Core 2 Duo E4400 vs Pentium 4 506
Primary details
Comparing Pentium 4 506 and Core 2 Duo E4400 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 2944 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Power efficiency | no data | 0.65 |
| Architecture codename | Prescott (2001−2005) | Allendale (2006−2009) |
| Release date | June 2005 (19 years ago) | July 2007 (17 years ago) |
Detailed specifications
Pentium 4 506 and Core 2 Duo E4400 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 | 1 (Single-Core) | 2 (Dual-core) |
| Threads | 1 | 2 |
| Base clock speed | 2.66 GHz | 2 GHz |
| Boost clock speed | 2.66 GHz | 2 GHz |
| Bus rate | no data | 800 MHz |
| L1 cache | 16 KB | 64 KB |
| L2 cache | 1 MB | 2 MB |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 90 nm | 65 nm |
| Die size | 109 mm2 | 111 mm2 |
| Maximum core temperature | 68 °C | L2=61 °C, M0=73 °C |
| Number of transistors | 125 million | 167 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| VID voltage range | 1.25V-1.4V | 0.85V-1.5V |
Compatibility
Information on Pentium 4 506 and Core 2 Duo E4400 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 | 1 | 1 |
| Socket | PLGA775 | LGA775 |
| Power consumption (TDP) | 84 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium 4 506 and Core 2 Duo E4400. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | - | - |
| Hyper-Threading Technology | no data | - |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Demand Based Switching | no data | - |
| FSB parity | no data | - |
Security technologies
Pentium 4 506 and Core 2 Duo E4400 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium 4 506 and Core 2 Duo E4400 are enumerated here.
| VT-x | - | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium 4 506 and Core 2 Duo E4400. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR1, DDR2, DDR3 |
Pros & cons summary
| Physical cores | 1 | 2 |
| Threads | 1 | 2 |
| Chip lithography | 90 nm | 65 nm |
| Power consumption (TDP) | 84 Watt | 65 Watt |
Core 2 Duo E4400 has 100% more physical cores and 100% more threads, a 38.5% more advanced lithography process, and 29.2% lower power consumption.
We couldn't decide between Pentium 4 506 and Core 2 Duo E4400. We've got no test results to judge.
Should you still have questions on choice between Pentium 4 506 and Core 2 Duo E4400, ask them in Comments section, and we shall answer.
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