Atom Z520 vs Sempron 2300+
Atom Z520
Sempron 2300+
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 Atom Z520 is positioned at rank 523 and the Sempron 2300+ is on rank 1026, so the Atom Z520 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Atom Z520
Performance Per Dollar Sempron 2300+
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Atom Z520 | Sempron 2300+ |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Silverthorne (2008−2010) / 45 nm) | 🛑 Legacy (Barton (2001−2004) / 130 nm) |
💎 Value Proposition
| Insight | Atom Z520 | Sempron 2300+ |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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 Atom Z520 and Sempron 2300+
Atom Z520
The Atom Z520 is manufactured by Intel. It was released in 2 April 2008 (17 years ago). It is based on the Silverthorne (2008−2010) architecture. It features 1 cores and 2 threads. Base frequency is 1.33 GHz, with boost up to 0.03 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 45 nm process technology. Socket: PBGA441. Thermal design power (TDP): 2 Watt. Passmark benchmark score: 215 points. Launch price was $65.
Sempron 2300+
The Sempron 2300+ is manufactured by AMD. It was released in Janeiro 2001 (24 years ago). It is based on the Barton (2001−2004) architecture. It features 1 cores and 1 threads. Max frequency: 1.58 GHz. L3 cache: 0 kB. L2 cache: 256 kB. Built on 130 nm process technology. Socket: A. Thermal design power (TDP): 62 Watt. Passmark benchmark score: 248 points. Launch price was $45.
Processing Power
The Atom Z520 packs 1 cores / 2 threads, matching the Sempron 2300+'s 1 cores. Boost clocks reach 0.03 GHz on the Atom Z520 versus 1.58 GHz on the Sempron 2300+ — a 192.5% clock advantage for the Sempron 2300+. The Atom Z520 uses the Silverthorne (2008−2010) architecture (45 nm), while the Sempron 2300+ uses Barton (2001−2004) (130 nm). In PassMark, the Atom Z520 scores 215 against the Sempron 2300+'s 248 — a 14.3% lead for the Sempron 2300+. Both processors carry 0 kB of L3 cache.
| Feature | Atom Z520 | Sempron 2300+ |
|---|---|---|
| Cores / Threads | 1 / 2 | 1 / 1 |
| Boost Clock | 0.03 GHz | 1.58 GHz+5167% |
| Base Clock | 1.33 GHz | — |
| L3 Cache | 0 kB | 0 kB |
| L2 Cache | 512 kB+100% | 256 kB |
| Process | 45 nm-65% | 130 nm |
| Architecture | Silverthorne (2008−2010) | Barton (2001−2004) |
| PassMark | 215 | 248+15% |
Memory & Platform
The Atom Z520 uses the PBGA441 socket (PCIe 2.0), while the Sempron 2300+ uses A (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Atom Z520 | Sempron 2300+ |
|---|---|---|
| Socket | PBGA441 | A |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | DDR2-533 | — |
| Max RAM Capacity | 2 GB | — |
| RAM Channels | 1 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 0 | — |
Advanced Features
Virtualization: VT-x (Atom Z520) / not specified (Sempron 2300+). Primary use case: Atom Z520 targets Mobile.
| Feature | Atom Z520 | Sempron 2300+ |
|---|---|---|
| Integrated GPU | No | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | VT-x | — |
| Target Use | Mobile | — |
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