CPU
GPU
Pentium 4 2.66
Sempron 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 Pentium 4 2.66 is positioned at rank 1113 and the Sempron 3100+ is on rank 1068, so the Sempron 3100+ offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Pentium 4 2.66
Performance Per Dollar Sempron 3100+
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Pentium 4 2.66 | Sempron 3100+ |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($300) | ✅ More affordable ($15) |
| Longevity | 🛑 Legacy (NetBurst (2000−2006) / 130 nm) | 🛑 Legacy (Palermo (2001−2005) / 130 nm) |
💎 Value Proposition
| Insight | Pentium 4 2.66 | Sempron 3100+ |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+1868%) |
| Upfront Cost | ⚠️ Higher cost ($300) | ✅ More affordable ($15) |
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 Pentium 4 2.66 and Sempron 3100+
Pentium 4 2.66
The Pentium 4 2.66 is manufactured by Intel. It was released in 2007-01-01. It is based on the NetBurst (2000−2006) architecture. It features 1 cores and 1 threads. Max frequency: 2.66 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 130 nm process technology. Socket: PGA478. Thermal design power (TDP): 110 Watt. Memory support: DDR1, DDR2. Passmark benchmark score: 378 points. Launch price was $69.
Sempron 3100+
The Sempron 3100+ is manufactured by AMD. It was released in Janeiro 2001 (24 years ago). It is based on the Palermo (2001−2005) architecture. It features 1 cores and 1 threads. Max frequency: 1.8 GHz. L3 cache: 0 kB. L2 cache: 256 kB. Built on 130 nm process technology. Socket: 754. Thermal design power (TDP): 62 Watt. Passmark benchmark score: 372 points. Launch price was $60.
Processing Power
Both the Pentium 4 2.66 and Sempron 3100+ share an identical 1-core/1-thread configuration. Boost clocks reach 2.66 GHz on the Pentium 4 2.66 versus 1.8 GHz on the Sempron 3100+ — a 38.6% clock advantage for the Pentium 4 2.66. The Pentium 4 2.66 uses the NetBurst (2000−2006) architecture (130 nm), while the Sempron 3100+ uses Palermo (2001−2005) (130 nm). In PassMark, the Pentium 4 2.66 scores 378 against the Sempron 3100+'s 372 — a 1.6% lead for the Pentium 4 2.66. Both processors carry 0 kB of L3 cache.
| Feature | Pentium 4 2.66 | Sempron 3100+ |
|---|---|---|
| Cores / Threads | 1 / 1 | 1 / 1 |
| Boost Clock | 2.66 GHz+48% | 1.8 GHz |
| L3 Cache | 0 kB | 0 kB |
| L2 Cache | 512 kB+100% | 256 kB |
| Process | 130 nm | 130 nm |
| Architecture | NetBurst (2000−2006) | Palermo (2001−2005) |
| PassMark | 378+2% | 372 |
Memory & Platform
The Pentium 4 2.66 uses the PGA478 socket (PCIe 1.1), while the Sempron 3100+ uses 754 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Pentium 4 2.66 | Sempron 3100+ |
|---|---|---|
| Socket | PGA478 | 754 |
| PCIe Generation | PCIe 1.1 | PCIe 2.0+82% |
| Max RAM Speed | — | DDR 400 MHz |
| Max RAM Capacity | — | 3 GB |
| RAM Channels | — | 1 |
| ECC Support | — | ❌ |
| PCIe Lanes | — | 0 |
Advanced Features
Virtualization: not specified (Pentium 4 2.66) / false (Sempron 3100+). Primary use case: Sempron 3100+ targets Budget.
| Feature | Pentium 4 2.66 | Sempron 3100+ |
|---|---|---|
| Integrated GPU | — | No |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | false |
| Target Use | — | Budget |
Value Analysis
The Pentium 4 2.66 launched at $300 MSRP, while the Sempron 3100+ debuted at $65. At current prices ($300 vs $15), the Sempron 3100+ is $285 cheaper. In terms of value (PassMark points per dollar), the Pentium 4 2.66 delivers 1.3 pts/$ vs 24.8 pts/$ for the Sempron 3100+ — making the Sempron 3100+ the 180.7% better value option.
| Feature | Pentium 4 2.66 | Sempron 3100+ |
|---|---|---|
| MSRP | $300 | $65-78% |
| Avg Price (30d) | $300 | $15-95% |
| Performance per Dollar | 1.3 | 24.8+1808% |
| Release Date | 2002 | 2001 |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
You May Also Compare
Similar CPU comparisons based on Pentium 4 2.66 and Sempron 3100+
