
Pentium 4425Y vs Athlon X2 QL-66

Pentium 4425Y

Athlon X2 QL-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 Pentium 4425Y is positioned at rank 941 and the Athlon X2 QL-66 is on rank 1048, 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 Pentium 4425Y
Performance Per Dollar Athlon X2 QL-66
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Pentium 4425Y | Athlon X2 QL-66 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($5) |
| Longevity | ✨ Modern (NetBurst (2000−2006) / 14 nm) | 🛑 Legacy (Lion (2008−2009) / 65 nm) |
💎 Value Proposition
| Insight | Pentium 4425Y | Athlon X2 QL-66 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($5) |
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 4425Y and Athlon X2 QL-66

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.

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.
Processing Power
The Pentium 4425Y packs 2 cores / 4 threads, matching the Athlon X2 QL-66's 2 cores. The Pentium 4425Y uses the NetBurst (2000−2006) architecture (14 nm), while the Athlon X2 QL-66 uses Lion (2008−2009) (65 nm). In PassMark, the Pentium 4425Y scores 1,699 against the Athlon X2 QL-66's 1,695 — a 0.2% lead for the Pentium 4425Y.
| Feature | Pentium 4425Y | Athlon X2 QL-66 |
|---|---|---|
| Cores / Threads | 2 / 4 | 2 / 2 |
| Boost Clock | — | 2.2 GHz |
| Base Clock | 1.7 GHz | — |
| L3 Cache | 2 MB | — |
| L2 Cache | — | 1 MB |
| Process | 14 nm-78% | 65 nm |
| Architecture | NetBurst (2000−2006) | Lion (2008−2009) |
| PassMark | 1,699 | 1,695 |
Memory & Platform
The Pentium 4425Y uses the FCBGA1515 socket (PCIe 3.0), while the Athlon X2 QL-66 uses S1g2 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Pentium 4425Y | Athlon X2 QL-66 |
|---|---|---|
| Socket | FCBGA1515 | S1g2 |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
| Max RAM Speed | — | DDR2-667 |
| Max RAM Capacity | — | 8 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ❌ |
| PCIe Lanes | — | 0 |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
















