Sempron 2800+ vs Atom Z540
Sempron 2800+
Atom Z540
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 2800+ is positioned at rank 1073 and the Atom Z540 is on rank 334, so the Atom Z540 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Sempron 2800+
Performance Per Dollar Atom Z540
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Sempron 2800+ | Atom Z540 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($29) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Manila (2001−2006) / 130 nm) | 🛑 Legacy (Silverthorne (2008−2010) / 45 nm) |
💎 Value Proposition
| Insight | Sempron 2800+ | Atom Z540 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($29) | ✅ 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.
Path of Exile 2
Counter-Strike 2
League of Legends
Valorant
Technical Specifications
Side-by-side comparison of Sempron 2800+ and Atom Z540
Sempron 2800+
The Sempron 2800+ is manufactured by AMD. It was released in Janeiro 2001 (24 years ago). It is based on the Manila (2001−2006) architecture. It features 1 cores and 1 threads. Max frequency: 2 GHz. L3 cache: 0 kB. L2 cache: 256K. Built on 130 nm process technology. Socket: AM2. Thermal design power (TDP): 62 Watt. Passmark benchmark score: 320 points. Launch price was $104.
Atom Z540
The Atom Z540 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 1.86 GHz, with boost up to 0.07 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 45 nm process technology. Socket: PBGA441. Thermal design power (TDP): 2.4 Watt. Passmark benchmark score: 305 points. Launch price was $160.
Processing Power
The Sempron 2800+ packs 1 cores / 1 threads, matching the Atom Z540's 1 cores. Boost clocks reach 2 GHz on the Sempron 2800+ versus 0.07 GHz on the Atom Z540 — a 186.5% clock advantage for the Sempron 2800+. The Sempron 2800+ uses the Manila (2001−2006) architecture (130 nm), while the Atom Z540 uses Silverthorne (2008−2010) (45 nm). In PassMark, the Sempron 2800+ scores 320 against the Atom Z540's 305 — a 4.8% lead for the Sempron 2800+. Both processors carry 0 kB of L3 cache.
| Feature | Sempron 2800+ | Atom Z540 |
|---|---|---|
| Cores / Threads | 1 / 1 | 1 / 2 |
| Boost Clock | 2 GHz+2757% | 0.07 GHz |
| Base Clock | — | 1.86 GHz |
| L3 Cache | 0 kB | 0 kB |
| L2 Cache | 256K | 512 kB+100% |
| Process | 130 nm | 45 nm-65% |
| Architecture | Manila (2001−2006) | Silverthorne (2008−2010) |
| PassMark | 320+5% | 305 |
Memory & Platform
The Sempron 2800+ uses the AM2 socket (PCIe 2.0), while the Atom Z540 uses PBGA441 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR-333 on the Sempron 2800+ versus DDR2-533 on the Atom Z540 — the Atom Z540 supports -202.4% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 2 GB of RAM. Both feature 1-channel memory with ECC support. Both provide 0 PCIe lanes.
| Feature | Sempron 2800+ | Atom Z540 |
|---|---|---|
| Socket | AM2 | PBGA441 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | DDR-333 | DDR2-533 |
| Max RAM Capacity | 2 GB | 2 GB |
| RAM Channels | 1 | 1 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 0 | 0 |
Advanced Features
Virtualization: None (Sempron 2800+) / not specified (Atom Z540). Primary use case: Sempron 2800+ targets Budget.
| Feature | Sempron 2800+ | Atom Z540 |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | None | — |
| Target Use | Budget | — |
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