Xeon 2.66 vs Mobile Sempron M100
Xeon 2.66
Mobile Sempron M100
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 2.66 is positioned at rank 1028 and the Mobile Sempron M100 is on rank 1106, so the Xeon 2.66 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon 2.66
Performance Per Dollar Mobile Sempron M100
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon 2.66 | Mobile Sempron M100 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($10) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Prestonia (2002) / 130 nm) | 🛑 Legacy (Caspian (2009) / 40 nm) |
💎 Value Proposition
| Insight | Xeon 2.66 | Mobile Sempron M100 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($10) | ✅ 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 2.66 and Mobile Sempron M100
Xeon 2.66
The Xeon 2.66 is manufactured by Intel. It was released in 2015-01-01. It is based on the Prestonia (2002) architecture. It features 1 cores and 1 threads. Max frequency: 2.66 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 130 nm process technology. Socket: PGA604. Thermal design power (TDP): 89 Watt. Passmark benchmark score: 445 points. Launch price was $800.
Mobile Sempron M100
The Mobile Sempron M100 is manufactured by AMD. It was released in 10 September 2009 (16 years ago). It is based on the Caspian (2009) architecture. It features 1 cores and 1 threads. Max frequency: 2 GHz. L2 cache: 512 kB. Built on 40 nm process technology. Socket: S. Thermal design power (TDP): 512 kB. Passmark benchmark score: 448 points. Launch price was $69.
Processing Power
Both the Xeon 2.66 and Mobile Sempron M100 share an identical 1-core/1-thread configuration. Boost clocks reach 2.66 GHz on the Xeon 2.66 versus 2 GHz on the Mobile Sempron M100 — a 28.3% clock advantage for the Xeon 2.66. The Xeon 2.66 uses the Prestonia (2002) architecture (130 nm), while the Mobile Sempron M100 uses Caspian (2009) (40 nm). In PassMark, the Xeon 2.66 scores 445 against the Mobile Sempron M100's 448 — a 0.7% lead for the Mobile Sempron M100.
| Feature | Xeon 2.66 | Mobile Sempron M100 |
|---|---|---|
| Cores / Threads | 1 / 1 | 1 / 1 |
| Boost Clock | 2.66 GHz+33% | 2 GHz |
| L3 Cache | 0 kB | — |
| L2 Cache | 512 kB | 512 kB |
| Process | 130 nm | 40 nm-69% |
| Architecture | Prestonia (2002) | Caspian (2009) |
| PassMark | 445 | 448 |
Memory & Platform
The Xeon 2.66 uses the PGA604 socket (PCIe 2.0), while the Mobile Sempron M100 uses S (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Xeon 2.66 | Mobile Sempron M100 |
|---|---|---|
| Socket | PGA604 | S |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
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