CPU
GPU
Xeon E5405
Xeon L5408
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 Xeon L5408 is on rank 901, so the Xeon L5408 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 Xeon L5408
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon E5405 | Xeon L5408 |
|---|---|---|
| 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 (Harpertown (2007−2008) / 45 nm) |
💎 Value Proposition
| Insight | Xeon E5405 | Xeon L5408 |
|---|---|---|
| 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 Xeon L5408
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.
Xeon L5408
The Xeon L5408 is manufactured by Intel. It was released in 2015-01-01. It is based on the Harpertown (2007−2008) architecture. It features 4 cores and 4 threads. Base frequency is 2.133 GHz, with boost up to 0.13 GHz. L2 cache: 6 MB (total). Built on 45 nm process technology. Socket: LGA771. Thermal design power (TDP): 40 Watt. Memory support: DDR2, DDR3 Depends on motherboard. Passmark benchmark score: 1,769 points. Launch price was $800.
Processing Power
Both the Xeon E5405 and Xeon L5408 share an identical 4-core/4-thread configuration. Boost clocks reach 2 GHz on the Xeon E5405 versus 0.13 GHz on the Xeon L5408 — a 175.6% clock advantage for the Xeon E5405 (base: 2 GHz vs 2.133 GHz). Both are built on the Harpertown (2007−2008) architecture using a 45 nm process. In PassMark, the Xeon E5405 scores 1,753 against the Xeon L5408's 1,769 — a 0.9% lead for the Xeon L5408.
| Feature | Xeon E5405 | Xeon L5408 |
|---|---|---|
| Cores / Threads | 4 / 4 | 4 / 4 |
| Boost Clock | 2 GHz+1438% | 0.13 GHz |
| Base Clock | 2 GHz | 2.133 GHz+7% |
| L3 Cache | 12 MB L2 Cache | — |
| L2 Cache | 6 MB (total) | 6 MB (total) |
| Process | 45 nm | 45 nm |
| Architecture | Harpertown (2007−2008) | Harpertown (2007−2008) |
| PassMark | 1,753 | 1,769 |
Memory & Platform
Both processors use the LGA771 socket with PCIe 2.0.
| Feature | Xeon E5405 | Xeon L5408 |
|---|---|---|
| Socket | LGA771 | LGA771 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| 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 (Xeon L5408). Primary use case: Xeon E5405 targets Server.
| Feature | Xeon E5405 | Xeon L5408 |
|---|---|---|
| Integrated GPU | No | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | VT-x | — |
| Target Use | Server | — |
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The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
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