Athlon X2 QL-66
PRO A4-8350B
Athlon X2 QL-66 vs PRO A4-8350B Performance Spectrum
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.
Athlon X2 QL-66 vs PRO A4-8350B FPS Benchmarks
Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.
Search any supported game below to compare 1080p FPS for both components.
Path of Exile 2
Counter-Strike 2
League of Legends
Valorant
Among Us
Apex Legends
ARC Raiders
Baldur's Gate 3
Call of Duty: Black Ops 6
Athlon X2 QL-66 vs PRO A4-8350B: Pros, Cons & Final Verdict
See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.
Athlon X2 QL-66
2009Why buy it
- ✅+0.3% higher PassMark.
- ✅Draws 1W instead of 65W, a 64W reduction.
Trade-offs
- ❌Launch MSRP is still $150 MSRP, while PRO A4-8350B mostly shows up through inconsistent older-market listings.
PRO A4-8350B
2015Why buy it
Trade-offs
- ❌Lower PassMark (1,690 vs 1,695).
- ❌6400% higher power demand at 65W vs 1W.
Quick Answers
So, is Athlon X2 QL-66 better than PRO A4-8350B?
Which one is better for streaming, content creation, and heavy multitasking?
Which one is the smarter buy today, not just the cheaper CPU?
Which one is more future-proof for 2026 and beyond?
Athlon X2 QL-66 vs PRO A4-8350B Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.
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.
PRO A4-8350B
The PRO A4-8350B is manufactured by AMD. It was released in 29 September 2015 (10 years ago). It is based on the Kaveri (2014−2015) architecture. It features 2 cores and 2 threads. Base frequency is 3.5 GHz, with boost up to 3.9 GHz. L2 cache: 1024 kB. Built on 28 nm process technology. Socket: FM2+. Thermal design power (TDP): 65 Watt. Memory support: DDR3-1866. Passmark benchmark score: 1,690 points. Launch price was $69.
Processing Power
Both the Athlon X2 QL-66 and PRO A4-8350B share an identical 2-core/2-thread configuration. Boost clocks reach 2.2 GHz on the Athlon X2 QL-66 versus 3.9 GHz on the PRO A4-8350B — a 55.7% clock advantage for the PRO A4-8350B. The Athlon X2 QL-66 uses the Lion (2008−2009) architecture (65 nm), while the PRO A4-8350B uses Kaveri (2014−2015) (28 nm). In PassMark, the Athlon X2 QL-66 scores 1,695 against the PRO A4-8350B's 1,690 — a 0.3% lead for the Athlon X2 QL-66.
| Feature | Athlon X2 QL-66 | PRO A4-8350B |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 2.2 GHz | 3.9 GHz+77% |
| Base Clock | — | 3.5 GHz |
| L2 Cache | 1 MB | 1024 kB |
| Process | 65 nm | 28 nm-57% |
| Architecture | Lion (2008−2009) | Kaveri (2014−2015) |
| PassMark | 1,695 | 1,690 |
Memory & Platform
The Athlon X2 QL-66 uses the S1g2 socket (PCIe 2.0), while the PRO A4-8350B uses FM2+ (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Athlon X2 QL-66 | PRO A4-8350B |
|---|---|---|
| Socket | S1g2 | FM2+ |
| PCIe Generation | PCIe 2.0 | PCIe 3.0+50% |
| Max RAM Speed | DDR2-667 | — |
| Max RAM Capacity | 8 GB | — |
| RAM Channels | 2 | — |
| ECC Support | No | — |
| PCIe Lanes | 0 | — |
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