Pentium 4 HT 651 vs Core 2 Duo E6700
Primary details
Comparing Core 2 Duo (Desktop) E6700 and Pentium 4 HT 651 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2774 | 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 | 0.90 | no data |
| Architecture codename | Conroe (2006−2007) | Cedar Mill (2006) |
| Release date | no data (2024 years ago) | January 2006 (18 years ago) |
Detailed specifications
Core 2 Duo (Desktop) E6700 and Pentium 4 HT 651 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 | 2.66 GHz | 3.4 GHz |
| Bus rate | 1066 MHz | no data |
| L1 cache | no data | 28 KB |
| L2 cache | no data | 2 MB |
| L3 cache | no data | 0 KB |
| Chip lithography | 65 nm | 65 nm |
| Die size | no data | 81 mm2 |
| Number of transistors | no data | 188 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Core 2 Duo (Desktop) E6700 and Pentium 4 HT 651 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 | no data | 775 |
| Power consumption (TDP) | 65 Watt | 86 Watt |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Duo (Desktop) E6700 and Pentium 4 HT 651. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR1, DDR2, DDR3 |
Pros & cons summary
| Physical cores | 2 | 1 |
| Power consumption (TDP) | 65 Watt | 86 Watt |
Core 2 Duo E6700 has 100% more physical cores, and 32.3% lower power consumption.
We couldn't decide between Core 2 Duo E6700 and Pentium 4 HT 651. We've got no test results to judge.
Should you still have questions on choice between Core 2 Duo E6700 and Pentium 4 HT 651, ask them in Comments section, and we shall answer.
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