
Core 2 Duo T6400 vs Xeon X3330

Core 2 Duo T6400

Xeon X3330
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 T6400 is positioned at rank 49 and the Xeon X3330 is on rank 854, so the Core 2 Duo T6400 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 T6400
Performance Per Dollar Xeon X3330
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core 2 Duo T6400 | Xeon X3330 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Penryn (2008−2011) / 45 nm) | 🛑 Legacy (Legacy / 45 nm) |
💎 Value Proposition
| Insight | Core 2 Duo T6400 | Xeon X3330 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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 T6400 and Xeon X3330

Core 2 Duo T6400
The Core 2 Duo T6400 is manufactured by Intel. It was released in 2008-01-01. It is based on the Penryn (2008−2011) architecture. It features 2 cores and 2 threads. Base frequency is 2 GHz, with boost up to 2 GHz. L3 cache: 2 MB L2 Cache. L2 cache: 2 MB. Built on 45 nm process technology. Socket: PGA478. Thermal design power (TDP): 35 Watt. Passmark benchmark score: 2,115 points. Launch price was $249.

Xeon X3330
The Xeon X3330 is manufactured by Intel. It was released in 2015-01-01. Base frequency: 2.66 GHz. L3 cache: 6 MB L2 Cache. Built on 45 nm process technology. Socket: LGA775. Thermal design power (TDP): 95 Watt. Passmark benchmark score: 2,102 points. Launch price was $800.
Processing Power
The Core 2 Duo T6400 is built on the Penryn (2008−2011) architecture. In PassMark, the Core 2 Duo T6400 scores 2,115 against the Xeon X3330's 2,102 — a 0.6% lead for the Core 2 Duo T6400. L3 cache: 2 MB L2 Cache on the Core 2 Duo T6400 vs 6 MB L2 Cache on the Xeon X3330.
| Feature | Core 2 Duo T6400 | Xeon X3330 |
|---|---|---|
| Cores / Threads | 2 / 2 | — |
| Boost Clock | 2 GHz | — |
| Base Clock | 2 GHz | 2.66 GHz+33% |
| L3 Cache | 2 MB L2 Cache | 6 MB L2 Cache+200% |
| L2 Cache | 2 MB | — |
| Process | 45 nm | 45 nm |
| Architecture | Penryn (2008−2011) | — |
| PassMark | 2,115 | 2,102 |
| Geekbench 6 Single | 650 | — |
| Geekbench 6 Multi | 1,300 | — |
Memory & Platform
The Core 2 Duo T6400 uses the PGA478 socket (PCIe 1.1), while the Xeon X3330 uses LGA775 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Core 2 Duo T6400 | Xeon X3330 |
|---|---|---|
| Socket | PGA478 | LGA775 |
| PCIe Generation | PCIe 1.1 | PCIe 2.0+82% |
| Max RAM Speed | DDR2-800 | — |
| Max RAM Capacity | 8 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 0 | — |
Advanced Features
Virtualization: No (Core 2 Duo T6400) / not specified (Xeon X3330). Primary use case: Core 2 Duo T6400 targets Mobile.
| Feature | Core 2 Duo T6400 | Xeon X3330 |
|---|---|---|
| Integrated GPU | No | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | No | — |
| Target Use | Mobile | — |
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