Sempron 3000+ vs Atom Z550
Sempron 3000+
Atom Z550
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 Sempron 3000+ is positioned at rank 971 and the Atom Z550 is on rank 592, 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 Sempron 3000+
Performance Per Dollar Atom Z550
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Sempron 3000+ | Atom Z550 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Palermo (2001−2005) / 130 nm) | 🛑 Legacy (Silverthorne (2008−2010) / 45 nm) |
💎 Value Proposition
| Insight | Sempron 3000+ | Atom Z550 |
|---|---|---|
| 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 Sempron 3000+ and Atom Z550
Sempron 3000+
The Sempron 3000+ is manufactured by AMD. It was released in 1 October 2005 (20 years ago). It is based on the Palermo (2001−2005) architecture. It features 1 cores and 1 threads. Max frequency: 1.8 GHz. L3 cache: 0 kB. L2 cache: 128 kB. Built on 130 nm process technology. Socket: 939. Thermal design power (TDP): 62 Watt. Memory support: DDR1. Passmark benchmark score: 350 points. Launch price was $50.
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.
Processing Power
The Sempron 3000+ packs 1 cores / 1 threads, matching the Atom Z550's 1 cores. Boost clocks reach 1.8 GHz on the Sempron 3000+ versus 2 GHz on the Atom Z550 — a 10.5% clock advantage for the Atom Z550. The Sempron 3000+ uses the Palermo (2001−2005) architecture (130 nm), while the Atom Z550 uses Silverthorne (2008−2010) (45 nm). In PassMark, the Sempron 3000+ scores 350 against the Atom Z550's 375 — a 6.9% lead for the Atom Z550. Both processors carry 0 kB of L3 cache.
| Feature | Sempron 3000+ | Atom Z550 |
|---|---|---|
| Cores / Threads | 1 / 1 | 1 / 2 |
| Boost Clock | 1.8 GHz | 2 GHz+11% |
| Base Clock | — | 2 GHz |
| L3 Cache | 0 kB | 0 kB |
| L2 Cache | 128 kB | 512 kB (per core)+300% |
| Process | 130 nm | 45 nm-65% |
| Architecture | Palermo (2001−2005) | Silverthorne (2008−2010) |
| PassMark | 350 | 375+7% |
Memory & Platform
The Sempron 3000+ uses the 939 socket (PCIe 2.0), while the Atom Z550 uses PBGA441 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Sempron 3000+ | Atom Z550 |
|---|---|---|
| Socket | 939 | PBGA441 |
| 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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