
Opteron X3421 vs Ryzen 5 5600

Opteron X3421

Ryzen 5 5600
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. The Opteron X3421 is positioned at rank #102 in our cost-efficiency ranking, representing a Balanced cost-benefit for your build. 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 Opteron X3421
Performance Per Dollar Ryzen 5 5600
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Opteron X3421 | Ryzen 5 5600 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($115) |
| Longevity | ✨ Modern (Excavator (2017−2018) / 28 nm) | ✨ Modern (Vermeer (2020−2025) / 7 nm) |
💎 Value Proposition
| Insight | Opteron X3421 | Ryzen 5 5600 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($115) |
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 Opteron X3421 and Ryzen 5 5600

Opteron X3421
The Opteron X3421 is manufactured by AMD. It was released in 2015-01-01. It is based on the Excavator (2017−2018) architecture. It features 4 cores and 4 threads. Base frequency is 2.1 GHz, with boost up to 3.4 GHz. L2 cache: 2 MB (total). Built on 28 nm process technology. Socket: FP4. Thermal design power (TDP): 15 Watt. Memory support: DDR4. Passmark benchmark score: 3,306 points. Launch price was $800.

Ryzen 5 5600
The Ryzen 5 5600 is manufactured by AMD. It was released in 20 April 2022 (3 years ago). It is based on the Vermeer (2020−2025) architecture. It features 6 cores and 12 threads. Base frequency is 3.5 GHz, with boost up to 4.4 GHz. L3 cache: 32 MB (total). L2 cache: 512K (per core). Built on 7 nm process technology. Socket: AM4. Thermal design power (TDP): 65 Watt. Memory support: DDR4-3200. Passmark benchmark score: 21,550 points. Launch price was $299.
Processing Power
The Opteron X3421 packs 4 cores / 4 threads, while the Ryzen 5 5600 offers 6 cores / 12 threads — the Ryzen 5 5600 has 2 more cores. Boost clocks reach 3.4 GHz on the Opteron X3421 versus 4.4 GHz on the Ryzen 5 5600 — a 25.6% clock advantage for the Ryzen 5 5600 (base: 2.1 GHz vs 3.5 GHz). The Opteron X3421 uses the Excavator (2017−2018) architecture (28 nm), while the Ryzen 5 5600 uses Vermeer (2020−2025) (7 nm). In PassMark, the Opteron X3421 scores 3,306 against the Ryzen 5 5600's 21,550 — a 146.8% lead for the Ryzen 5 5600.
| Feature | Opteron X3421 | Ryzen 5 5600 |
|---|---|---|
| Cores / Threads | 4 / 4 | 6 / 12+50% |
| Boost Clock | 3.4 GHz | 4.4 GHz+29% |
| Base Clock | 2.1 GHz | 3.5 GHz+67% |
| L3 Cache | — | 32 MB (total) |
| L2 Cache | 2 MB (total)+300% | 512K (per core) |
| Process | 28 nm | 7 nm-75% |
| Architecture | Excavator (2017−2018) | Vermeer (2020−2025) |
| PassMark | 3,306 | 21,550+552% |
| Cinebench R23 Multi | — | 11,077 |
| Geekbench 6 Single | — | 2,052 |
| Geekbench 6 Multi | — | 8,600 |
Memory & Platform
The Opteron X3421 uses the FP4 socket (PCIe 3.0), while the Ryzen 5 5600 uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard.
| Feature | Opteron X3421 | Ryzen 5 5600 |
|---|---|---|
| Socket | FP4 | AM4 |
| PCIe Generation | PCIe 3.0 | PCIe 4.0+33% |
| Max RAM Speed | — | DDR4-3200 |
| Max RAM Capacity | — | 128 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ✅ |
| PCIe Lanes | — | 24 |
Advanced Features
Virtualization: not specified (Opteron X3421) / AMD-V (Ryzen 5 5600). Primary use case: Ryzen 5 5600 targets Desktop.
| Feature | Opteron X3421 | Ryzen 5 5600 |
|---|---|---|
| Integrated GPU | — | No |
| Unlocked | — | Yes |
| AVX-512 | — | No |
| Virtualization | — | AMD-V |
| Target Use | — | Desktop |
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