Xeon L5639 vs Phenom II X3 P840
Xeon L5639
Phenom II X3 P840
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 L5639 is positioned at rank 595 and the Phenom II X3 P840 is on rank 45, so the Phenom II X3 P840 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon L5639
Performance Per Dollar Phenom II X3 P840
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon L5639 | Phenom II X3 P840 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Westmere-EP (2010−2011) / 32 nm) | 🛑 Legacy (Champlain (2010−2011) / 45 nm) |
💎 Value Proposition
| Insight | Xeon L5639 | Phenom II X3 P840 |
|---|---|---|
| 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 L5639 and Phenom II X3 P840
Xeon L5639
The Xeon L5639 is manufactured by Intel. It was released in 2015-01-01. It is based on the Westmere-EP (2010−2011) architecture. It features 6 cores and 12 threads. Base frequency is 2.133 GHz, with boost up to 2.67 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: 4,419 points. Launch price was $800.
Phenom II X3 P840
The Phenom II X3 P840 is manufactured by AMD. It was released in 2009-01-01. It is based on the Champlain (2010−2011) architecture. It features 3 cores and 3 threads. Max frequency: 1.9 GHz. L2 cache: 1.5 MB. Built on 45 nm process technology. Socket: S1. Thermal design power (TDP): 1.5 MB. Memory support: DDR3. Passmark benchmark score: 4,425 points. Launch price was $149.
Processing Power
The Xeon L5639 packs 6 cores / 12 threads, while the Phenom II X3 P840 offers 3 cores / 3 threads — the Xeon L5639 has 3 more cores. Boost clocks reach 2.67 GHz on the Xeon L5639 versus 1.9 GHz on the Phenom II X3 P840 — a 33.7% clock advantage for the Xeon L5639. The Xeon L5639 uses the Westmere-EP (2010−2011) architecture (32 nm), while the Phenom II X3 P840 uses Champlain (2010−2011) (45 nm). In PassMark, the Xeon L5639 scores 4,419 against the Phenom II X3 P840's 4,425 — a 0.1% lead for the Phenom II X3 P840.
| Feature | Xeon L5639 | Phenom II X3 P840 |
|---|---|---|
| Cores / Threads | 6 / 12+100% | 3 / 3 |
| Boost Clock | 2.67 GHz+41% | 1.9 GHz |
| Base Clock | 2.133 GHz | — |
| L3 Cache | 12 MB (total) | — |
| L2 Cache | 256 kB (per core) | 1.5 MB+500% |
| Process | 32 nm-29% | 45 nm |
| Architecture | Westmere-EP (2010−2011) | Champlain (2010−2011) |
| PassMark | 4,419 | 4,425 |
Memory & Platform
The Xeon L5639 uses the LGA1366 socket (PCIe 4.0), while the Phenom II X3 P840 uses S1 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Xeon L5639 | Phenom II X3 P840 |
|---|---|---|
| Socket | LGA1366 | S1 |
| 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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