Mobile Pentium 4 2.66 vs Atom D425
Mobile Pentium 4 2.66
Atom D425
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 Mobile Pentium 4 2.66 is positioned at rank 771 and the Atom D425 is on rank 1088, so the Mobile Pentium 4 2.66 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Mobile Pentium 4 2.66
Performance Per Dollar Atom D425
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Mobile Pentium 4 2.66 | Atom D425 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Northwood (2002−2004) / 130 nm) | 🛑 Legacy (Pineview (2009−2011) / 45 nm) |
💎 Value Proposition
| Insight | Mobile Pentium 4 2.66 | Atom D425 |
|---|---|---|
| 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 Mobile Pentium 4 2.66 and Atom D425
Mobile Pentium 4 2.66
The Mobile Pentium 4 2.66 is manufactured by Intel. It was released in Junho 2003 (22 years ago). It is based on the Northwood (2002−2004) architecture. It features 1 cores and 2 threads. Max frequency: 2.67 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 130 nm process technology. Socket: PGA478. Thermal design power (TDP): 66 Watt. Memory support: DDR1, DDR2. Passmark benchmark score: 395 points. Launch price was $69.
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.
Processing Power
Both the Mobile Pentium 4 2.66 and Atom D425 share an identical 1-core/2-thread configuration. Boost clocks reach 2.67 GHz on the Mobile Pentium 4 2.66 versus 1.83 GHz on the Atom D425 — a 37.3% clock advantage for the Mobile Pentium 4 2.66. The Mobile Pentium 4 2.66 uses the Northwood (2002−2004) architecture (130 nm), while the Atom D425 uses Pineview (2009−2011) (45 nm). In PassMark, the Mobile Pentium 4 2.66 scores 395 against the Atom D425's 385 — a 2.6% lead for the Mobile Pentium 4 2.66. Both processors carry 0 kB of L3 cache.
| Feature | Mobile Pentium 4 2.66 | Atom D425 |
|---|---|---|
| Cores / Threads | 1 / 2 | 1 / 2 |
| Boost Clock | 2.67 GHz+46% | 1.83 GHz |
| Base Clock | — | 1.8 GHz |
| L3 Cache | 0 kB | 0 kB |
| L2 Cache | 512 kB | 512 kB (per core) |
| Process | 130 nm | 45 nm-65% |
| Architecture | Northwood (2002−2004) | Pineview (2009−2011) |
| PassMark | 395+3% | 385 |
| Geekbench 6 Single | 800 | — |
| Geekbench 6 Multi | 800 | — |
Memory & Platform
The Mobile Pentium 4 2.66 uses the PGA478 socket (PCIe 1.1), while the Atom D425 uses FCBGA559 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR2 on the Mobile Pentium 4 2.66 versus DDR3-800 on the Atom D425 — the Atom D425 supports 40% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 4 GB of RAM. Both feature 1-channel memory with ECC support. Both provide 0 PCIe lanes. Chipset compatibility: 852PM,855PM (Mobile Pentium 4 2.66) and Intel NM10 (Atom D425).
| Feature | Mobile Pentium 4 2.66 | Atom D425 |
|---|---|---|
| Socket | PGA478 | FCBGA559 |
| PCIe Generation | PCIe 1.1 | PCIe 2.0+82% |
| Max RAM Speed | DDR2 | DDR3-800+50% |
| Max RAM Capacity | 4 GB | 4 GB |
| RAM Channels | 1 | 1 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 0 | 0 |
Advanced Features
Virtualization: None (Mobile Pentium 4 2.66) / not specified (Atom D425). The Atom D425 includes integrated graphics (Intel GMA 3150), while the Mobile Pentium 4 2.66 requires a dedicated GPU. Primary use case: Mobile Pentium 4 2.66 targets Legacy Laptop.
| Feature | Mobile Pentium 4 2.66 | Atom D425 |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | None | Intel GMA 3150 |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | None | — |
| Target Use | Legacy Laptop | — |
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