
Core 2 Duo T5850 vs Core 2 Quad Q9505

Core 2 Duo T5850

Core 2 Quad Q9505
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 T5850 is positioned at rank 245 and the Core 2 Quad Q9505 is on rank 993, so the Core 2 Duo T5850 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 T5850
Performance Per Dollar Core 2 Quad Q9505
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core 2 Duo T5850 | Core 2 Quad Q9505 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($150) |
| Longevity | 🛑 Legacy (Merom (2006−2008) / 65 nm) | 🛑 Legacy (Yorkfield (2007−2009) / 45 nm) |
💎 Value Proposition
| Insight | Core 2 Duo T5850 | Core 2 Quad Q9505 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($150) |
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 T5850 and Core 2 Quad Q9505

Core 2 Duo T5850
The Core 2 Duo T5850 is manufactured by Intel. It was released in 2008-01-01. It is based on the Merom (2006−2008) architecture. It features 2 cores and 2 threads. Max frequency: 2.1 GHz. L2 cache: 2 MB. Built on 65 nm process technology. Thermal design power (TDP): 2 MB. Passmark benchmark score: 2,161 points. Launch price was $249.

Core 2 Quad Q9505
The Core 2 Quad Q9505 is manufactured by Intel. It was released in 2008-01-01. It is based on the Yorkfield (2007−2009) architecture. It features 4 cores and 4 threads. Base frequency is 2.83 GHz, with boost up to 0.83 GHz. L3 cache: 6 MB L2 Cache. L2 cache: 6 MB (total). Built on 45 nm process technology. Socket: LGA775. Thermal design power (TDP): 95 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 2,176 points. Launch price was $249.
Processing Power
The Core 2 Duo T5850 packs 2 cores / 2 threads, while the Core 2 Quad Q9505 offers 4 cores / 4 threads — the Core 2 Quad Q9505 has 2 more cores. Boost clocks reach 2.1 GHz on the Core 2 Duo T5850 versus 0.83 GHz on the Core 2 Quad Q9505 — a 86.7% clock advantage for the Core 2 Duo T5850. The Core 2 Duo T5850 uses the Merom (2006−2008) architecture (65 nm), while the Core 2 Quad Q9505 uses Yorkfield (2007−2009) (45 nm). In PassMark, the Core 2 Duo T5850 scores 2,161 against the Core 2 Quad Q9505's 2,176 — a 0.7% lead for the Core 2 Quad Q9505.
| Feature | Core 2 Duo T5850 | Core 2 Quad Q9505 |
|---|---|---|
| Cores / Threads | 2 / 2 | 4 / 4+100% |
| Boost Clock | 2.1 GHz+153% | 0.83 GHz |
| Base Clock | — | 2.83 GHz |
| L3 Cache | — | 6 MB L2 Cache |
| L2 Cache | 2 MB | 6 MB (total)+200% |
| Process | 65 nm | 45 nm-31% |
| Architecture | Merom (2006−2008) | Yorkfield (2007−2009) |
| PassMark | 2,161 | 2,176 |
Advanced Features
Virtualization: not specified (Core 2 Duo T5850) / VT-x (Core 2 Quad Q9505). Primary use case: Core 2 Quad Q9505 targets Desktop.
| Feature | Core 2 Duo T5850 | Core 2 Quad Q9505 |
|---|---|---|
| Integrated GPU | — | No |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | VT-x |
| Target Use | — | Desktop |
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