
Core 2 Duo SU9400 vs Core 2 Quad Q9000

Core 2 Duo SU9400

Core 2 Quad Q9000
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 SU9400 is positioned at rank 409 and the Core 2 Quad Q9000 is on rank 1216, so the Core 2 Duo SU9400 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 SU9400
Performance Per Dollar Core 2 Quad Q9000
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core 2 Duo SU9400 | Core 2 Quad Q9000 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($15) |
| Longevity | 🛑 Legacy (Penryn (2008−2011) / 45 nm) | 🛑 Legacy (Penryn (2008−2011) / 45 nm) |
💎 Value Proposition
| Insight | Core 2 Duo SU9400 | Core 2 Quad Q9000 |
|---|---|---|
| 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 Core 2 Duo SU9400 and Core 2 Quad Q9000

Core 2 Duo SU9400
The Core 2 Duo SU9400 is manufactured by Intel. It was released in 20 August 2008 (17 years ago). It is based on the Penryn (2008−2011) architecture. It features 2 cores and 2 threads. Base frequency is 1.4 GHz, with boost up to 1.4 GHz. L3 cache: 3 MB L2 Cache. L2 cache: 3 MB. Built on 45 nm process technology. Socket: BGA956. Thermal design power (TDP): 10 Watt. Passmark benchmark score: 1,596 points. Launch price was $262.

Core 2 Quad Q9000
The Core 2 Quad Q9000 is manufactured by Intel. It was released in 1 January 2009 (16 years ago). It is based on the Penryn (2008−2011) architecture. It features 4 cores and 4 threads. Base frequency is 2 GHz, with boost up to 2 GHz. L3 cache: 6 MB L2 Cache. L2 cache: 6 MB. Built on 45 nm process technology. Socket: PGA478. Thermal design power (TDP): 45 Watt. Passmark benchmark score: 1,597 points. Launch price was $348.
Processing Power
The Core 2 Duo SU9400 packs 2 cores / 2 threads, while the Core 2 Quad Q9000 offers 4 cores / 4 threads — the Core 2 Quad Q9000 has 2 more cores. Boost clocks reach 1.4 GHz on the Core 2 Duo SU9400 versus 2 GHz on the Core 2 Quad Q9000 — a 35.3% clock advantage for the Core 2 Quad Q9000 (base: 1.4 GHz vs 2 GHz). Both are built on the Penryn (2008−2011) architecture using a 45 nm process. In PassMark, the Core 2 Duo SU9400 scores 1,596 against the Core 2 Quad Q9000's 1,597 — a 0.1% lead for the Core 2 Quad Q9000. L3 cache: 3 MB L2 Cache on the Core 2 Duo SU9400 vs 6 MB L2 Cache on the Core 2 Quad Q9000.
| Feature | Core 2 Duo SU9400 | Core 2 Quad Q9000 |
|---|---|---|
| Cores / Threads | 2 / 2 | 4 / 4+100% |
| Boost Clock | 1.4 GHz | 2 GHz+43% |
| Base Clock | 1.4 GHz | 2 GHz+43% |
| L3 Cache | 3 MB L2 Cache | 6 MB L2 Cache+100% |
| L2 Cache | 3 MB | 6 MB+100% |
| Process | 45 nm | 45 nm |
| Architecture | Penryn (2008−2011) | Penryn (2008−2011) |
| PassMark | 1,596 | 1,597 |
Memory & Platform
The Core 2 Duo SU9400 uses the BGA956 socket (PCIe 1.1), while the Core 2 Quad Q9000 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard.
| Feature | Core 2 Duo SU9400 | Core 2 Quad Q9000 |
|---|---|---|
| Socket | BGA956 | PGA478 |
| PCIe Generation | PCIe 1.1 | PCIe 1.1 |
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