Atom Z550 vs Sempron LE-1100
Atom Z550
Sempron LE-1100
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 Z550 is positioned at rank 592 and the Sempron LE-1100 is on rank 953, so the Atom Z550 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Atom Z550
Performance Per Dollar Sempron LE-1100
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Atom Z550 | Sempron LE-1100 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Silverthorne (2008−2010) / 45 nm) | 🛑 Legacy (Sparta (2007) / 65 nm) |
💎 Value Proposition
| Insight | Atom Z550 | Sempron LE-1100 |
|---|---|---|
| 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 Z550 and Sempron LE-1100
Atom Z550
The Atom Z550 is manufactured by Intel. It was released in 8 April 2009 (16 years ago). It is based on the Silverthorne (2008−2010) architecture. It features 1 cores and 2 threads. Base frequency is 2 GHz, with boost up to 2 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: PBGA441. Thermal design power (TDP): 2.4 Watt. Memory support: unknown. Passmark benchmark score: 375 points. Launch price was $69.
Sempron LE-1100
The Sempron LE-1100 is manufactured by AMD. It was released in 2007-01-01. It is based on the Sparta (2007) architecture. It features 1 cores and 1 threads. Max frequency: 1.9 GHz. L3 cache: 0 kB. L2 cache: 256 kB. Built on 65 nm process technology. Socket: AM2. Thermal design power (TDP): 45 Watt. Passmark benchmark score: 376 points. Launch price was $69.
Processing Power
The Atom Z550 packs 1 cores / 2 threads, matching the Sempron LE-1100's 1 cores. Boost clocks reach 2 GHz on the Atom Z550 versus 1.9 GHz on the Sempron LE-1100 — a 5.1% clock advantage for the Atom Z550. The Atom Z550 uses the Silverthorne (2008−2010) architecture (45 nm), while the Sempron LE-1100 uses Sparta (2007) (65 nm). In PassMark, the Atom Z550 scores 375 against the Sempron LE-1100's 376 — a 0.3% lead for the Sempron LE-1100. Both processors carry 0 kB of L3 cache.
| Feature | Atom Z550 | Sempron LE-1100 |
|---|---|---|
| Cores / Threads | 1 / 2 | 1 / 1 |
| Boost Clock | 2 GHz+5% | 1.9 GHz |
| Base Clock | 2 GHz | — |
| L3 Cache | 0 kB | 0 kB |
| L2 Cache | 512 kB (per core)+100% | 256 kB |
| Process | 45 nm-31% | 65 nm |
| Architecture | Silverthorne (2008−2010) | Sparta (2007) |
| PassMark | 375 | 376 |
Memory & Platform
The Atom Z550 uses the PBGA441 socket (PCIe 2.0), while the Sempron LE-1100 uses AM2 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Atom Z550 | Sempron LE-1100 |
|---|---|---|
| Socket | PBGA441 | AM2 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | DDR2-533 | — |
| Max RAM Capacity | 2 GB | — |
| RAM Channels | 1 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 0 | — |
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