Pentium 6805 vs Xeon X5647
Pentium 6805
Xeon X5647
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 X5647 is on rank 593, so the Xeon X5647 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 X5647
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Pentium 6805 | Xeon X5647 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| 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 X5647 |
|---|---|---|
| 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 X5647
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 X5647
The Xeon X5647 is manufactured by Intel. It was released in 14 February 2011 (14 years ago). It is based on the Westmere-EP (2010−2011) architecture. It features 4 cores and 8 threads. Base frequency is 2.93 GHz, with boost up to 3.2 GHz. L3 cache: 12 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1366. Thermal design power (TDP): 130 Watt. Memory support: DDR3. Passmark benchmark score: 4,441 points. Launch price was $175.
Processing Power
The Pentium 6805 packs 2 cores / 4 threads, while the Xeon X5647 offers 4 cores / 8 threads — the Xeon X5647 has 2 more cores. Boost clocks reach 3 GHz on the Pentium 6805 versus 3.2 GHz on the Xeon X5647 — a 6.5% clock advantage for the Xeon X5647 (base: 1.1 GHz vs 2.93 GHz). The Pentium 6805 uses the Ice Lake-Y (2020) architecture (10 nm), while the Xeon X5647 uses Westmere-EP (2010−2011) (32 nm). In PassMark, the Pentium 6805 scores 4,424 against the Xeon X5647's 4,441 — a 0.4% lead for the Xeon X5647. L3 cache: 4 MB (total) on the Pentium 6805 vs 12 MB (total) on the Xeon X5647.
| Feature | Pentium 6805 | Xeon X5647 |
|---|---|---|
| Cores / Threads | 2 / 4 | 4 / 8+100% |
| Boost Clock | 3 GHz | 3.2 GHz+7% |
| Base Clock | 1.1 GHz | 2.93 GHz+166% |
| 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 | 4,441 |
Memory & Platform
The Pentium 6805 uses the FCBGA1526 socket (PCIe 3.0), while the Xeon X5647 uses LGA1366 (PCIe 5.0) — making them incompatible on the same motherboard.
| Feature | Pentium 6805 | Xeon X5647 |
|---|---|---|
| Socket | FCBGA1526 | LGA1366 |
| PCIe Generation | PCIe 3.0 | PCIe 5.0+67% |
| Max RAM Speed | — | DDR3-1066 |
| RAM Channels | — | 3 |
| ECC Support | — | ✅ |
Advanced Features
Virtualization: not specified (Pentium 6805) / VT-x, VT-d (Xeon X5647). Primary use case: Xeon X5647 targets Workstation. Direct competitor: Xeon X5647 rivals Core i7-980X.
| Feature | Pentium 6805 | Xeon X5647 |
|---|---|---|
| Integrated GPU | — | No |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | VT-x, VT-d |
| Target Use | — | Workstation |
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