Athlon PRO 3045B vs Xeon E5540
Athlon PRO 3045B
Xeon E5540
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 PRO 3045B is positioned at rank 1177 and the Xeon E5540 is on rank 745, so the Xeon E5540 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Athlon PRO 3045B
Performance Per Dollar Xeon E5540
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Athlon PRO 3045B | Xeon E5540 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($180) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Dali (2020−2021) / 14 nm) | 🛑 Legacy (Gainestown (2009−2010) / 45 nm) |
💎 Value Proposition
| Insight | Athlon PRO 3045B | Xeon E5540 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($180) | ✅ 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 PRO 3045B and Xeon E5540
Athlon PRO 3045B
The Athlon PRO 3045B is manufactured by AMD. It was released in 2009-01-01. It is based on the Dali (2020−2021) architecture. It features 2 cores and 4 threads. Base frequency is 2.3 GHz, with boost up to 3.2 GHz. L3 cache: 4 MB (total). L2 cache: 512 kB (per core). Built on 14 nm process technology. Socket: FP5. Thermal design power (TDP): 15 Watt. Memory support: DDR4. Passmark benchmark score: 2,770 points. Launch price was $149.
Xeon E5540
The Xeon E5540 is manufactured by Intel. It was released in 30 March 2009 (16 years ago). It is based on the Gainestown (2009−2010) architecture. It features 4 cores and 8 threads. Base frequency is 2.53 GHz, with boost up to 2.8 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 45 nm process technology. Socket: LGA1366. Thermal design power (TDP): 80 Watt. Memory support: DDR3. Passmark benchmark score: 2,805 points. Launch price was $30.
Processing Power
The Athlon PRO 3045B packs 2 cores / 4 threads, while the Xeon E5540 offers 4 cores / 8 threads — the Xeon E5540 has 2 more cores. Boost clocks reach 3.2 GHz on the Athlon PRO 3045B versus 2.8 GHz on the Xeon E5540 — a 13.3% clock advantage for the Athlon PRO 3045B (base: 2.3 GHz vs 2.53 GHz). The Athlon PRO 3045B uses the Dali (2020−2021) architecture (14 nm), while the Xeon E5540 uses Gainestown (2009−2010) (45 nm). In PassMark, the Athlon PRO 3045B scores 2,770 against the Xeon E5540's 2,805 — a 1.3% lead for the Xeon E5540. L3 cache: 4 MB (total) on the Athlon PRO 3045B vs 8 MB (total) on the Xeon E5540.
| Feature | Athlon PRO 3045B | Xeon E5540 |
|---|---|---|
| Cores / Threads | 2 / 4 | 4 / 8+100% |
| Boost Clock | 3.2 GHz+14% | 2.8 GHz |
| Base Clock | 2.3 GHz | 2.53 GHz+10% |
| L3 Cache | 4 MB (total) | 8 MB (total)+100% |
| L2 Cache | 512 kB (per core)+100% | 256 kB (per core) |
| Process | 14 nm-69% | 45 nm |
| Architecture | Dali (2020−2021) | Gainestown (2009−2010) |
| PassMark | 2,770 | 2,805+1% |
Memory & Platform
The Athlon PRO 3045B uses the FP5 socket (PCIe 4.0), while the Xeon E5540 uses LGA1366 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Athlon PRO 3045B | Xeon E5540 |
|---|---|---|
| Socket | FP5 | LGA1366 |
| PCIe Generation | PCIe 4.0+100% | PCIe 2.0 |
| Max RAM Speed | DDR4-2400 | — |
| Max RAM Capacity | 32 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ✅ | — |
| PCIe Lanes | 8 | — |
Advanced Features
The Athlon PRO 3045B includes integrated graphics (AMD Radeon Vega 3), while the Xeon E5540 requires a dedicated GPU.
| Feature | Athlon PRO 3045B | Xeon E5540 |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | AMD Radeon Vega 3 | — |
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