
Opteron X3421

Xeon L5609
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. The Opteron X3421 is positioned at rank 102 and the Xeon L5609 is on rank 735, so the Opteron X3421 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Opteron X3421
Performance Per Dollar Xeon L5609
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Opteron X3421 | Xeon L5609 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($229) |
| Longevity | ✨ Modern (Excavator (2017−2018) / 28 nm) | 🛑 Legacy (Westmere-EP (2010−2011) / 32 nm) |
💎 Value Proposition
| Insight | Opteron X3421 | Xeon L5609 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($229) |
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 Xeon L5609

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.

Xeon L5609
The Xeon L5609 is manufactured by Intel. It was released in 2015-01-01. It is based on the Westmere-EP (2010−2011) architecture. It features 4 cores and 4 threads. Base frequency is 1.86 GHz, with boost up to 1.86 GHz. L3 cache: 12 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1366. Thermal design power (TDP): 40 Watt. Memory support: DDR3. Passmark benchmark score: 3,298 points. Launch price was $800.
Processing Power
Both the Opteron X3421 and Xeon L5609 share an identical 4-core/4-thread configuration. Boost clocks reach 3.4 GHz on the Opteron X3421 versus 1.86 GHz on the Xeon L5609 — a 58.6% clock advantage for the Opteron X3421 (base: 2.1 GHz vs 1.86 GHz). The Opteron X3421 uses the Excavator (2017−2018) architecture (28 nm), while the Xeon L5609 uses Westmere-EP (2010−2011) (32 nm). In PassMark, the Opteron X3421 scores 3,306 against the Xeon L5609's 3,298 — a 0.2% lead for the Opteron X3421.
| Feature | Opteron X3421 | Xeon L5609 |
|---|---|---|
| Cores / Threads | 4 / 4 | 4 / 4 |
| Boost Clock | 3.4 GHz+83% | 1.86 GHz |
| Base Clock | 2.1 GHz+13% | 1.86 GHz |
| L3 Cache | — | 12 MB (total) |
| L2 Cache | 2 MB (total)+700% | 256 kB (per core) |
| Process | 28 nm-13% | 32 nm |
| Architecture | Excavator (2017−2018) | Westmere-EP (2010−2011) |
| PassMark | 3,306 | 3,298 |
Memory & Platform
The Opteron X3421 uses the FP4 socket (PCIe 3.0), while the Xeon L5609 uses LGA1366 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Opteron X3421 | Xeon L5609 |
|---|---|---|
| Socket | FP4 | LGA1366 |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
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