Mobile Sempron M100 vs Xeon 2.66
Mobile Sempron M100
Xeon 2.66
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 Mobile Sempron M100 is positioned at rank 1106 and the Xeon 2.66 is on rank 1028, 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 Mobile Sempron M100
Performance Per Dollar Xeon 2.66
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Mobile Sempron M100 | Xeon 2.66 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($10) |
| Longevity | 🛑 Legacy (Caspian (2009) / 40 nm) | 🛑 Legacy (Prestonia (2002) / 130 nm) |
💎 Value Proposition
| Insight | Mobile Sempron M100 | Xeon 2.66 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($10) |
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 Mobile Sempron M100 and Xeon 2.66
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.
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.
Processing Power
Both the Mobile Sempron M100 and Xeon 2.66 share an identical 1-core/1-thread configuration. Boost clocks reach 2 GHz on the Mobile Sempron M100 versus 2.66 GHz on the Xeon 2.66 — a 28.3% clock advantage for the Xeon 2.66. The Mobile Sempron M100 uses the Caspian (2009) architecture (40 nm), while the Xeon 2.66 uses Prestonia (2002) (130 nm). In PassMark, the Mobile Sempron M100 scores 448 against the Xeon 2.66's 445 — a 0.7% lead for the Mobile Sempron M100.
| Feature | Mobile Sempron M100 | Xeon 2.66 |
|---|---|---|
| Cores / Threads | 1 / 1 | 1 / 1 |
| Boost Clock | 2 GHz | 2.66 GHz+33% |
| L3 Cache | — | 0 kB |
| L2 Cache | 512 kB | 512 kB |
| Process | 40 nm-69% | 130 nm |
| Architecture | Caspian (2009) | Prestonia (2002) |
| PassMark | 448 | 445 |
Memory & Platform
The Mobile Sempron M100 uses the S socket (PCIe 2.0), while the Xeon 2.66 uses PGA604 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Mobile Sempron M100 | Xeon 2.66 |
|---|---|---|
| Socket | S | PGA604 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
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