CPU
GPU
Core 2 Duo T5750
Xeon E5405
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 Core 2 Duo T5750 is positioned at rank 28 and the Xeon E5405 is on rank 906, so the Core 2 Duo T5750 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core 2 Duo T5750
Performance Per Dollar Xeon E5405
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core 2 Duo T5750 | Xeon E5405 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($8) | ⚠️ Higher cost ($15) |
| Longevity | 🛑 Legacy (Merom (2006−2008) / 65 nm) | 🛑 Legacy (Harpertown (2007−2008) / 45 nm) |
💎 Value Proposition
| Insight | Core 2 Duo T5750 | Xeon E5405 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+86%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($8) | ⚠️ Higher cost ($15) |
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 Core 2 Duo T5750 and Xeon E5405
Core 2 Duo T5750
The Core 2 Duo T5750 is manufactured by Intel. It was released in 2008-01-01. It is based on the Merom (2006−2008) architecture. It features 2 cores and 2 threads. Base frequency is 2 GHz, with boost up to 2 GHz. L3 cache: 2 MB L2 Cache. L2 cache: 2 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 35 Watt. Passmark benchmark score: 1,738 points. Launch price was $249.
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.
Processing Power
The Core 2 Duo T5750 packs 2 cores / 2 threads, while the Xeon E5405 offers 4 cores / 4 threads — the Xeon E5405 has 2 more cores. Boost clocks reach 2 GHz on the Core 2 Duo T5750 versus 2 GHz on the Xeon E5405 — identical boost frequencies (base: 2 GHz vs 2 GHz). The Core 2 Duo T5750 uses the Merom (2006−2008) architecture (65 nm), while the Xeon E5405 uses Harpertown (2007−2008) (45 nm). In PassMark, the Core 2 Duo T5750 scores 1,738 against the Xeon E5405's 1,753 — a 0.9% lead for the Xeon E5405. L3 cache: 2 MB L2 Cache on the Core 2 Duo T5750 vs 12 MB L2 Cache on the Xeon E5405.
| Feature | Core 2 Duo T5750 | Xeon E5405 |
|---|---|---|
| Cores / Threads | 2 / 2 | 4 / 4+100% |
| Boost Clock | 2 GHz | 2 GHz |
| Base Clock | 2 GHz | 2 GHz |
| L3 Cache | 2 MB L2 Cache | 12 MB L2 Cache+500% |
| L2 Cache | 2 MB | 6 MB (total)+200% |
| Process | 65 nm | 45 nm-31% |
| Architecture | Merom (2006−2008) | Harpertown (2007−2008) |
| PassMark | 1,738 | 1,753 |
| Geekbench 6 Single | 360 | — |
| Geekbench 6 Multi | 680 | — |
Memory & Platform
The Core 2 Duo T5750 uses the PGA478 socket (PCIe 1.1), while the Xeon E5405 uses LGA771 (PCIe 2.0) — making them incompatible on the same motherboard. Both support up to DDR2-667 memory speed. The Xeon E5405 supports up to 32 GB of RAM compared to 4 GB — 155.6% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 0 PCIe lanes.
| Feature | Core 2 Duo T5750 | Xeon E5405 |
|---|---|---|
| Socket | PGA478 | LGA771 |
| PCIe Generation | PCIe 1.1 | PCIe 2.0+82% |
| Max RAM Speed | DDR2-667 | DDR2-667 |
| Max RAM Capacity | 4 GB | 32 GB+700% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 0 | 0 |
Advanced Features
Neither processor supports overclocking. Virtualization support: None (Core 2 Duo T5750) vs VT-x (Xeon E5405). Primary use case: Core 2 Duo T5750 targets Legacy Laptop, Xeon E5405 targets Server.
| Feature | Core 2 Duo T5750 | Xeon E5405 |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | None | VT-x |
| Target Use | Legacy Laptop | Server |
Value Analysis
At current prices ($8 vs $15), the Core 2 Duo T5750 is $7 cheaper. In terms of value (PassMark points per dollar), the Core 2 Duo T5750 delivers 217.3 pts/$ vs 116.9 pts/$ for the Xeon E5405 — making the Core 2 Duo T5750 the 60.1% better value option.
| Feature | Core 2 Duo T5750 | Xeon E5405 |
|---|---|---|
| MSRP | — | $209 |
| Avg Price (30d) | $8-47% | $15 |
| Performance per Dollar | 217.3+86% | 116.9 |
| Release Date | 2008 | 2007 |
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