Atom E660 vs Sempron 2500+
Atom E660
Sempron 2500+
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 Atom E660 is positioned at rank 743 and the Sempron 2500+ is on rank 1007, so the Atom E660 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Atom E660
Performance Per Dollar Sempron 2500+
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Atom E660 | Sempron 2500+ |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Tunnel Creek (2010) / 45 nm) | 🛑 Legacy (Palermo (2001−2005) / 130 nm) |
💎 Value Proposition
| Insight | Atom E660 | Sempron 2500+ |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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 Atom E660 and Sempron 2500+
Atom E660
The Atom E660 is manufactured by Intel. It was released in 14 September 2010 (15 years ago). It is based on the Tunnel Creek (2010) architecture. It features 1 cores and 2 threads. Max frequency: 1.3 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: BGA676. Thermal design power (TDP): 3 Watt. Memory support: DDR2. Passmark benchmark score: 275 points. Launch price was $54.
Sempron 2500+
The Sempron 2500+ is manufactured by AMD. It was released in Janeiro 2001 (24 years ago). It is based on the Palermo (2001−2005) architecture. It features 1 cores and 1 threads. Max frequency: 1.75 GHz. L3 cache: 0 kB. L2 cache: 256 kB. Built on 130 nm process technology. Socket: 754. Thermal design power (TDP): 62 Watt. Passmark benchmark score: 277 points. Launch price was $80.
Processing Power
The Atom E660 packs 1 cores / 2 threads, matching the Sempron 2500+'s 1 cores. Boost clocks reach 1.3 GHz on the Atom E660 versus 1.75 GHz on the Sempron 2500+ — a 29.5% clock advantage for the Sempron 2500+. The Atom E660 uses the Tunnel Creek (2010) architecture (45 nm), while the Sempron 2500+ uses Palermo (2001−2005) (130 nm). In PassMark, the Atom E660 scores 275 against the Sempron 2500+'s 277 — a 0.7% lead for the Sempron 2500+. Both processors carry 0 kB of L3 cache.
| Feature | Atom E660 | Sempron 2500+ |
|---|---|---|
| Cores / Threads | 1 / 2 | 1 / 1 |
| Boost Clock | 1.3 GHz | 1.75 GHz+35% |
| L3 Cache | 0 kB | 0 kB |
| L2 Cache | 512 kB (per core)+100% | 256 kB |
| Process | 45 nm-65% | 130 nm |
| Architecture | Tunnel Creek (2010) | Palermo (2001−2005) |
| PassMark | 275 | 277 |
Memory & Platform
The Atom E660 uses the BGA676 socket (PCIe 2.0), while the Sempron 2500+ uses 754 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Atom E660 | Sempron 2500+ |
|---|---|---|
| Socket | BGA676 | 754 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | DDR2-800 | — |
| Max RAM Capacity | 2 GB | — |
| RAM Channels | 1 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 4 | — |
Advanced Features
The Atom E660 includes integrated graphics (Intel GMA 600), while the Sempron 2500+ requires a dedicated GPU.
| Feature | Atom E660 | Sempron 2500+ |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | Intel GMA 600 | — |
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