CPU
GPU
Xeon L5638
Xeon L5506
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 Xeon L5638 is positioned at rank 644 and the Xeon L5506 is on rank 645, so the Xeon L5638 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon L5638
Performance Per Dollar Xeon L5506
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon L5638 | Xeon L5506 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Westmere-EP (2010−2011) / 32 nm) | 🛑 Legacy (Gainestown (2009−2010) / 45 nm) |
💎 Value Proposition
| Insight | Xeon L5638 | Xeon L5506 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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 Xeon L5638 and Xeon L5506
Xeon L5638
The Xeon L5638 is manufactured by Intel. It was released in 16 March 2010 (15 years ago). It is based on the Westmere-EP (2010−2011) architecture. It features 6 cores and 12 threads. Base frequency is 2 GHz, with boost up to 2.4 GHz. L3 cache: 12 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1366. Thermal design power (TDP): 60 Watt. Memory support: DDR3. Passmark benchmark score: 3,707 points. Launch price was $90.
Xeon L5506
The Xeon L5506 is manufactured by Intel. It was released in 30 March 2009 (16 years ago). It is based on the Gainestown (2009−2010) architecture. It features 4 cores and 4 threads. Base frequency is 2.13 GHz, with boost up to 0.13 GHz. L3 cache: 4 MB (total). L2 cache: 256 kB (per core). Built on 45 nm process technology. Socket: LGA1366. Thermal design power (TDP): 60 Watt. Memory support: DDR3. Passmark benchmark score: 3,706 points. Launch price was $125.
Processing Power
The Xeon L5638 packs 6 cores / 12 threads, while the Xeon L5506 offers 4 cores / 4 threads — the Xeon L5638 has 2 more cores. Boost clocks reach 2.4 GHz on the Xeon L5638 versus 0.13 GHz on the Xeon L5506 — a 179.4% clock advantage for the Xeon L5638 (base: 2 GHz vs 2.13 GHz). The Xeon L5638 uses the Westmere-EP (2010−2011) architecture (32 nm), while the Xeon L5506 uses Gainestown (2009−2010) (45 nm). In PassMark, the Xeon L5638 scores 3,707 against the Xeon L5506's 3,706 — a 0% lead for the Xeon L5638. L3 cache: 12 MB (total) on the Xeon L5638 vs 4 MB (total) on the Xeon L5506.
| Feature | Xeon L5638 | Xeon L5506 |
|---|---|---|
| Cores / Threads | 6 / 12+50% | 4 / 4 |
| Boost Clock | 2.4 GHz+1746% | 0.13 GHz |
| Base Clock | 2 GHz | 2.13 GHz+6% |
| L3 Cache | 12 MB (total)+200% | 4 MB (total) |
| L2 Cache | 256 kB (per core) | 256 kB (per core) |
| Process | 32 nm-29% | 45 nm |
| Architecture | Westmere-EP (2010−2011) | Gainestown (2009−2010) |
| PassMark | 3,707 | 3,706 |
Memory & Platform
Both processors use the LGA1366 socket with PCIe 4.0.
| Feature | Xeon L5638 | Xeon L5506 |
|---|---|---|
| Socket | LGA1366 | LGA1366 |
| PCIe Generation | PCIe 4.0+100% | PCIe 2.0 |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
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