Core Duo T2300 vs Pentium G840
Core Duo T2300
Pentium G840
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 Duo T2300 is positioned at rank 55 and the Pentium G840 is on rank 764, so the Core Duo T2300 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core Duo T2300
Performance Per Dollar Pentium G840
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core Duo T2300 | Pentium G840 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($15) |
| Longevity | 🛑 Legacy (Yonah (2005−2006) / 65 nm) | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) |
💎 Value Proposition
| Insight | Core Duo T2300 | Pentium G840 |
|---|---|---|
| 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 Duo T2300 and Pentium G840
Core Duo T2300
The Core Duo T2300 is manufactured by Intel. It was released in 2008-01-01. It is based on the Yonah (2005−2006) architecture. It features 2 cores and 2 threads. Base frequency is 1.66 GHz, with boost up to 1.66 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 31 Watt. Memory support: DDR1. Passmark benchmark score: 1,380 points. Launch price was $249.
Pentium G840
The Pentium G840 is manufactured by Intel. It was released in 22 May 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 2.8 GHz, with boost up to 2.8 GHz. L3 cache: 3 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 1,367 points. Launch price was $60.
Processing Power
Both the Core Duo T2300 and Pentium G840 share an identical 2-core/2-thread configuration. Boost clocks reach 1.66 GHz on the Core Duo T2300 versus 2.8 GHz on the Pentium G840 — a 51.1% clock advantage for the Pentium G840 (base: 1.66 GHz vs 2.8 GHz). The Core Duo T2300 uses the Yonah (2005−2006) architecture (65 nm), while the Pentium G840 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Core Duo T2300 scores 1,380 against the Pentium G840's 1,367 — a 0.9% lead for the Core Duo T2300. L3 cache: 0 kB on the Core Duo T2300 vs 3 MB (total) on the Pentium G840.
| Feature | Core Duo T2300 | Pentium G840 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 1.66 GHz | 2.8 GHz+69% |
| Base Clock | 1.66 GHz | 2.8 GHz+69% |
| L3 Cache | 0 kB | 3 MB (total) |
| L2 Cache | 2 MB+700% | 256 kB (per core) |
| Process | 65 nm | 32 nm-51% |
| Architecture | Yonah (2005−2006) | Sandy Bridge (2011−2013) |
| PassMark | 1,380 | 1,367 |
Memory & Platform
The Core Duo T2300 uses the PGA478 socket (PCIe 1.1), while the Pentium G840 uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Core Duo T2300 | Pentium G840 |
|---|---|---|
| Socket | PGA478 | LGA1155 |
| PCIe Generation | PCIe 1.1 | PCIe 2.0+82% |
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