Pentium 4 HT 661 vs Pentium 4 HT 631
Primary details
Comparing Pentium 4 HT 631 and Pentium 4 HT 661 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Architecture codename | Cedar Mill (2006) | Cedar Mill (2006) |
| Release date | January 2006 (18 years ago) | 5 January 2006 (18 years ago) |
| Launch price (MSRP) | no data | $401 |
Detailed specifications
Pentium 4 HT 631 and Pentium 4 HT 661 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) | 1 (Single-Core) |
| Threads | 2 | 2 |
| Base clock speed | no data | 3.6 GHz |
| Boost clock speed | 3 GHz | 3.6 GHz |
| L1 cache | 28 KB | 28 KB |
| L2 cache | 2 MB | 2 MB |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 65 nm | 65 nm |
| Die size | 81 mm2 | 81 mm2 |
| Maximum case temperature (TCase) | 69 °C | 69 °C |
| Number of transistors | 188 million | 188 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Pentium 4 HT 631 and Pentium 4 HT 661 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) | 86 Watt | 86 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium 4 HT 631 and Pentium 4 HT 661. 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 Pentium 4 HT 631 and Pentium 4 HT 661. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR1, DDR2, DDR3 |
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