Sempron 145 vs Athlon II Neo K145
Sempron 145
Athlon II Neo K145
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 Sempron 145 is positioned at rank 838 and the Athlon II Neo K145 is on rank 1048, so the Sempron 145 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Sempron 145
Performance Per Dollar Athlon II Neo K145
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Sempron 145 | Athlon II Neo K145 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($10) |
| Longevity | 🛑 Legacy (Sargas (2009−2011) / 45 nm) | 🛑 Legacy (Nile (2010) / 45 nm) |
💎 Value Proposition
| Insight | Sempron 145 | Athlon II Neo K145 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($10) |
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 Sempron 145 and Athlon II Neo K145
Sempron 145
The Sempron 145 is manufactured by AMD. It was released in 1 September 2010 (15 years ago). It is based on the Sargas (2009−2011) architecture. It features 1 cores and 1 threads. Base frequency is 2.8 GHz, with boost up to 2.8 GHz. L3 cache: 0 kB. L2 cache: 1 MB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 45 Watt. Memory support: DDR3. Passmark benchmark score: 544 points. Launch price was $95.
Athlon II Neo K145
The Athlon II Neo K145 is manufactured by AMD. It was released in 2009-01-01. It is based on the Nile (2010) architecture. It features 1 cores and 1 threads. Max frequency: 1.8 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: 565 points. Launch price was $149.
Processing Power
Both the Sempron 145 and Athlon II Neo K145 share an identical 1-core/1-thread configuration. Boost clocks reach 2.8 GHz on the Sempron 145 versus 1.8 GHz on the Athlon II Neo K145 — a 43.5% clock advantage for the Sempron 145. The Sempron 145 uses the Sargas (2009−2011) architecture (45 nm), while the Athlon II Neo K145 uses Nile (2010) (45 nm). In PassMark, the Sempron 145 scores 544 against the Athlon II Neo K145's 565 — a 3.8% lead for the Athlon II Neo K145.
| Feature | Sempron 145 | Athlon II Neo K145 |
|---|---|---|
| Cores / Threads | 1 / 1 | 1 / 1 |
| Boost Clock | 2.8 GHz+56% | 1.8 GHz |
| Base Clock | 2.8 GHz | — |
| L3 Cache | 0 kB | — |
| L2 Cache | 1 MB (per core) | 1 MB |
| Process | 45 nm | 45 nm |
| Architecture | Sargas (2009−2011) | Nile (2010) |
| PassMark | 544 | 565+4% |
Memory & Platform
The Sempron 145 uses the AM3 socket (PCIe 2.0), while the Athlon II Neo K145 uses S1 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Sempron 145 | Athlon II Neo K145 |
|---|---|---|
| Socket | AM3 | S1 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | — | DDR3-1066 |
| Max RAM Capacity | — | 4 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ❌ |
| PCIe Lanes | — | 0 |
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