Athlon X2 QL-66 vs A4-4355M
Athlon X2 QL-66
A4-4355M
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 A4-4355M is on rank 730, so the A4-4355M 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 A4-4355M
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Athlon X2 QL-66 | A4-4355M |
|---|---|---|
| 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 (Lion (2008−2009) / 65 nm) | 🛑 Legacy (Trinity (2012−2013) / 32 nm) |
💎 Value Proposition
| Insight | Athlon X2 QL-66 | A4-4355M |
|---|---|---|
| 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 A4-4355M
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.
A4-4355M
The A4-4355M is manufactured by AMD. It was released in 2014-01-01. It is based on the Trinity (2012−2013) architecture. It features 2 cores and 2 threads. Base frequency is 1.9 GHz, with boost up to 2.4 GHz. L3 cache: 0 kB. L2 cache: 1 MB (total). Built on 32 nm process technology. Socket: FP2. Thermal design power (TDP): 17 Watt. Memory support: unknown Dual-channel. Passmark benchmark score: 1,690 points. Launch price was $50.
Processing Power
Both the Athlon X2 QL-66 and A4-4355M share an identical 2-core/2-thread configuration. Boost clocks reach 2.2 GHz on the Athlon X2 QL-66 versus 2.4 GHz on the A4-4355M — a 8.7% clock advantage for the A4-4355M. The Athlon X2 QL-66 uses the Lion (2008−2009) architecture (65 nm), while the A4-4355M uses Trinity (2012−2013) (32 nm). In PassMark, the Athlon X2 QL-66 scores 1,695 against the A4-4355M's 1,690 — a 0.3% lead for the Athlon X2 QL-66.
| Feature | Athlon X2 QL-66 | A4-4355M |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 2.2 GHz | 2.4 GHz+9% |
| Base Clock | — | 1.9 GHz |
| L3 Cache | — | 0 kB |
| L2 Cache | 1 MB | 1 MB (total) |
| Process | 65 nm | 32 nm-51% |
| Architecture | Lion (2008−2009) | Trinity (2012−2013) |
| PassMark | 1,695 | 1,690 |
| Geekbench 6 Single | — | 239 |
Memory & Platform
The Athlon X2 QL-66 uses the S1g2 socket (PCIe 2.0), while the A4-4355M uses FP2 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR2-667 on the Athlon X2 QL-66 versus DDR3-1333 on the A4-4355M — the A4-4355M supports 40% faster memory, which can translate to measurable gains in memory-sensitive workloads. The A4-4355M supports up to 16 GB of RAM compared to 8 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Athlon X2 QL-66) vs 16 (A4-4355M) — the A4-4355M offers 16 more lanes for additional GPUs or NVMe drives.
| Feature | Athlon X2 QL-66 | A4-4355M |
|---|---|---|
| Socket | S1g2 | FP2 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | DDR2-667 | DDR3-1333+50% |
| Max RAM Capacity | 8 GB | 16 GB+100% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 0 | 16 |
Advanced Features
Virtualization: not specified (Athlon X2 QL-66) / AMD-V (A4-4355M). The A4-4355M includes integrated graphics (Radeon HD 7400G), while the Athlon X2 QL-66 requires a dedicated GPU. Primary use case: A4-4355M targets Ultrathin Laptop. Direct competitor: A4-4355M rivals Pentium 2117U.
| Feature | Athlon X2 QL-66 | A4-4355M |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | — | Radeon HD 7400G |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | AMD-V |
| Target Use | — | Ultrathin Laptop |
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