CPU
GPU
Sempron 3100+
Athlon MP 2800+
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 3100+ is positioned at rank 1068 and the Athlon MP 2800+ is on rank 1026, so the Athlon MP 2800+ offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Sempron 3100+
Performance Per Dollar Athlon MP 2800+
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Sempron 3100+ | Athlon MP 2800+ |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($15) | ✅ More affordable ($10) |
| Longevity | 🛑 Legacy (Palermo (2001−2005) / 130 nm) | 🛑 Legacy (K7 (2000−2004) / 130 nm) |
💎 Value Proposition
| Insight | Sempron 3100+ | Athlon MP 2800+ |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+53%) |
| Upfront Cost | ⚠️ Higher cost ($15) | ✅ More affordable ($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 3100+ and Athlon MP 2800+
Sempron 3100+
The Sempron 3100+ is manufactured by AMD. It was released in Janeiro 2001 (24 years ago). It is based on the Palermo (2001−2005) architecture. It features 1 cores and 1 threads. Max frequency: 1.8 GHz. L3 cache: 0 kB. L2 cache: 256 kB. Built on 130 nm process technology. Socket: 754. Thermal design power (TDP): 62 Watt. Passmark benchmark score: 372 points. Launch price was $60.
Athlon MP 2800+
The Athlon MP 2800+ is manufactured by AMD. It was released in 6 May 2003 (22 years ago). It is based on the K7 (2000−2004) architecture. It features 1 cores and 1 threads. Max frequency: 2.13 GHz. L2 cache: 512 kB. Built on 130 nm process technology. Thermal design power (TDP): 60 Watt. Passmark benchmark score: 380 points. Launch price was $275.
Processing Power
Both the Sempron 3100+ and Athlon MP 2800+ share an identical 1-core/1-thread configuration. Boost clocks reach 1.8 GHz on the Sempron 3100+ versus 2.13 GHz on the Athlon MP 2800+ — a 16.8% clock advantage for the Athlon MP 2800+. The Sempron 3100+ uses the Palermo (2001−2005) architecture (130 nm), while the Athlon MP 2800+ uses K7 (2000−2004) (130 nm). In PassMark, the Sempron 3100+ scores 372 against the Athlon MP 2800+'s 380 — a 2.1% lead for the Athlon MP 2800+.
| Feature | Sempron 3100+ | Athlon MP 2800+ |
|---|---|---|
| Cores / Threads | 1 / 1 | 1 / 1 |
| Boost Clock | 1.8 GHz | 2.13 GHz+18% |
| L3 Cache | 0 kB | — |
| L2 Cache | 256 kB | 512 kB+100% |
| Process | 130 nm | 130 nm |
| Architecture | Palermo (2001−2005) | K7 (2000−2004) |
| PassMark | 372 | 380+2% |
Memory & Platform
Maximum memory speed reaches DDR 400 MHz on the Sempron 3100+ versus DDR-266 on the Athlon MP 2800+ — the Sempron 3100+ supports 994% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Athlon MP 2800+ supports up to 4 GB of RAM compared to 3 GB — 28.6% more capacity for professional workloads. Both feature 1-channel memory with ECC support. Both provide 0 PCIe lanes. Chipset compatibility: nForce3,VIA K8T800 (Sempron 3100+) and AMD Socket A (Athlon MP 2800+).
| Feature | Sempron 3100+ | Athlon MP 2800+ |
|---|---|---|
| Socket | 754 | — |
| PCIe Generation | PCIe 2.0+82% | PCIe 1.1 |
| Max RAM Speed | DDR 400 MHz | DDR-266 |
| Max RAM Capacity | 3 GB | 4 GB+33% |
| RAM Channels | 1 | 1 |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 0 | 0 |
Advanced Features
Virtualization: false (Sempron 3100+) / not specified (Athlon MP 2800+). Primary use case: Sempron 3100+ targets Budget.
| Feature | Sempron 3100+ | Athlon MP 2800+ |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | false | — |
| Target Use | Budget | — |
Value Analysis
The Sempron 3100+ launched at $65 MSRP, while the Athlon MP 2800+ debuted at $275. At current prices ($15 vs $10), the Athlon MP 2800+ is $5 cheaper. In terms of value (PassMark points per dollar), the Sempron 3100+ delivers 24.8 pts/$ vs 38.0 pts/$ for the Athlon MP 2800+ — making the Athlon MP 2800+ the 42% better value option.
| Feature | Sempron 3100+ | Athlon MP 2800+ |
|---|---|---|
| MSRP | $65-76% | $275 |
| Avg Price (30d) | $15 | $10-33% |
| Performance per Dollar | 24.8 | 38.0+53% |
| Release Date | 2001 | 2003 |
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