
Xeon L5639 vs Pentium 6805

Xeon L5639

Pentium 6805
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 Pentium 6805 is on rank 744, so the Xeon L5639 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 Pentium 6805
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon L5639 | Pentium 6805 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($161) |
| Longevity | 🛑 Legacy (Westmere-EP (2010−2011) / 32 nm) | ✨ Modern (Ice Lake-Y (2020) / 10 nm) |
💎 Value Proposition
| Insight | Xeon L5639 | Pentium 6805 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($161) |
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 Pentium 6805

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.

Pentium 6805
The Pentium 6805 is manufactured by Intel. It was released in 1 October 2020 (5 years ago). It is based on the Ice Lake-Y (2020) architecture. It features 2 cores and 4 threads. Base frequency is 1.1 GHz, with boost up to 3 GHz. L3 cache: 4 MB (total). L2 cache: 256 kB (per core). Built on 10 nm process technology. Socket: FCBGA1526. Thermal design power (TDP): 15 Watt. Memory support: DDR4-3200, LPDDR4-3733. Passmark benchmark score: 4,424 points. Launch price was $161.
Processing Power
The Xeon L5639 packs 6 cores / 12 threads, while the Pentium 6805 offers 2 cores / 4 threads — the Xeon L5639 has 4 more cores. Boost clocks reach 2.67 GHz on the Xeon L5639 versus 3 GHz on the Pentium 6805 — a 11.6% clock advantage for the Pentium 6805 (base: 2.133 GHz vs 1.1 GHz). The Xeon L5639 uses the Westmere-EP (2010−2011) architecture (32 nm), while the Pentium 6805 uses Ice Lake-Y (2020) (10 nm). In PassMark, the Xeon L5639 scores 4,419 against the Pentium 6805's 4,424 — a 0.1% lead for the Pentium 6805. L3 cache: 12 MB (total) on the Xeon L5639 vs 4 MB (total) on the Pentium 6805.
| Feature | Xeon L5639 | Pentium 6805 |
|---|---|---|
| Cores / Threads | 6 / 12+200% | 2 / 4 |
| Boost Clock | 2.67 GHz | 3 GHz+12% |
| Base Clock | 2.133 GHz+94% | 1.1 GHz |
| L3 Cache | 12 MB (total)+200% | 4 MB (total) |
| L2 Cache | 256 kB (per core) | 256 kB (per core) |
| Process | 32 nm | 10 nm-69% |
| Architecture | Westmere-EP (2010−2011) | Ice Lake-Y (2020) |
| PassMark | 4,419 | 4,424 |
Memory & Platform
The Xeon L5639 uses the LGA1366 socket (PCIe 4.0), while the Pentium 6805 uses FCBGA1526 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Xeon L5639 | Pentium 6805 |
|---|---|---|
| Socket | LGA1366 | FCBGA1526 |
| PCIe Generation | PCIe 4.0+33% | PCIe 3.0 |
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