Xeon X5450 vs Phenom II X4 850
Xeon X5450
Phenom II X4 850
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 X5450 is positioned at rank 807 and the Phenom II X4 850 is on rank 251, so the Phenom II X4 850 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon X5450
Performance Per Dollar Phenom II X4 850
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon X5450 | Phenom II X4 850 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($28) |
| Longevity | 🛑 Legacy (Harpertown (2007−2008) / 45 nm) | 🛑 Legacy (Propus (2009−2011) / 45 nm) |
💎 Value Proposition
| Insight | Xeon X5450 | Phenom II X4 850 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($28) |
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 X5450 and Phenom II X4 850
Xeon X5450
The Xeon X5450 is manufactured by Intel. It was released in 11 November 2007 (18 years ago). It is based on the Harpertown (2007−2008) architecture. It features 4 cores and 4 threads. Base frequency is 3 GHz, with boost up to 3 GHz. L3 cache: 12 MB L2 Cache. L2 cache: 6 MB (total). Built on 45 nm process technology. Socket: LGA771. Thermal design power (TDP): 120 Watt. Memory support: DDR2, DDR3 Depends on motherboard. Passmark benchmark score: 2,416 points. Launch price was $851.
Phenom II X4 850
The Phenom II X4 850 is manufactured by AMD. It was released in 1 June 2011 (14 years ago). It is based on the Propus (2009−2011) architecture. It features 4 cores and 4 threads. Base frequency is 3.3 GHz, with boost up to 3.3 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: 2,441 points. Launch price was $111.
Processing Power
Both the Xeon X5450 and Phenom II X4 850 share an identical 4-core/4-thread configuration. Boost clocks reach 3 GHz on the Xeon X5450 versus 3.3 GHz on the Phenom II X4 850 — a 9.5% clock advantage for the Phenom II X4 850 (base: 3 GHz vs 3.3 GHz). The Xeon X5450 uses the Harpertown (2007−2008) architecture (45 nm), while the Phenom II X4 850 uses Propus (2009−2011) (45 nm). In PassMark, the Xeon X5450 scores 2,416 against the Phenom II X4 850's 2,441 — a 1% lead for the Phenom II X4 850. L3 cache: 12 MB L2 Cache on the Xeon X5450 vs 0 kB on the Phenom II X4 850.
| Feature | Xeon X5450 | Phenom II X4 850 |
|---|---|---|
| Cores / Threads | 4 / 4 | 4 / 4 |
| Boost Clock | 3 GHz | 3.3 GHz+10% |
| Base Clock | 3 GHz | 3.3 GHz+10% |
| L3 Cache | 12 MB L2 Cache | 0 kB |
| L2 Cache | 6 MB (total)+1100% | 512 kB (per core) |
| Process | 45 nm | 45 nm |
| Architecture | Harpertown (2007−2008) | Propus (2009−2011) |
| PassMark | 2,416 | 2,441+1% |
Memory & Platform
The Xeon X5450 uses the LGA771 socket (PCIe 2.0), while the Phenom II X4 850 uses AM3 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Xeon X5450 | Phenom II X4 850 |
|---|---|---|
| Socket | LGA771 | AM3 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
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