Celeron G5900T vs Core 2 Quad Q9450
Celeron G5900T
Core 2 Quad Q9450
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.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Celeron G5900T
Performance Per Dollar Core 2 Quad Q9450
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron G5900T | Core 2 Quad Q9450 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($50) | ✅ More affordable ($15) |
| Longevity | ✨ Modern (Legacy / 14 nm) | 🛑 Legacy (Yorkfield (2007−2009) / 45 nm) |
💎 Value Proposition
| Insight | Celeron G5900T | Core 2 Quad Q9450 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+236%) |
| Upfront Cost | ⚠️ Higher cost ($50) | ✅ More affordable ($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 Celeron G5900T and Core 2 Quad Q9450
Celeron G5900T
The Celeron G5900T is manufactured by Intel. It was released in 2007-01-01. It features 2 cores and 2 threads. Base frequency: 3.2 GHz. L3 cache: 2 MB Intel® Smart Cache. Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 35 Watt. Memory support: DDR4-2666. Passmark benchmark score: 2,192 points. Launch price was $69.
Core 2 Quad Q9450
The Core 2 Quad Q9450 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 2.66 GHz, with boost up to 2.67 GHz. L3 cache: 0 kB. L2 cache: 12 MB (total). Built on 45 nm process technology. Socket: LGA775. Thermal design power (TDP): 95 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 2,208 points. Launch price was $249.
Processing Power
The Celeron G5900T packs 2 cores / 2 threads, while the Core 2 Quad Q9450 offers 4 cores / 4 threads — the Core 2 Quad Q9450 has 2 more cores. The Core 2 Quad Q9450 is built on the Yorkfield (2007−2009) architecture. In PassMark, the Celeron G5900T scores 2,192 against the Core 2 Quad Q9450's 2,208 — a 0.7% lead for the Core 2 Quad Q9450. L3 cache: 2 MB Intel® Smart Cache on the Celeron G5900T vs 0 kB on the Core 2 Quad Q9450.
| Feature | Celeron G5900T | Core 2 Quad Q9450 |
|---|---|---|
| Cores / Threads | 2 / 2 | 4 / 4+100% |
| Boost Clock | — | 2.67 GHz |
| Base Clock | 3.2 GHz+20% | 2.66 GHz |
| L3 Cache | 2 MB Intel® Smart Cache | 0 kB |
| L2 Cache | — | 12 MB (total) |
| Process | 14 nm-69% | 45 nm |
| Architecture | — | Yorkfield (2007−2009) |
| PassMark | 2,192 | 2,208 |
| Geekbench 6 Single | 748 | — |
| Geekbench 6 Multi | 750 | — |
Memory & Platform
The Celeron G5900T uses the LGA1200 socket (PCIe 3.0), while the Core 2 Quad Q9450 uses LGA775 (PCIe 1.1) — making them incompatible on the same motherboard.
| Feature | Celeron G5900T | Core 2 Quad Q9450 |
|---|---|---|
| Socket | LGA1200 | LGA775 |
| PCIe Generation | PCIe 3.0+173% | PCIe 1.1 |
| Max RAM Speed | DDR4-2666 | — |
| Max RAM Capacity | 128 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ✅ | — |
| PCIe Lanes | 16 | — |
Advanced Features
Virtualization: VT-x (Celeron G5900T) / not specified (Core 2 Quad Q9450). The Celeron G5900T includes integrated graphics (UHD Graphics 610), while the Core 2 Quad Q9450 requires a dedicated GPU. Primary use case: Celeron G5900T targets Budget. Direct competitor: Celeron G5900T rivals Pentium Gold G6400T.
| Feature | Celeron G5900T | Core 2 Quad Q9450 |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | UHD Graphics 610 | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | VT-x | — |
| Target Use | Budget | — |
Value Analysis
The Celeron G5900T launched at $42 MSRP, while the Core 2 Quad Q9450 debuted at $316. At current prices ($50 vs $15), the Core 2 Quad Q9450 is $35 cheaper. In terms of value (PassMark points per dollar), the Celeron G5900T delivers 43.8 pts/$ vs 147.2 pts/$ for the Core 2 Quad Q9450 — making the Core 2 Quad Q9450 the 108.2% better value option.
| Feature | Celeron G5900T | Core 2 Quad Q9450 |
|---|---|---|
| MSRP | $42-87% | $316 |
| Avg Price (30d) | $50 | $15-70% |
| Performance per Dollar | 43.8 | 147.2+236% |
| Release Date | 2020 | 2008 |
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