Athlon XP 2500+ vs Mobile Sempron SI-40
Athlon XP 2500+
Mobile Sempron SI-40
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 Athlon XP 2500+ is positioned at rank 1105 and the Mobile Sempron SI-40 is on rank 1182, so the Athlon XP 2500+ offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Athlon XP 2500+
Performance Per Dollar Mobile Sempron SI-40
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Athlon XP 2500+ | Mobile Sempron SI-40 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($15) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Barton (2001−2004) / 130 nm) | 🛑 Legacy (Sable (2008−2009) / 65 nm) |
💎 Value Proposition
| Insight | Athlon XP 2500+ | Mobile Sempron SI-40 |
|---|---|---|
| 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 Athlon XP 2500+ and Mobile Sempron SI-40
Athlon XP 2500+
The Athlon XP 2500+ is manufactured by AMD. It was released in 2009-01-01. It is based on the Barton (2001−2004) architecture. It features 1 cores and 1 threads. Max frequency: 1.83 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 130 nm process technology. Socket: A. Thermal design power (TDP): 68 Watt. Passmark benchmark score: 320 points. Launch price was $149.
Mobile Sempron SI-40
The Mobile Sempron SI-40 is manufactured by AMD. It was released in 4 July 2008 (17 years ago). It is based on the Sable (2008−2009) architecture. It features 1 cores and 1 threads. Max frequency: 2 GHz. L2 cache: 512 kB. Built on 65 nm process technology. Socket: S1g2. Thermal design power (TDP): 512 kB. Passmark benchmark score: 322 points. Launch price was $69.
Processing Power
Both the Athlon XP 2500+ and Mobile Sempron SI-40 share an identical 1-core/1-thread configuration. Boost clocks reach 1.83 GHz on the Athlon XP 2500+ versus 2 GHz on the Mobile Sempron SI-40 — a 8.9% clock advantage for the Mobile Sempron SI-40. The Athlon XP 2500+ uses the Barton (2001−2004) architecture (130 nm), while the Mobile Sempron SI-40 uses Sable (2008−2009) (65 nm). In PassMark, the Athlon XP 2500+ scores 320 against the Mobile Sempron SI-40's 322 — a 0.6% lead for the Mobile Sempron SI-40.
| Feature | Athlon XP 2500+ | Mobile Sempron SI-40 |
|---|---|---|
| Cores / Threads | 1 / 1 | 1 / 1 |
| Boost Clock | 1.83 GHz | 2 GHz+9% |
| L3 Cache | 0 kB | — |
| L2 Cache | 512 kB | 512 kB |
| Process | 130 nm | 65 nm-50% |
| Architecture | Barton (2001−2004) | Sable (2008−2009) |
| PassMark | 320 | 322 |
Memory & Platform
The Athlon XP 2500+ uses the A socket (PCIe 1.1), while the Mobile Sempron SI-40 uses S1g2 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Athlon XP 2500+ | Mobile Sempron SI-40 |
|---|---|---|
| Socket | A | S1g2 |
| PCIe Generation | PCIe 1.1 | PCIe 2.0+82% |
| Max RAM Speed | DDR-400 | — |
| Max RAM Capacity | 2 GB | — |
| RAM Channels | 1 | — |
| ECC Support | ❌ | — |
Advanced Features
Virtualization: false (Athlon XP 2500+) / not specified (Mobile Sempron SI-40).
| Feature | Athlon XP 2500+ | Mobile Sempron SI-40 |
|---|---|---|
| Integrated GPU | No | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | false | — |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
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