
Pentium 6805 vs Xeon L5639

Pentium 6805

Xeon L5639
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 Pentium 6805 is positioned at rank 744 and the Xeon L5639 is on rank 595, 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 Pentium 6805
Performance Per Dollar Xeon L5639
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Pentium 6805 | Xeon L5639 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($161) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Ice Lake-Y (2020) / 10 nm) | 🛑 Legacy (Westmere-EP (2010−2011) / 32 nm) |
💎 Value Proposition
| Insight | Pentium 6805 | Xeon L5639 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($161) | ✅ More affordable ($0) |
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 Pentium 6805 and Xeon L5639

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.

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.
Processing Power
The Pentium 6805 packs 2 cores / 4 threads, while the Xeon L5639 offers 6 cores / 12 threads — the Xeon L5639 has 4 more cores. Boost clocks reach 3 GHz on the Pentium 6805 versus 2.67 GHz on the Xeon L5639 — a 11.6% clock advantage for the Pentium 6805 (base: 1.1 GHz vs 2.133 GHz). The Pentium 6805 uses the Ice Lake-Y (2020) architecture (10 nm), while the Xeon L5639 uses Westmere-EP (2010−2011) (32 nm). In PassMark, the Pentium 6805 scores 4,424 against the Xeon L5639's 4,419 — a 0.1% lead for the Pentium 6805. L3 cache: 4 MB (total) on the Pentium 6805 vs 12 MB (total) on the Xeon L5639.
| Feature | Pentium 6805 | Xeon L5639 |
|---|---|---|
| Cores / Threads | 2 / 4 | 6 / 12+200% |
| Boost Clock | 3 GHz+12% | 2.67 GHz |
| Base Clock | 1.1 GHz | 2.133 GHz+94% |
| L3 Cache | 4 MB (total) | 12 MB (total)+200% |
| L2 Cache | 256 kB (per core) | 256 kB (per core) |
| Process | 10 nm-69% | 32 nm |
| Architecture | Ice Lake-Y (2020) | Westmere-EP (2010−2011) |
| PassMark | 4,424 | 4,419 |
Memory & Platform
The Pentium 6805 uses the FCBGA1526 socket (PCIe 3.0), while the Xeon L5639 uses LGA1366 (PCIe 4.0) — making them incompatible on the same motherboard.
| Feature | Pentium 6805 | Xeon L5639 |
|---|---|---|
| Socket | FCBGA1526 | LGA1366 |
| PCIe Generation | PCIe 3.0 | PCIe 4.0+33% |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.















