Celeron G540 vs Core 2 Duo E6400
Celeron G540
Core 2 Duo E6400
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 Celeron G540 is positioned at rank 622 and the Core 2 Duo E6400 is on rank 1059, so the Celeron G540 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Celeron G540
Performance Per Dollar Core 2 Duo E6400
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron G540 | Core 2 Duo E6400 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) | 🛑 Legacy (Conroe (2006−2007) / 65 nm) |
💎 Value Proposition
| Insight | Celeron G540 | Core 2 Duo E6400 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+1%) | ❌ Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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 G540 and Core 2 Duo E6400
Celeron G540
The Celeron G540 is manufactured by Intel. It was released in 4 September 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 2.5 GHz, with boost up to 2.5 GHz. L3 cache: 2 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: 1,182 points. Launch price was $158.
Core 2 Duo E6400
The Core 2 Duo E6400 is manufactured by Intel. It was released in 2008-01-01. It is based on the Conroe (2006−2007) architecture. It features 2 cores and 2 threads. Base frequency is 2.13 GHz, with boost up to 2.13 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 65 nm process technology. Socket: LGA775. Thermal design power (TDP): 65 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 1,175 points. Launch price was $249.
Processing Power
Both the Celeron G540 and Core 2 Duo E6400 share an identical 2-core/2-thread configuration. Boost clocks reach 2.5 GHz on the Celeron G540 versus 2.13 GHz on the Core 2 Duo E6400 — a 16% clock advantage for the Celeron G540 (base: 2.5 GHz vs 2.13 GHz). The Celeron G540 uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Core 2 Duo E6400 uses Conroe (2006−2007) (65 nm). In PassMark, the Celeron G540 scores 1,182 against the Core 2 Duo E6400's 1,175 — a 0.6% lead for the Celeron G540. L3 cache: 2 MB (total) on the Celeron G540 vs 0 kB on the Core 2 Duo E6400.
| Feature | Celeron G540 | Core 2 Duo E6400 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 2.5 GHz+17% | 2.13 GHz |
| Base Clock | 2.5 GHz+17% | 2.13 GHz |
| L3 Cache | 2 MB (total) | 0 kB |
| L2 Cache | 256 kB (per core) | 2 MB+700% |
| Process | 32 nm-51% | 65 nm |
| Architecture | Sandy Bridge (2011−2013) | Conroe (2006−2007) |
| PassMark | 1,182 | 1,175 |
| Geekbench 6 Single | 384 | — |
| Geekbench 6 Multi | 655 | — |
Memory & Platform
The Celeron G540 uses the LGA1155 socket (PCIe 2.0), while the Core 2 Duo E6400 uses LGA775 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1333 on the Celeron G540 versus 1066 on the Core 2 Duo E6400 — the Core 2 Duo E6400 supports 198.9% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron G540 supports up to 32 GB of RAM compared to 16 — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes. Chipset compatibility: H61,H67,P67,Z68,B75,Z77 (Celeron G540) and P35,G31,G33,P45 (Core 2 Duo E6400).
| Feature | Celeron G540 | Core 2 Duo E6400 |
|---|---|---|
| Socket | LGA1155 | LGA775 |
| PCIe Generation | PCIe 2.0+82% | PCIe 1.1 |
| Max RAM Speed | DDR3-1333 | 1066+35433% |
| Max RAM Capacity | 32 GB+209715100% | 16 |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 16 | 16 |
Advanced Features
Neither processor supports overclocking. Virtualization support: VT-x (Celeron G540) vs true (Core 2 Duo E6400). The Celeron G540 includes integrated graphics (Intel HD Graphics (Sandy Bridge)), while the Core 2 Duo E6400 requires a dedicated GPU. Primary use case: Celeron G540 targets Desktop. Direct competitor: Celeron G540 rivals Pentium G630; Core 2 Duo E6400 rivals Athlon 64 X2 5400+.
| Feature | Celeron G540 | Core 2 Duo E6400 |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Intel HD Graphics (Sandy Bridge) | None |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | VT-x | true |
| Target Use | Desktop | — |
Value Analysis
The Celeron G540 launched at $42 MSRP, while the Core 2 Duo E6400 debuted at $183. At current prices ($10 vs $10), the Core 2 Duo E6400 is $0 cheaper. In terms of value (PassMark points per dollar), the Celeron G540 delivers 118.2 pts/$ vs 117.5 pts/$ for the Core 2 Duo E6400 — making the Celeron G540 the 0.6% better value option.
| Feature | Celeron G540 | Core 2 Duo E6400 |
|---|---|---|
| MSRP | $42-77% | $183 |
| Avg Price (30d) | $10 | $10 |
| Performance per Dollar | 118.2 | 117.5 |
| Release Date | 2011 | 2006 |
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