
Athlon II Neo K345 vs Core 2 Duo T9800

Athlon II Neo K345

Core 2 Duo T9800
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 II Neo K345 is positioned at rank 812 and the Core 2 Duo T9800 is on rank 345, so the Core 2 Duo T9800 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Athlon II Neo K345
Performance Per Dollar Core 2 Duo T9800
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Athlon II Neo K345 | Core 2 Duo T9800 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($10) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Champlain (2010−2011) / 45 nm) | 🛑 Legacy (Penryn (2008−2011) / 45 nm) |
💎 Value Proposition
| Insight | Athlon II Neo K345 | Core 2 Duo T9800 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($10) | ✅ 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 II Neo K345 and Core 2 Duo T9800

Athlon II Neo K345
The Athlon II Neo K345 is manufactured by AMD. It was released in 2009-01-01. It is based on the Champlain (2010−2011) architecture. It features 2 cores and 2 threads. Max frequency: 1.4 GHz. L2 cache: 1 MB. Built on 45 nm process technology. Socket: S1. Thermal design power (TDP): 1 MB. Memory support: DDR3. Passmark benchmark score: 1,191 points. Launch price was $149.

Core 2 Duo T9800
The Core 2 Duo T9800 is manufactured by Intel. It was released in 1 January 2009 (16 years ago). It is based on the Penryn (2008−2011) architecture. It features 2 cores and 2 threads. Base frequency is 2.93 GHz, with boost up to 2.92 GHz. L3 cache: 6 MB L2 Cache. L2 cache: 6 MB. Built on 45 nm process technology. Socket: PGA478. Thermal design power (TDP): 35 Watt. Passmark benchmark score: 1,189 points. Launch price was $530.
Processing Power
Both the Athlon II Neo K345 and Core 2 Duo T9800 share an identical 2-core/2-thread configuration. Boost clocks reach 1.4 GHz on the Athlon II Neo K345 versus 2.92 GHz on the Core 2 Duo T9800 — a 70.4% clock advantage for the Core 2 Duo T9800. The Athlon II Neo K345 uses the Champlain (2010−2011) architecture (45 nm), while the Core 2 Duo T9800 uses Penryn (2008−2011) (45 nm). In PassMark, the Athlon II Neo K345 scores 1,191 against the Core 2 Duo T9800's 1,189 — a 0.2% lead for the Athlon II Neo K345.
| Feature | Athlon II Neo K345 | Core 2 Duo T9800 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 1.4 GHz | 2.92 GHz+109% |
| Base Clock | — | 2.93 GHz |
| L3 Cache | — | 6 MB L2 Cache |
| L2 Cache | 1 MB | 6 MB+500% |
| Process | 45 nm | 45 nm |
| Architecture | Champlain (2010−2011) | Penryn (2008−2011) |
| PassMark | 1,191 | 1,189 |
Memory & Platform
The Athlon II Neo K345 uses the S1 socket (PCIe 2.0), while the Core 2 Duo T9800 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard.
| Feature | Athlon II Neo K345 | Core 2 Duo T9800 |
|---|---|---|
| Socket | S1 | PGA478 |
| PCIe Generation | PCIe 2.0+82% | PCIe 1.1 |
| Max RAM Speed | DDR3-1066 | — |
| Max RAM Capacity | 4 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 0 | — |
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