Pentium 4 HT 640 vs Core 2 Duo E6850
Primary details
Comparing Core 2 Duo (Desktop) E6850 and Pentium 4 HT 640 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2701 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Series | Core 2 Duo (Desktop) | no data |
| Power efficiency | 1.05 | no data |
| Architecture codename | Conroe (2006−2007) | Prescott (2001−2005) |
| Release date | no data | February 2005 (19 years ago) |
Detailed specifications
Core 2 Duo (Desktop) E6850 and Pentium 4 HT 640 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) | 1 (Single-Core) |
| Threads | 2 | 2 |
| Boost clock speed | 3 GHz | 3.2 GHz |
| Bus rate | 1333 MHz | no data |
| L1 cache | 64 KB | 28 KB |
| L2 cache | 4 MB | 2 MB |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 65 nm | 90 nm |
| Die size | 143 mm2 | 109 mm2 |
| Number of transistors | 291 million | 169 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Core 2 Duo (Desktop) E6850 and Pentium 4 HT 640 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 | 775 | 775 |
| Power consumption (TDP) | 65 Watt | 84 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Duo (Desktop) E6850 and Pentium 4 HT 640. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Duo (Desktop) E6850 and Pentium 4 HT 640. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR1, DDR2, DDR3 |
Pros & cons summary
| Physical cores | 2 | 1 |
| Chip lithography | 65 nm | 90 nm |
| Power consumption (TDP) | 65 Watt | 84 Watt |
Core 2 Duo E6850 has 100% more physical cores, a 38.5% more advanced lithography process, and 29.2% lower power consumption.
We couldn't decide between Core 2 Duo E6850 and Pentium 4 HT 640. We've got no test results to judge.
Should you still have questions on choice between Core 2 Duo E6850 and Pentium 4 HT 640, ask them in Comments section, and we shall answer.
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