Pentium 4 HT 651 vs Athlon X2 7550
Primary details
Comparing Athlon X2 7550 and Pentium 4 HT 651 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 | Kuma (2008−2009) | Cedar Mill (2006) |
| Release date | December 2008 (15 years ago) | January 2006 (18 years ago) |
Detailed specifications
Athlon X2 7550 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 | 2.5 GHz | 3.4 GHz |
| L1 cache | 128 KB (per core) | 28 KB |
| L2 cache | 512 KB (per core) | 2 MB |
| L3 cache | 2 MB (shared) | 0 KB |
| Chip lithography | 65 nm | 65 nm |
| Die size | 285 mm2 | 81 mm2 |
| Number of transistors | 450 million | 188 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Athlon X2 7550 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 | 1 | 1 |
| Socket | AM2+ | 775 |
| Power consumption (TDP) | 95 Watt | 86 Watt |
Virtualization technologies
Virtual machine speed-up technologies supported by Athlon X2 7550 and Pentium 4 HT 651 are enumerated here.
| AMD-V | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Athlon X2 7550 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) | 95 Watt | 86 Watt |
Athlon X2 7550 has 100% more physical cores.
Pentium 4 HT 651, on the other hand, has 10.5% lower power consumption.
We couldn't decide between Athlon X2 7550 and Pentium 4 HT 651. We've got no test results to judge.
Should you still have questions on choice between Athlon X2 7550 and Pentium 4 HT 651, ask them in Comments section, and we shall answer.
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