Athlon X2 QL-66 vs Pentium 4425Y
Athlon X2 QL-66
Pentium 4425Y
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 Athlon X2 QL-66 is positioned at rank 1048 and the Pentium 4425Y is on rank 941, so the Pentium 4425Y offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Athlon X2 QL-66
Performance Per Dollar Pentium 4425Y
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Athlon X2 QL-66 | Pentium 4425Y |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($5) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Lion (2008−2009) / 65 nm) | ✨ Modern (NetBurst (2000−2006) / 14 nm) |
💎 Value Proposition
| Insight | Athlon X2 QL-66 | Pentium 4425Y |
|---|---|---|
| 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 Athlon X2 QL-66 and Pentium 4425Y
Athlon X2 QL-66
The Athlon X2 QL-66 is manufactured by AMD. It was released in 2009-01-01. It is based on the Lion (2008−2009) architecture. It features 2 cores and 2 threads. Max frequency: 2.2 GHz. L2 cache: 1 MB. Built on 65 nm process technology. Socket: S1g2. Thermal design power (TDP): 1 MB. Passmark benchmark score: 1,695 points. Launch price was $149.
Pentium 4425Y
The Pentium 4425Y is manufactured by Intel. It was released in 2007-01-01. It is based on the NetBurst (2000−2006) architecture. It features 2 cores and 4 threads. Base frequency: 1.7 GHz. L3 cache: 2 MB. Built on 14 nm process technology. Socket: FCBGA1515. Thermal design power (TDP): 6 Watt. Memory support: LPDDR3-1866, DDR3L-1600. Passmark benchmark score: 1,699 points. Launch price was $69.
Processing Power
The Athlon X2 QL-66 packs 2 cores / 2 threads, matching the Pentium 4425Y's 2 cores. The Athlon X2 QL-66 uses the Lion (2008−2009) architecture (65 nm), while the Pentium 4425Y uses NetBurst (2000−2006) (14 nm). In PassMark, the Athlon X2 QL-66 scores 1,695 against the Pentium 4425Y's 1,699 — a 0.2% lead for the Pentium 4425Y.
| Feature | Athlon X2 QL-66 | Pentium 4425Y |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 4 |
| Boost Clock | 2.2 GHz | — |
| Base Clock | — | 1.7 GHz |
| L3 Cache | — | 2 MB |
| L2 Cache | 1 MB | — |
| Process | 65 nm | 14 nm-78% |
| Architecture | Lion (2008−2009) | NetBurst (2000−2006) |
| PassMark | 1,695 | 1,699 |
Memory & Platform
The Athlon X2 QL-66 uses the S1g2 socket (PCIe 2.0), while the Pentium 4425Y uses FCBGA1515 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Athlon X2 QL-66 | Pentium 4425Y |
|---|---|---|
| Socket | S1g2 | FCBGA1515 |
| PCIe Generation | PCIe 2.0 | PCIe 3.0+50% |
| Max RAM Speed | DDR2-667 | — |
| Max RAM Capacity | 8 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 0 | — |
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