Core 2 Duo E6540
Phenom II X2 N640
Core 2 Duo E6540 vs Phenom II X2 N640 Performance Spectrum
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.
Core 2 Duo E6540 vs Phenom II X2 N640 FPS Benchmarks
Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.
Search any supported game below to compare 1080p FPS for both components.
Path of Exile 2
Counter-Strike 2
League of Legends
Valorant
Among Us
Apex Legends
ARC Raiders
Baldur's Gate 3
Call of Duty: Black Ops 6
Core 2 Duo E6540 vs Phenom II X2 N640: Pros, Cons & Final Verdict
See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.
Core 2 Duo E6540
2007Why buy it
- ✅Includes a boxed cooler (true), unlike Phenom II X2 N640.
Trade-offs
- ❌Lower PassMark (1,495 vs 1,505).
- ❌Lower PassMark per dollar, at 9.2 vs 15.1 PassMark/$ ($163 MSRP vs $100 MSRP).
- ❌3150% higher power demand at 65W vs 2W.
Phenom II X2 N640
2010Why buy it
- ✅Costs $63 less on MSRP ($100 MSRP vs $163 MSRP).
- ✅Delivers 64.1% more PassMark for each dollar spent, at 15.1 vs 9.2 PassMark/$ ($100 MSRP vs $163 MSRP).
- ✅Draws 2W instead of 65W, a 63W reduction.
Trade-offs
- ❌No boxed cooler included, unlike Core 2 Duo E6540.
Quick Answers
So, is Phenom II X2 N640 better than Core 2 Duo E6540?
Which one is better for gaming?
Which one is better for streaming, content creation, and heavy multitasking?
Which one is the smarter buy today, not just the cheaper CPU?
Which one is more future-proof for 2026 and beyond?
Core 2 Duo E6540 vs Phenom II X2 N640 Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.
Core 2 Duo E6540
The Core 2 Duo E6540 is manufactured by Intel. It was released in 2008-01-01. It has 2 cores. Base frequency: 2.33 GHz. L3 cache: 4 MB L2 Cache. Built on 65 nm process technology. Socket: LGA775. Thermal design power (TDP): 65 Watt. Passmark benchmark score: 1,495 points. Launch price was $249.
Phenom II X2 N640
The Phenom II X2 N640 is manufactured by AMD. It was released in 2009-01-01. It is based on the Champlain (2010−2011) architecture. It features 2 cores and 2 threads. Max frequency: 2.9 GHz. L2 cache: 2 MB. Built on 45 nm process technology. Socket: S1. Thermal design power (TDP): 2 MB. Memory support: DDR3. Passmark benchmark score: 1,505 points. Launch price was $149.
Processing Power
Both the Core 2 Duo E6540 and Phenom II X2 N640 share an identical 2-core/2-thread configuration. The Phenom II X2 N640 is built on the Champlain (2010−2011) architecture. In PassMark, the Core 2 Duo E6540 scores 1,495 against the Phenom II X2 N640's 1,505 — a 0.7% lead for the Phenom II X2 N640.
| Feature | Core 2 Duo E6540 | Phenom II X2 N640 |
|---|---|---|
| Cores / Threads | 2 | 2 / 2 |
| Boost Clock | — | 2.9 GHz |
| Base Clock | 2.33 GHz | — |
| L3 Cache | 4 MB L2 Cache | — |
| L2 Cache | — | 2 MB |
| Process | 65 nm | 45 nm-31% |
| Architecture | — | Champlain (2010−2011) |
| PassMark | 1,495 | 1,505 |
| Geekbench 6 Single | — | 300 |
| Geekbench 6 Multi | — | 422 |
Memory & Platform
The Core 2 Duo E6540 uses the LGA775 socket (PCIe 1.1), while the Phenom II X2 N640 uses S1 (PCIe 2.0) — making them incompatible on the same motherboard. Both support up to 1333 memory speed. The Core 2 Duo E6540 supports up to 16 GB of RAM compared to 8 GB — 100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes. Chipset compatibility: P35,G31,G33,P45 (Core 2 Duo E6540) and RS880M (Phenom II X2 N640).
| Feature | Core 2 Duo E6540 | Phenom II X2 N640 |
|---|---|---|
| Socket | LGA775 | S1 |
| PCIe Generation | PCIe 1.1 | PCIe 2.0+82% |
| Max RAM Speed | 1333 | DDR3-1333 |
| Max RAM Capacity | 16 GB+100% | 8 GB |
| RAM Channels | 2 | 2 |
| ECC Support | No | No |
| PCIe Lanes | 16 | 16 |
Advanced Features
Neither processor supports overclocking. Virtualization support: true (Core 2 Duo E6540) vs AMD-V (Phenom II X2 N640). Primary use case: Phenom II X2 N640 targets Legacy Laptop. Direct competitor: Core 2 Duo E6540 rivals Athlon 64 X2 6000+.
| Feature | Core 2 Duo E6540 | Phenom II X2 N640 |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | true | AMD-V |
| Target Use | — | Legacy Laptop |
Value Analysis
At launch, the Core 2 Duo E6540 was priced at $163, while the Phenom II X2 N640 came in at $100. On launch pricing ($163 vs $100), Phenom II X2 N640 was $63 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core 2 Duo E6540 delivers 9.2 pts/$ vs 15.1 pts/$ for the Phenom II X2 N640 — making the Phenom II X2 N640 the 48.5% better value option.
| Feature | Core 2 Duo E6540 | Phenom II X2 N640 |
|---|---|---|
| MSRP | $163 | $100-39% |
| Performance per Dollar | 9.2 | 15.1+64% |
| Release Date | 2007 | 2010 |
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