
Xeon E5345 vs Athlon II X3 450

Xeon E5345

Athlon II X3 450
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 Xeon E5345 is positioned at rank 887 and the Athlon II X3 450 is on rank 761, so the Athlon II X3 450 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon E5345
Performance Per Dollar Athlon II X3 450
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon E5345 | Athlon II X3 450 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($15) |
| Longevity | 🛑 Legacy (Clovertown (2006−2007) / 65 nm) | 🛑 Legacy (Rana (2009−2011) / 45 nm) |
💎 Value Proposition
| Insight | Xeon E5345 | Athlon II X3 450 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($15) |
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 Xeon E5345 and Athlon II X3 450

Xeon E5345
The Xeon E5345 is manufactured by Intel. It was released in 14 November 2006 (19 years ago). It is based on the Clovertown (2006−2007) architecture. It features 4 cores and 4 threads. Base frequency is 2.33 GHz, with boost up to 0.33 GHz. L3 cache: 8 MB L2 Cache. L2 cache: 4 MB (total). Built on 65 nm process technology. Socket: LGA771. Thermal design power (TDP): 80 Watt. Memory support: DDR2, DDR3 Depends on motherboard. Passmark benchmark score: 1,868 points. Launch price was $851.

Athlon II X3 450
The Athlon II X3 450 is manufactured by AMD. It was released in 21 September 2010 (15 years ago). It is based on the Rana (2009−2011) architecture. It features 3 cores and 3 threads. Base frequency is 3.2 GHz, with boost up to 3.2 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 1,865 points. Launch price was $45.
Processing Power
The Xeon E5345 packs 4 cores / 4 threads, while the Athlon II X3 450 offers 3 cores / 3 threads — the Xeon E5345 has 1 more core. Boost clocks reach 0.33 GHz on the Xeon E5345 versus 3.2 GHz on the Athlon II X3 450 — a 162.6% clock advantage for the Athlon II X3 450 (base: 2.33 GHz vs 3.2 GHz). The Xeon E5345 uses the Clovertown (2006−2007) architecture (65 nm), while the Athlon II X3 450 uses Rana (2009−2011) (45 nm). In PassMark, the Xeon E5345 scores 1,868 against the Athlon II X3 450's 1,865 — a 0.2% lead for the Xeon E5345. L3 cache: 8 MB L2 Cache on the Xeon E5345 vs 0 kB on the Athlon II X3 450.
| Feature | Xeon E5345 | Athlon II X3 450 |
|---|---|---|
| Cores / Threads | 4 / 4+33% | 3 / 3 |
| Boost Clock | 0.33 GHz | 3.2 GHz+870% |
| Base Clock | 2.33 GHz | 3.2 GHz+37% |
| L3 Cache | 8 MB L2 Cache | 0 kB |
| L2 Cache | 4 MB (total)+700% | 512 kB (per core) |
| Process | 65 nm | 45 nm-31% |
| Architecture | Clovertown (2006−2007) | Rana (2009−2011) |
| PassMark | 1,868 | 1,865 |
| Geekbench 6 Single | — | 380 |
| Geekbench 6 Multi | — | 980 |
Memory & Platform
The Xeon E5345 uses the LGA771 socket (PCIe 2.0), while the Athlon II X3 450 uses AM3 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Xeon E5345 | Athlon II X3 450 |
|---|---|---|
| Socket | LGA771 | AM3 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | — | DDR3-1333 |
| Max RAM Capacity | — | 32 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ❌ |
| PCIe Lanes | — | 16 |
Advanced Features
Virtualization: not specified (Xeon E5345) / AMD-V (Athlon II X3 450). Primary use case: Athlon II X3 450 targets Desktop.
| Feature | Xeon E5345 | Athlon II X3 450 |
|---|---|---|
| Integrated GPU | — | No |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | AMD-V |
| Target Use | — | Desktop |
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