Atom D425 vs Atom Z550
Atom D425
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 Atom D425 is positioned at rank 1088 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 Atom D425
Performance Per Dollar Atom Z550
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Atom D425 | Atom Z550 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Pineview (2009−2011) / 45 nm) | 🛑 Legacy (Silverthorne (2008−2010) / 45 nm) |
💎 Value Proposition
| Insight | Atom D425 | 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 Atom D425 and Atom Z550
Atom D425
The Atom D425 is manufactured by Intel. It was released in 21 June 2010 (15 years ago). It is based on the Pineview (2009−2011) architecture. It features 1 cores and 2 threads. Base frequency is 1.8 GHz, with boost up to 1.83 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: FCBGA559. Thermal design power (TDP): 10 Watt. Memory support: DDR2, DDR3. Passmark benchmark score: 385 points. Launch price was $993.
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
Both the Atom D425 and Atom Z550 share an identical 1-core/2-thread configuration. Boost clocks reach 1.83 GHz on the Atom D425 versus 2 GHz on the Atom Z550 — a 8.9% clock advantage for the Atom Z550 (base: 1.8 GHz vs 2 GHz). The Atom D425 uses the Pineview (2009−2011) architecture (45 nm), while the Atom Z550 uses Silverthorne (2008−2010) (45 nm). In PassMark, the Atom D425 scores 385 against the Atom Z550's 375 — a 2.6% lead for the Atom D425. Both processors carry 0 kB of L3 cache.
| Feature | Atom D425 | Atom Z550 |
|---|---|---|
| Cores / Threads | 1 / 2 | 1 / 2 |
| Boost Clock | 1.83 GHz | 2 GHz+9% |
| Base Clock | 1.8 GHz | 2 GHz+11% |
| L3 Cache | 0 kB | 0 kB |
| L2 Cache | 512 kB (per core) | 512 kB (per core) |
| Process | 45 nm | 45 nm |
| Architecture | Pineview (2009−2011) | Silverthorne (2008−2010) |
| PassMark | 385+3% | 375 |
Memory & Platform
The Atom D425 uses the FCBGA559 socket (PCIe 2.0), while the Atom Z550 uses PBGA441 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-800 on the Atom D425 versus DDR2-533 on the Atom Z550 — the Atom D425 supports 40% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Atom D425 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 NM10 (Atom D425) and Intel US15W (Atom Z550).
| Feature | Atom D425 | Atom Z550 |
|---|---|---|
| Socket | FCBGA559 | PBGA441 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | DDR3-800+50% | DDR2-533 |
| Max RAM Capacity | 4 GB+100% | 2 GB |
| RAM Channels | 1 | 1 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 0 | 0 |
Advanced Features
The Atom D425 includes integrated graphics (Intel GMA 3150), while the Atom Z550 requires a dedicated GPU.
| Feature | Atom D425 | Atom Z550 |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Intel GMA 3150 | — |
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