the EPYC 7551P scores 38,111 against the Ryzen 9 3950X's 38,519 — a 1.1% lead for the Ryzen 9 3950X. L3 cache: 64 MB (total) on the EPYC 7551P vs 64 MB on the Ryzen 9 3950X.
| Feature | EPYC 7551P | Ryzen 9 3950X |
|---|---|---|
| Cores / Threads | 32 / 64+100% | 16 / 32 |
| Boost Clock | 3 GHz | 4.7 GHz+57% |
| Base Clock | 2 GHz | 3.5 GHz+75% |
| L3 Cache | 64 MB (total) | 64 MB |
| L2 Cache | 512K (per core) | 512K (per core) |
| Process | 14 nm | 7 nm, 12 nm-50% |
| Architecture | Naples (2017−2018) | Matisse (Zen 2) (2019−2020) |
| PassMark | 38,111 | 38,519+1% |
Memory & Platform
The EPYC 7551P uses the TR4 socket (PCIe 4.0), while the Ryzen 9 3950X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 2666 on the EPYC 7551P versus DDR4-3200 on the Ryzen 9 3950X — 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: 8 (EPYC 7551P) vs 2 (Ryzen 9 3950X). PCIe lanes: 128 (EPYC 7551P) vs 24 (Ryzen 9 3950X) — the EPYC 7551P offers 104 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SP3 (EPYC 7551P) and X570,B550 (Ryzen 9 3950X).
| Feature | EPYC 7551P | Ryzen 9 3950X |
|---|---|---|
| Socket | TR4 | AM4 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | 2666+66550% | DDR4-3200 |
| Max RAM Capacity | 2048 | 128 GB+6553500% |
| RAM Channels | 8+300% | 2 |
| ECC Support | ✅ | ❌ |
| PCIe Lanes | 128+433% | 24 |
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, IOMMU (EPYC 7551P) vs AMD-V (Ryzen 9 3950X). Direct competitor: EPYC 7551P rivals Xeon Platinum 8160.
| Feature | EPYC 7551P | Ryzen 9 3950X |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | — |
| Unlocked | No | Yes |
| AVX-512 | Yes | No |
| Virtualization | AMD-V, IOMMU | AMD-V |
Value Analysis
The EPYC 7551P launched at $2100 MSRP, while the Ryzen 9 3950X debuted at $749. At current prices ($329 vs $389), the EPYC 7551P is $60 cheaper. In terms of value (PassMark points per dollar), the EPYC 7551P delivers 115.8 pts/$ vs 99.0 pts/$ for the Ryzen 9 3950X — making the EPYC 7551P the 15.7% better value option.
| Feature | EPYC 7551P | Ryzen 9 3950X |
|---|---|---|
| MSRP | $2100 | $749-64% |
| Avg Price (30d) | $329-15% | $389 |
| Performance per Dollar | 115.8+17% | 99.0 |
| Release Date | 2017 | 2019 |
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