Athlon 64 FX-55 vs Pentium 4 660
Primary details
Comparing Pentium 4 660 and Athlon 64 FX-55 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Series | Pentium 4 | no data |
| Architecture codename | Prescott 2M | Clawhammer (2001−2005) |
| Release date | no data | 10 October 2004 (19 years ago) |
| Launch price (MSRP) | no data | $180 |
Detailed specifications
Pentium 4 660 and Athlon 64 FX-55 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 | 1 | 1 |
| Base clock speed | 3.6 GHz | 2.6 GHz |
| Boost clock speed | 3.6 GHz | 2.6 GHz |
| Bus rate | 800 MHz | no data |
| L1 cache | no data | 128 KB |
| L2 cache | no data | 1 MB |
| L3 cache | 2 MB L2 Cache | 0 KB |
| Chip lithography | 90 nm | 130 nm |
| Die size | no data | 193 mm2 |
| Maximum core temperature | 71 °C | no data |
| Maximum case temperature (TCase) | no data | 63 °C |
| Number of transistors | no data | 105 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | - | + |
| VID voltage range | 1.2V-1.4V | no data |
Compatibility
Information on Pentium 4 660 and Athlon 64 FX-55 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 | PLGA775,PPGA775 | 939 |
| Power consumption (TDP) | 115 Watt | 104 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium 4 660 and Athlon 64 FX-55. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | + | no data |
| Turbo Boost Technology | - | no data |
| Hyper-Threading Technology | + | no data |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Demand Based Switching | - | no data |
| FSB parity | - | no data |
| Status | Discontinued | no data |
Security technologies
Pentium 4 660 and Athlon 64 FX-55 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | no data |
| EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium 4 660 and Athlon 64 FX-55 are enumerated here.
| VT-x | - | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium 4 660 and Athlon 64 FX-55. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR1 Depends on motherboard |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | On certain motherboards (Chipset feature) |
Pros & cons summary
| Chip lithography | 90 nm | 130 nm |
| Power consumption (TDP) | 115 Watt | 104 Watt |
Pentium 4 660 has a 44.4% more advanced lithography process.
Athlon 64 FX-55, on the other hand, has 10.6% lower power consumption.
We couldn't decide between Pentium 4 660 and Athlon 64 FX-55. We've got no test results to judge.
Should you still have questions on choice between Pentium 4 660 and Athlon 64 FX-55, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
