
Core 2 Duo E6550

Xeon E3120
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 Core 2 Duo E6550 is positioned at rank 1022 and the Xeon E3120 is on rank 948, so the Xeon E3120 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core 2 Duo E6550
Performance Per Dollar Xeon E3120
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core 2 Duo E6550 | Xeon E3120 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($20) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Conroe (2006−2007) / 65 nm) | 🛑 Legacy (Legacy / 45 nm) |
💎 Value Proposition
| Insight | Core 2 Duo E6550 | Xeon E3120 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($20) | ✅ 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 Core 2 Duo E6550 and Xeon E3120

Core 2 Duo E6550
The Core 2 Duo E6550 is manufactured by Intel. It was released in 2008-01-01. It is based on the Conroe (2006−2007) architecture. It features 2 cores and 2 threads. Base frequency is 2.33 GHz, with boost up to 2.33 GHz. L3 cache: 0 kB. L2 cache: 4 MB. Built on 65 nm process technology. Socket: LGA775. Thermal design power (TDP): 65 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 1,395 points. Launch price was $249.

Xeon E3120
The Xeon E3120 is manufactured by Intel. It was released in 2015-01-01. Base frequency: 3.16 GHz. L3 cache: 6 MB L2 Cache. Built on 45 nm process technology. Socket: LGA775. Thermal design power (TDP): 65 Watt. Passmark benchmark score: 1,408 points. Launch price was $800.
Processing Power
The Core 2 Duo E6550 is built on the Conroe (2006−2007) architecture. In PassMark, the Core 2 Duo E6550 scores 1,395 against the Xeon E3120's 1,408 — a 0.9% lead for the Xeon E3120. L3 cache: 0 kB on the Core 2 Duo E6550 vs 6 MB L2 Cache on the Xeon E3120.
| Feature | Core 2 Duo E6550 | Xeon E3120 |
|---|---|---|
| Cores / Threads | 2 / 2 | — |
| Boost Clock | 2.33 GHz | — |
| Base Clock | 2.33 GHz | 3.16 GHz+36% |
| L3 Cache | 0 kB | 6 MB L2 Cache |
| L2 Cache | 4 MB | — |
| Process | 65 nm | 45 nm-31% |
| Architecture | Conroe (2006−2007) | — |
| PassMark | 1,395 | 1,408 |
Memory & Platform
Both processors use the LGA775 socket with PCIe 1.1.
| Feature | Core 2 Duo E6550 | Xeon E3120 |
|---|---|---|
| Socket | LGA775 | LGA775 |
| PCIe Generation | PCIe 1.1 | PCIe 2.0+82% |
| Max RAM Speed | 1333 | — |
| Max RAM Capacity | 16 | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 16 | — |
Advanced Features
Virtualization: true (Core 2 Duo E6550) / not specified (Xeon E3120). Direct competitor: Core 2 Duo E6550 rivals Athlon 64 X2 6000+.
| Feature | Core 2 Duo E6550 | Xeon E3120 |
|---|---|---|
| Integrated GPU | No | — |
| IGPU Model | None | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | true | — |
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