
Xeon E5205 vs Pentium Gold 6405U

Xeon E5205

Pentium Gold 6405U
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 E5205 is positioned at rank 952 and the Pentium Gold 6405U is on rank 770, so the Pentium Gold 6405U offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon E5205
Performance Per Dollar Pentium Gold 6405U
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon E5205 | Pentium Gold 6405U |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Legacy / 45 nm) | ✨ Modern (Comet Lake-U (2019−2020) / 14 nm) |
💎 Value Proposition
| Insight | Xeon E5205 | Pentium Gold 6405U |
|---|---|---|
| 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 E5205 and Pentium Gold 6405U

Xeon E5205
The Xeon E5205 is manufactured by Intel. It was released in 2015-01-01. Base frequency: 1.86 GHz. L3 cache: 6 MB L2 Cache. Built on 45 nm process technology. Socket: LGA771. Thermal design power (TDP): 65 Watt. Passmark benchmark score: 1,325 points. Launch price was $800.

Pentium Gold 6405U
The Pentium Gold 6405U is manufactured by Intel. It was released in 31 October 2019 (6 years ago). It is based on the Comet Lake-U (2019−2020) architecture. It features 2 cores and 4 threads. Base frequency is 2.4 GHz, with boost up to 2.4 GHz. L3 cache: 2 MB. L2 cache: 1 MB. Built on 14 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 15 Watt. Memory support: DDR4. Passmark benchmark score: 1,320 points. Launch price was $161.
Processing Power
The Pentium Gold 6405U is built on the Comet Lake-U (2019−2020) architecture. In PassMark, the Xeon E5205 scores 1,325 against the Pentium Gold 6405U's 1,320 — a 0.4% lead for the Xeon E5205. L3 cache: 6 MB L2 Cache on the Xeon E5205 vs 2 MB on the Pentium Gold 6405U.
| Feature | Xeon E5205 | Pentium Gold 6405U |
|---|---|---|
| Cores / Threads | — | 2 / 4 |
| Boost Clock | — | 2.4 GHz |
| Base Clock | 1.86 GHz | 2.4 GHz+29% |
| L3 Cache | 6 MB L2 Cache+200% | 2 MB |
| L2 Cache | — | 1 MB |
| Process | 45 nm | 14 nm-69% |
| Architecture | — | Comet Lake-U (2019−2020) |
| PassMark | 1,325 | 1,320 |
Memory & Platform
The Xeon E5205 uses the LGA771 socket (PCIe 2.0), while the Pentium Gold 6405U uses FCBGA1528 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Xeon E5205 | Pentium Gold 6405U |
|---|---|---|
| Socket | LGA771 | FCBGA1528 |
| PCIe Generation | PCIe 2.0 | PCIe 3.0+50% |
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