Pentium D 955 vs A8-3870K
Primary details
Comparing A8-3870K and Pentium D 955 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2175 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Power efficiency | 1.39 | no data |
| Architecture codename | Llano (2011−2012) | Presler (2005−2007) |
| Release date | 20 December 2011 (13 years ago) | January 2006 (18 years ago) |
Detailed specifications
A8-3870K and Pentium D 955 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 | 4 (Quad-Core) | 2 (Dual-core) |
| Threads | 4 | no data |
| Base clock speed | 3 GHz | no data |
| Boost clock speed | 3 GHz | 3.46 GHz |
| L1 cache | 128 KB (per core) | 28 KB |
| L2 cache | 1 MB (per core) | 4096 KB |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 32 nm | 65 nm |
| Die size | 228 mm2 | 140 mm2 |
| Number of transistors | 1,178 million | 376 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | + | - |
Compatibility
Information on A8-3870K and Pentium D 955 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 | 2 |
| Socket | FM1 | 775 |
| Power consumption (TDP) | 100 Watt | 130 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by A8-3870K and Pentium D 955. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by A8-3870K and Pentium D 955 are enumerated here.
| AMD-V | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by A8-3870K and Pentium D 955. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR1, DDR2, DDR3 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon HD 6550D | no data |
Pros & cons summary
| Physical cores | 4 | 2 |
| Chip lithography | 32 nm | 65 nm |
| Power consumption (TDP) | 100 Watt | 130 Watt |
A8-3870K has 100% more physical cores, a 103.1% more advanced lithography process, and 30% lower power consumption.
We couldn't decide between A8-3870K and Pentium D 955. We've got no test results to judge.
Should you still have questions on choice between A8-3870K and Pentium D 955, ask them in Comments section, and we shall answer.
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