Ryzen 7 5800X vs EPYC 7251
Ryzen 7 5800X
EPYC 7251
Popular choices:
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 7 5800X
Performance Per Dollar EPYC 7251
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 7 5800X | EPYC 7251 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($180) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Vermeer (Zen 3) (2020−2022) / 7 nm, 12 nm) | ✨ Modern (Naples (2017−2018) / 14 nm) |
💎 Value Proposition
| Insight | Ryzen 7 5800X | EPYC 7251 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($180) | ✅ More affordable ($0) |
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 7 5800X and EPYC 7251
Ryzen 7 5800X
The Ryzen 7 5800X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen 3) (2020−2022) architecture. It features 8 cores and 16 threads. Base frequency is 3.8 GHz, with boost up to 4.7 GHz. L3 cache: 32 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. Passmark benchmark score: 27,712 points. Launch price was $449.
EPYC 7251
The EPYC 7251 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 8 cores and 16 threads. Base frequency is 2.1 GHz, with boost up to 2.9 GHz. L3 cache: 32 MB (total). L2 cache: 512K (per core). Built on 14 nm process technology. Socket: TR4. Thermal design power (TDP): 120 Watt. Memory support: DDR4 Eight-channel. Passmark benchmark score: 14,935 points. Launch price was $574.
Processing Power
Both the Ryzen 7 5800X and EPYC 7251 share an identical 8-core/16-thread configuration. Boost clocks reach 4.7 GHz on the Ryzen 7 5800X versus 2.9 GHz on the EPYC 7251 — a 47.4% clock advantage for the Ryzen 7 5800X (base: 3.8 GHz vs 2.1 GHz). The Ryzen 7 5800X uses the Vermeer (Zen 3) (2020−2022) architecture (7 nm, 12 nm), while the EPYC 7251 uses Naples (2017−2018) (14 nm). In PassMark, the Ryzen 7 5800X scores 27,712 against the EPYC 7251's 14,935 — a 59.9% lead for the Ryzen 7 5800X. L3 cache: 32 MB on the Ryzen 7 5800X vs 32 MB (total) on the EPYC 7251.
| Feature | Ryzen 7 5800X | EPYC 7251 |
|---|---|---|
| Cores / Threads | 8 / 16 | 8 / 16 |
| Boost Clock | 4.7 GHz+62% | 2.9 GHz |
| Base Clock | 3.8 GHz+81% | 2.1 GHz |
| L3 Cache | 32 MB | 32 MB (total) |
| L2 Cache | 512K (per core) | 512K (per core) |
| Process | 7 nm, 12 nm-50% | 14 nm |
| Architecture | Vermeer (Zen 3) (2020−2022) | Naples (2017−2018) |
| PassMark | 27,712+86% | 14,935 |
Memory & Platform
The Ryzen 7 5800X uses the AM4 socket (PCIe 4.0), while the EPYC 7251 uses TR4 (PCIe 4.0) — making them incompatible on the same motherboard.
| Feature | Ryzen 7 5800X | EPYC 7251 |
|---|---|---|
| Socket | AM4 | TR4 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | DDR4-3200 | — |
| Max RAM Capacity | 128 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ✅ | — |
| PCIe Lanes | 24 | — |
Advanced Features
Virtualization: AMD-V (Ryzen 7 5800X) / not specified (EPYC 7251). Primary use case: Ryzen 7 5800X targets Desktop.
| Feature | Ryzen 7 5800X | EPYC 7251 |
|---|---|---|
| Integrated GPU | No | — |
| Unlocked | Yes | — |
| AVX-512 | No | — |
| Virtualization | AMD-V | — |
| Target Use | Desktop | — |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
You May Also Compare
Similar CPU comparisons based on Ryzen 7 5800X and EPYC 7251
