Celeron G5905T vs Core 2 Duo T6600
Celeron G5905T
Core 2 Duo T6600
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 G5905T
Performance Per Dollar Core 2 Duo T6600
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron G5905T | Core 2 Duo T6600 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($50) | ✅ More affordable ($4) |
| Longevity | ✨ Modern (Legacy / 14 nm) | 🛑 Legacy (Penryn (2008−2011) / 45 nm) |
💎 Value Proposition
| Insight | Celeron G5905T | Core 2 Duo T6600 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+1149%) |
| Upfront Cost | ⚠️ Higher cost ($50) | ✅ More affordable ($4) |
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 G5905T and Core 2 Duo T6600
Celeron G5905T
The Celeron G5905T is manufactured by Intel. It was released in 2007-01-01. It features 2 cores and 2 threads. Base frequency: 3.3 GHz. L3 cache: 4 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: 2,356 points. Launch price was $69.
Core 2 Duo T6600
The Core 2 Duo T6600 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 2.2 GHz, with boost up to 2.2 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: 2,355 points. Launch price was $249.
Processing Power
Both the Celeron G5905T and Core 2 Duo T6600 share an identical 2-core/2-thread configuration. The Core 2 Duo T6600 is built on the Penryn (2008−2011) architecture. In PassMark, the Celeron G5905T scores 2,356 against the Core 2 Duo T6600's 2,355 — a 0% lead for the Celeron G5905T. Geekbench 6 single-core — the metric most relevant to gaming — records 748 vs 200, a 115.6% lead for the Celeron G5905T that directly translates to higher frame rates. Multi-core Geekbench: 750 vs 350 (72.7% advantage for the Celeron G5905T). L3 cache: 4 MB Intel® Smart Cache on the Celeron G5905T vs 2 MB L2 Cache on the Core 2 Duo T6600.
| Feature | Celeron G5905T | Core 2 Duo T6600 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | — | 2.2 GHz |
| Base Clock | 3.3 GHz+50% | 2.2 GHz |
| L3 Cache | 4 MB Intel® Smart Cache+100% | 2 MB L2 Cache |
| L2 Cache | — | 2 MB |
| Process | 14 nm-69% | 45 nm |
| Architecture | — | Penryn (2008−2011) |
| PassMark | 2,356 | 2,355 |
| Geekbench 6 Single | 748+274% | 200 |
| Geekbench 6 Multi | 750+114% | 350 |
Memory & Platform
The Celeron G5905T uses the LGA1200 socket (PCIe 3.0), while the Core 2 Duo T6600 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2666 on the Celeron G5905T versus DDR3-800 on the Core 2 Duo T6600 — the Celeron G5905T supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron G5905T supports up to 128 GB of RAM compared to 8 GB — 176.5% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Celeron G5905T) vs 0 (Core 2 Duo T6600) — the Celeron G5905T offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H410,B460,H470,Z490,H510,B560,H570,Z590 (Celeron G5905T) and GM45,PM45 (Core 2 Duo T6600).
| Feature | Celeron G5905T | Core 2 Duo T6600 |
|---|---|---|
| Socket | LGA1200 | PGA478 |
| PCIe Generation | PCIe 3.0+173% | PCIe 1.1 |
| Max RAM Speed | DDR4-2666+33% | DDR3-800 |
| Max RAM Capacity | 128 GB+1500% | 8 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ✅ | ❌ |
| PCIe Lanes | 16 | 0 |
Advanced Features
Neither processor supports overclocking. Both support VT-x virtualization. The Celeron G5905T includes integrated graphics (UHD Graphics 610), while the Core 2 Duo T6600 requires a dedicated GPU. Primary use case: Celeron G5905T targets Budget, Core 2 Duo T6600 targets Legacy Laptop. Direct competitor: Celeron G5905T rivals Pentium Gold G6405T.
| Feature | Celeron G5905T | Core 2 Duo T6600 |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | UHD Graphics 610 | None |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | VT-x | VT-x |
| Target Use | Budget | Legacy Laptop |
Value Analysis
At current prices ($50 vs $4), the Core 2 Duo T6600 is $46 cheaper. In terms of value (PassMark points per dollar), the Celeron G5905T delivers 47.1 pts/$ vs 588.8 pts/$ for the Core 2 Duo T6600 — making the Core 2 Duo T6600 the 170.4% better value option.
| Feature | Celeron G5905T | Core 2 Duo T6600 |
|---|---|---|
| MSRP | $50 | — |
| Avg Price (30d) | $50 | $4-92% |
| Performance per Dollar | 47.1 | 588.8+1150% |
| Release Date | 2020 | 2009 |
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