Celeron 540 vs Mobile Pentium 4 2.66
Celeron 540
Mobile Pentium 4 2.66
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 Celeron 540 is positioned at rank 1212 and the Mobile Pentium 4 2.66 is on rank 771, 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 Celeron 540
Performance Per Dollar Mobile Pentium 4 2.66
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron 540 | Mobile Pentium 4 2.66 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($5) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Legacy / 65 nm) | 🛑 Legacy (Northwood (2002−2004) / 130 nm) |
💎 Value Proposition
| Insight | Celeron 540 | Mobile Pentium 4 2.66 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($5) | ✅ More affordable ($0) |
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 Celeron 540 and Mobile Pentium 4 2.66
Celeron 540
The Celeron 540 is manufactured by Intel. It was released in 2007-01-01. Base frequency: 1.86 GHz. L3 cache: 1 MB L2 Cache. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 30 Watt. Passmark benchmark score: 408 points. Launch price was $69.
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.
Processing Power
The Mobile Pentium 4 2.66 is built on the Northwood (2002−2004) architecture. In PassMark, the Celeron 540 scores 408 against the Mobile Pentium 4 2.66's 395 — a 3.2% lead for the Celeron 540. L3 cache: 1 MB L2 Cache on the Celeron 540 vs 0 kB on the Mobile Pentium 4 2.66.
| Feature | Celeron 540 | Mobile Pentium 4 2.66 |
|---|---|---|
| Cores / Threads | — | 1 / 2 |
| Boost Clock | — | 2.67 GHz |
| Base Clock | 1.86 GHz | — |
| L3 Cache | 1 MB L2 Cache | 0 kB |
| L2 Cache | — | 512 kB |
| Process | 65 nm-50% | 130 nm |
| Architecture | — | Northwood (2002−2004) |
| PassMark | 408+3% | 395 |
| Geekbench 6 Single | — | 800 |
| Geekbench 6 Multi | — | 800 |
Memory & Platform
Both processors use the PGA478 socket with PCIe 1.1. Both support up to DDR2-667 memory speed. Both support up to 4 GB of RAM. Memory channels: 2 (Celeron 540) vs 1 (Mobile Pentium 4 2.66). Both provide 0 PCIe lanes. Chipset compatibility: Santa Rosa (Celeron 540) and 852PM,855PM (Mobile Pentium 4 2.66).
| Feature | Celeron 540 | Mobile Pentium 4 2.66 |
|---|---|---|
| Socket | PGA478 | PGA478 |
| PCIe Generation | PCIe 1.1 | PCIe 1.1 |
| Max RAM Speed | DDR2-667 | DDR2 |
| Max RAM Capacity | 4 GB | 4 GB |
| RAM Channels | 2+100% | 1 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 0 | 0 |
Advanced Features
Neither processor supports overclocking. Virtualization support: No (Celeron 540) vs None (Mobile Pentium 4 2.66). Primary use case: Celeron 540 targets Budget, Mobile Pentium 4 2.66 targets Legacy Laptop. Direct competitor: Celeron 540 rivals Pentium T2310.
| Feature | Celeron 540 | Mobile Pentium 4 2.66 |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | — | None |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | No | None |
| Target Use | Budget | Legacy Laptop |
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