Core 2 Duo E7400 vs Phenom II X2 X640 BE
Aggregate performance score
Phenom II X2 X640 BE outperforms Core 2 Duo E7400 by an impressive 53% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2689 | 2974 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Desktop processor |
| Series | 2x AMD Phenom II | no data |
| Power efficiency | 0.85 | 0.38 |
| Designer | AMD | Intel |
| Architecture codename | Champlain (2010−2011) | Wolfdale (2008−2010) |
| Release date | 12 May 2011 (14 years ago) | October 2008 (16 years ago) |
Detailed specifications
Phenom II X2 X640 BE and Core 2 Duo E7400 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 2 (Dual-core) | 2 (Dual-core) |
| Threads | 2 | 2 |
| Base clock speed | no data | 2.8 GHz |
| Boost clock speed | 3.2 GHz | 2.8 GHz |
| Bus rate | 3600 MHz | 1066 MHz |
| L1 cache | 256 KB | 64 KB |
| L2 cache | 2 MB | 3 MB (shared) |
| L3 cache | no data | 0 KB |
| Chip lithography | 45 nm | 45 nm |
| Die size | no data | 82 mm2 |
| Maximum case temperature (TCase) | no data | 74 °C |
| Number of transistors | no data | 228 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| VID voltage range | no data | 0.85V-1.3625V |
Compatibility
Information on Phenom II X2 X640 BE and Core 2 Duo E7400 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | no data | 1 |
| Socket | S1 | LGA775 |
| Power consumption (TDP) | 45 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Phenom II X2 X640 BE and Core 2 Duo E7400. You'll probably need this information if you require some particular technology.
| Instruction set extensions | MMX, 3DNow!, SSE1-3A, AMD64, Enhanced Virus Protection, Virtualization | no data |
| VirusProtect | + | - |
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | no data | - |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Demand Based Switching | no data | - |
| FSB parity | no data | - |
Security technologies
Phenom II X2 X640 BE and Core 2 Duo E7400 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Phenom II X2 X640 BE and Core 2 Duo E7400 are enumerated here.
| AMD-V | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Phenom II X2 X640 BE and Core 2 Duo E7400. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR1, DDR2, DDR3 |
Pros & cons summary
| Performance score | 0.90 | 0.59 |
| Power consumption (TDP) | 45 Watt | 65 Watt |
Phenom II X2 X640 BE has a 52.5% higher aggregate performance score, and 44.4% lower power consumption.
The AMD Phenom II X2 X640 BE is our recommended choice as it beats the Intel Core 2 Duo E7400 in performance tests.
Be aware that Phenom II X2 X640 BE is a notebook processor while Core 2 Duo E7400 is a desktop one.
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