CPU
GPU
Xeon E5405
Core Duo T2600
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 E5405 is positioned at rank 906 and the Core Duo T2600 is on rank 350, so the Core Duo T2600 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon E5405
Performance Per Dollar Core Duo T2600
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon E5405 | Core Duo T2600 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($15) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Harpertown (2007−2008) / 45 nm) | 🛑 Legacy (Yonah (2005−2006) / 65 nm) |
💎 Value Proposition
| Insight | Xeon E5405 | Core Duo T2600 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($15) | ✅ 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 Xeon E5405 and Core Duo T2600
Xeon E5405
The Xeon E5405 is manufactured by Intel. It was released in 11 November 2007 (18 years ago). It is based on the Harpertown (2007−2008) architecture. It features 4 cores and 4 threads. Base frequency is 2 GHz, with boost up to 2 GHz. L3 cache: 12 MB L2 Cache. L2 cache: 6 MB (total). Built on 45 nm process technology. Socket: LGA771. Thermal design power (TDP): 80 Watt. Memory support: DDR2, DDR3 Depends on motherboard. Passmark benchmark score: 1,753 points. Launch price was $209.
Core Duo T2600
The Core Duo T2600 is manufactured by Intel. It was released in 5 January 2006 (19 years ago). It is based on the Yonah (2005−2006) architecture. It features 2 cores and 2 threads. Base frequency is 2.16 GHz, with boost up to 2.16 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 31 Watt. Memory support: DDR1. Passmark benchmark score: 1,765 points. Launch price was $440.
Processing Power
The Xeon E5405 packs 4 cores / 4 threads, while the Core Duo T2600 offers 2 cores / 2 threads — the Xeon E5405 has 2 more cores. Boost clocks reach 2 GHz on the Xeon E5405 versus 2.16 GHz on the Core Duo T2600 — a 7.7% clock advantage for the Core Duo T2600 (base: 2 GHz vs 2.16 GHz). The Xeon E5405 uses the Harpertown (2007−2008) architecture (45 nm), while the Core Duo T2600 uses Yonah (2005−2006) (65 nm). In PassMark, the Xeon E5405 scores 1,753 against the Core Duo T2600's 1,765 — a 0.7% lead for the Core Duo T2600. L3 cache: 12 MB L2 Cache on the Xeon E5405 vs 0 kB on the Core Duo T2600.
| Feature | Xeon E5405 | Core Duo T2600 |
|---|---|---|
| Cores / Threads | 4 / 4+100% | 2 / 2 |
| Boost Clock | 2 GHz | 2.16 GHz+8% |
| Base Clock | 2 GHz | 2.16 GHz+8% |
| L3 Cache | 12 MB L2 Cache | 0 kB |
| L2 Cache | 6 MB (total)+200% | 2 MB |
| Process | 45 nm-31% | 65 nm |
| Architecture | Harpertown (2007−2008) | Yonah (2005−2006) |
| PassMark | 1,753 | 1,765 |
Memory & Platform
The Xeon E5405 uses the LGA771 socket (PCIe 2.0), while the Core Duo T2600 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard.
| Feature | Xeon E5405 | Core Duo T2600 |
|---|---|---|
| Socket | LGA771 | PGA478 |
| PCIe Generation | PCIe 2.0+82% | PCIe 1.1 |
| Max RAM Speed | DDR2-667 | — |
| Max RAM Capacity | 32 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ✅ | — |
| PCIe Lanes | 0 | — |
Advanced Features
Virtualization: VT-x (Xeon E5405) / not specified (Core Duo T2600). Primary use case: Xeon E5405 targets Server.
| Feature | Xeon E5405 | Core Duo T2600 |
|---|---|---|
| Integrated GPU | No | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | VT-x | — |
| Target Use | Server | — |
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