
Celeron 540 vs Athlon XP 3100+

Celeron 540

Athlon XP 3100+
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 Athlon XP 3100+ is on rank 1096, so the Athlon XP 3100+ 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 Athlon XP 3100+
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron 540 | Athlon XP 3100+ |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($5) | ⚠️ Higher cost ($20) |
| Longevity | 🛑 Legacy (Legacy / 65 nm) | 🛑 Legacy (Thorton (2001−2003) / 130 nm) |
💎 Value Proposition
| Insight | Celeron 540 | Athlon XP 3100+ |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+284%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($5) | ⚠️ Higher cost ($20) |
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 Athlon XP 3100+

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.

Athlon XP 3100+
The Athlon XP 3100+ is manufactured by AMD. It was released in 2009-01-01. It is based on the Thorton (2001−2003) architecture. It features 1 cores and 1 threads. Max frequency: 2.2 GHz. L3 cache: 0 kB. L2 cache: 256 kB. Built on 130 nm process technology. Socket: A. Thermal design power (TDP): 68 Watt. Passmark benchmark score: 425 points. Launch price was $149.
Processing Power
The Athlon XP 3100+ is built on the Thorton (2001−2003) architecture. In PassMark, the Celeron 540 scores 408 against the Athlon XP 3100+'s 425 — a 4.1% lead for the Athlon XP 3100+. L3 cache: 1 MB L2 Cache on the Celeron 540 vs 0 kB on the Athlon XP 3100+.
| Feature | Celeron 540 | Athlon XP 3100+ |
|---|---|---|
| Cores / Threads | — | 1 / 1 |
| Boost Clock | — | 2.2 GHz |
| Base Clock | 1.86 GHz | — |
| L3 Cache | 1 MB L2 Cache | 0 kB |
| L2 Cache | — | 256 kB |
| Process | 65 nm-50% | 130 nm |
| Architecture | — | Thorton (2001−2003) |
| PassMark | 408 | 425+4% |
Memory & Platform
The Celeron 540 uses the PGA478 socket (PCIe 1.1), while the Athlon XP 3100+ uses A (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR2-667 on the Celeron 540 versus DDR-333 on the Athlon XP 3100+ — the Celeron 540 supports -202.4% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 4 GB of RAM. Memory channels: 2 (Celeron 540) vs 1 (Athlon XP 3100+). Both provide 0 PCIe lanes. Chipset compatibility: Santa Rosa (Celeron 540) and AMD Socket A (Athlon XP 3100+).
| Feature | Celeron 540 | Athlon XP 3100+ |
|---|---|---|
| Socket | PGA478 | A |
| PCIe Generation | PCIe 1.1 | PCIe 1.1 |
| Max RAM Speed | DDR2-667 | DDR-333 |
| Max RAM Capacity | 4 GB | 4 GB |
| RAM Channels | 2+100% | 1 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 0 | 0 |
Advanced Features
Virtualization: No (Celeron 540) / not specified (Athlon XP 3100+). Primary use case: Celeron 540 targets Budget. Direct competitor: Celeron 540 rivals Pentium T2310.
| Feature | Celeron 540 | Athlon XP 3100+ |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | No | — |
| Target Use | Budget | — |
Value Analysis
The Celeron 540 launched at $86 MSRP, while the Athlon XP 3100+ debuted at $150. At current prices ($5 vs $20), the Celeron 540 is $15 cheaper. In terms of value (PassMark points per dollar), the Celeron 540 delivers 81.6 pts/$ vs 21.3 pts/$ for the Athlon XP 3100+ — making the Celeron 540 the 117.4% better value option.
| Feature | Celeron 540 | Athlon XP 3100+ |
|---|---|---|
| MSRP | $86-43% | $150 |
| Avg Price (30d) | $5-75% | $20 |
| Performance per Dollar | 81.6+283% | 21.3 |
| Release Date | 2007 | 2003 |
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