
Atom Z550 vs Athlon MP 2800+

Atom Z550

Athlon MP 2800+
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 Athlon MP 2800+ is on rank 1026, 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 Athlon MP 2800+
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Atom Z550 | Athlon MP 2800+ |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($10) |
| Longevity | 🛑 Legacy (Silverthorne (2008−2010) / 45 nm) | 🛑 Legacy (K7 (2000−2004) / 130 nm) |
💎 Value Proposition
| Insight | Atom Z550 | Athlon MP 2800+ |
|---|---|---|
| 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 Atom Z550 and Athlon MP 2800+

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.

Athlon MP 2800+
The Athlon MP 2800+ is manufactured by AMD. It was released in 6 May 2003 (22 years ago). It is based on the K7 (2000−2004) architecture. It features 1 cores and 1 threads. Max frequency: 2.13 GHz. L2 cache: 512 kB. Built on 130 nm process technology. Thermal design power (TDP): 60 Watt. Passmark benchmark score: 380 points. Launch price was $275.
Processing Power
The Atom Z550 packs 1 cores / 2 threads, matching the Athlon MP 2800+'s 1 cores. Boost clocks reach 2 GHz on the Atom Z550 versus 2.13 GHz on the Athlon MP 2800+ — a 6.3% clock advantage for the Athlon MP 2800+. The Atom Z550 uses the Silverthorne (2008−2010) architecture (45 nm), while the Athlon MP 2800+ uses K7 (2000−2004) (130 nm). In PassMark, the Atom Z550 scores 375 against the Athlon MP 2800+'s 380 — a 1.3% lead for the Athlon MP 2800+.
| Feature | Atom Z550 | Athlon MP 2800+ |
|---|---|---|
| Cores / Threads | 1 / 2 | 1 / 1 |
| Boost Clock | 2 GHz | 2.13 GHz+6% |
| Base Clock | 2 GHz | — |
| L3 Cache | 0 kB | — |
| L2 Cache | 512 kB (per core) | 512 kB |
| Process | 45 nm-65% | 130 nm |
| Architecture | Silverthorne (2008−2010) | K7 (2000−2004) |
| PassMark | 375 | 380+1% |
Memory & Platform
Maximum memory speed reaches DDR2-533 on the Atom Z550 versus DDR-266 on the Athlon MP 2800+ — the Atom Z550 supports -203% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Athlon MP 2800+ supports up to 4 GB of RAM compared to 2 GB — 66.7% more capacity for professional workloads. Both feature 1-channel memory with ECC support. Both provide 0 PCIe lanes. Chipset compatibility: Intel US15W (Atom Z550) and AMD Socket A (Athlon MP 2800+).
| Feature | Atom Z550 | Athlon MP 2800+ |
|---|---|---|
| Socket | PBGA441 | — |
| PCIe Generation | PCIe 2.0+82% | PCIe 1.1 |
| Max RAM Speed | DDR2-533 | DDR-266 |
| Max RAM Capacity | 2 GB | 4 GB+100% |
| RAM Channels | 1 | 1 |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 0 | 0 |
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